diff --git a/.gitignore b/.gitignore
index 73ada70..3ef2023 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,4 +25,5 @@ forge-*
 confdeps.*
 conftest.*
 forge_saved_state.txt
-*.py
\ No newline at end of file
+*.py
+error.glsl
\ No newline at end of file
diff --git a/DEVELOPMENT.md b/DEVELOPMENT.md
index eead825..f739abc 100644
--- a/DEVELOPMENT.md
+++ b/DEVELOPMENT.md
@@ -85,7 +85,7 @@ make -f Makefile.dev release-arch
   - [x] Clean code and fix things
   - [x] Share openGL state between monitor and screen
 - [ ] Default project
-  - [ ] split with includes
+  - [x] split with includes
   - [ ] src 9: game of life
   - [ ] src 10 : ?
   - [ ] src 11 : ?
@@ -94,7 +94,8 @@ make -f Makefile.dev release-arch
   - [ ] src 15 : debug -> calibration screen
   - [ ] fx 11 : colorize range (pretty color ranges)
   - [ ] fx 12 : spill
-  - [ ] frag 10 : move debug screen here + add src/fx/A/B indicators
+  - [x] frag 10 : move debug screen here
+  - [ ] debug : add src/fx/A/B indicators
 - [ ] Other
   - [x] `forge_project.cfg`
   - [x] Define frag prefix in config
@@ -103,6 +104,7 @@ make -f Makefile.dev release-arch
   - [x] Pass "heavy" struct as pointer to avoid stack overload
   - [x] Clean and sort args
   - [x] `--auto-random` / `--no-auto-random`
+  - [x] Dump failed compilation into tmp file
   - [ ] Update readme with usage documentation
   - [x] Documentation in default config file
   - [x] Clone "shaders" and config in system path at setup
diff --git a/default/frag0.glsl b/default/frag0.glsl
deleted file mode 100644
index 802b570..0000000
--- a/default/frag0.glsl
+++ /dev/null
@@ -1,1830 +0,0 @@
-#version 460
-
-// COMMON DEFINITIONS AND FUNCTIONS
-// ================================
-
-// 1. real time uniforms
-// ---------------------
-
-uniform float iTime;
-uniform float iTempo;
-uniform float iBeats;
-uniform int iFPS;
-uniform vec2 iResolution;
-uniform vec2 iTexResolution;
-uniform vec2 iInputResolution1;
-uniform vec2 iInputResolution2;
-uniform int iInputFormat1;
-uniform int iInputFormat2;
-uniform int iDemo;
-uniform int iAutoRand;
-uniform int iPage;
-uniform int iSelected;
-
-uniform int iSeed1;
-uniform int iSeed2;
-uniform int iSeed3;
-uniform int iSeed4;
-uniform int iSeed5;
-uniform int iSeed6;
-uniform int iSeed7;
-uniform int iSeed8;
-
-uniform int iState3;
-uniform int iState4;
-uniform int iState5;
-uniform int iState6;
-uniform int iState8;
-
-uniform int iActive1;
-uniform int iActive2;
-
-uniform vec3 iMidi2_1[7];
-uniform vec3 iMidi2_2[7];
-uniform vec3 iMidi2_3[7];
-uniform vec3 iMidi3_1[2];
-
-// 2. textures
-// ---------------
-
-uniform sampler2D iTex0;
-uniform sampler2D iTex1;
-uniform sampler2D iTex2;
-uniform sampler2D iTex3;
-uniform sampler2D iTex4;
-uniform sampler2D iTex5;
-uniform sampler2D iTex6;
-uniform sampler2D iTex7;
-uniform sampler2D iTex8;
-uniform sampler2D iTex9;
-
-// 3. definitions
-// --------------
-
-const float PI = 3.1415927;
-const int YUYV_FOURCC = 1448695129;
-
-// 4. functions
-// ------------
-
-// BASICS
-
-float ease(float x) {
-    return 0.5 - cos(max(min(x, 1.0), 0.0)*PI) * 0.5;
-}
-
-vec2 ease(vec2 x) {
-    return 0.5 - cos(max(min(x, 1.0), 0.0)*PI) * 0.5;
-}
-
-vec3 ease(vec3 x) {
-    return 0.5 - cos(max(min(x, 1.0), 0.0)*PI) * 0.5;
-}
-
-float saw(float x){
-    return abs(mod(x+1,2)-1);
-}
-
-vec2 saw(vec2 x){
-    return abs(mod(x+1,2)-1);
-}
-
-vec3 saw(vec3 x){
-    return abs(mod(x+1,2)-1);
-}
-
-float cmod(float x, float k){
-    return mod(x + k * 0.5, k) - k * 0.5;
-}
-
-vec2 cmod(vec2 x, float k){
-    return mod(x + k * 0.5, k) - k * 0.5;
-}
-
-vec3 cmod(vec3 x, float k){
-    return mod(x + k * 0.5, k) - k * 0.5;
-}
-
-// RANDOM
-
-float rand(float seed){
-    float v=pow(abs(seed),6./7.);
-    v*=sin(v)+1.;
-    return fract(v);
-}
-
-float rand(vec2 n){
-    return rand(n.x * 1234 + n.y * 9876);
-}
-
-// COLORS
-
-vec3 col(float x){
-    return vec3(
-        .5*(sin(x*2.*PI)+1.),
-        .5*(sin(x*2.*PI+2.*PI/3.)+1.),
-        .5*(sin(x*2.*PI-2.*PI/3.)+1.)
-    );
-}
-
-vec3 shift(vec3 c, float f) {
-    return vec3(
-        c.x * (1 - f) + c.y * f,
-        c.y * (1 - f) + c.z * f,
-        c.z * (1 - f) + c.x * f
-    );
-}
-
-vec3 shift3(vec3 c, float f) {
-    return shift(shift(shift(c, f), f), f);
-}
-
-float mean(vec3 v)
-{
-    return v.x * 0.3333 + v.y * 0.3333 + v.z * 0.3333;
-}
-
-float mean(vec4 v)
-{
-    return v.x * 0.3333 + v.y * 0.3333 + v.z * 0.3333;
-}
-
-// TIME
-
-float randTime(float seed){
-    return rand(seed + floor(iBeats / 4));
-}
-
-float divider(float x)
-{
-    if (x < 0.1) return 0;
-    if (x < 0.2) return 0.125;
-    if (x < 0.3) return 0.25;
-    if (x < 0.4) return 0.5;
-    if (x < 0.6) return 1;
-    if (x < 0.8) return 2;
-    return 4;
-}
-
-float modTime(float k, float k2)
-{
-    return mod(divider(k) * iBeats * k2 / 4, 1);
-}
-
-float modTime(float k)
-{
-    return modTime(k, 1.0);
-}
-
-float sinTime(float k)
-{
-    return sin(modTime(k, 0.5) * 2 * PI);
-}
-
-float cosTime(float k)
-{
-    return cos(modTime(k, 0.5) * 2 * PI);
-}
-
-// MAGIC
-
-vec2 magic_f(vec2 F, vec3 B, float i)
-{
-    return vec2(
-        mix(F.x, randTime(i + 1), min(1, B.z + iDemo)),
-        mix(F.y, randTime(i + 2), min(1, B.z + iDemo))
-    );
-}
-
-vec2 magic_f(float i)
-{
-    return magic_f(vec2(0), vec3(0, 0, 1), i);
-}
-
-vec3 magic_b(vec3 B, float i)
-{
-    return vec3(
-        mix(B.x, step(0.2, randTime(i + 3)), min(1, B.z + iDemo)),
-        mix(B.y, step(0.5, randTime(i + 4)), min(1, B.z + iDemo)),
-        min(1, B.z + iDemo)
-    );
-}
-
-vec3 magic_b(float i)
-{
-    return magic_b(vec3(0, 0, 1), i);
-}
-
-bool magic_trigger(vec3 B, float i)
-{
-    return magic_b(B, i).x > 0;
-}
-
-bool magic_trigger(float i)
-{
-    return magic_b(i).x > 0;
-}
-
-float magic(vec2 F, vec3 B, float i)
-{
-    vec2 f = magic_f(F, B, i);
-    vec3 b = magic_b(B, i);
-
-    return mix(0, f.x * mix(1 - modTime(f.y), cosTime(f.y) * 0.5 + 0.5, b.y), b.x);
-}
-
-float magic(float i)
-{
-    return magic(vec2(0), vec3(0, 0, 1), i);
-}
-
-float magic_reverse(vec2 F, vec3 B, float i)
-{
-    vec2 f = magic_f(F, B, i);
-    vec3 b = magic_b(B, i);
-
-    return mix(0, f.x * mix(1 - modTime(f.y), modTime(f.y), b.y), b.x);
-}
-
-float magic_reverse(float i)
-{
-    return magic_reverse(vec2(0), vec3(0, 0, 1), i);
-}
-
-// EFFECTS
-
-mat2 rot(float angle){
-    return mat2(
-        cos(angle*2.*PI),-sin(angle*2.*PI),
-        sin(angle*2.*PI),cos(angle*2.*PI)
-    );
-}
-
-vec2 lens(vec2 uv, float limit, float power) {
-    return uv * (1 + limit + length(uv * power));
-}
-
-vec2 kal(vec2 uv, float n) {
-    float t = atan(uv.y, uv.x) + PI * 0.5;
-    float q = 3.0 / (2.0 * PI);
-    t = abs(mod(t + PI / (n), 2 * PI / n) - PI / (n));
-    return length(uv) * vec2(
-        cos(t),
-        sin(t)
-    );
-}
-
-vec2 kal2(vec2 uv, float n) {
-    float t = atan(uv.y, uv.x) + PI * 0.5;
-    float t2 = abs(mod(t + PI / n, 2 * PI / n) - PI / n);
-    return length(uv) * vec2(
-        cos(t2),
-        sin(t2)
-    );
-}
-
-// NOISE
-
-float noise(vec2 n)
-{
-    const vec2 d = vec2(0, 1);
-    vec2 b = floor(n);
-    vec2 f = fract(n);
-    f *= f * (3 - 2 * f);
-    return mix(mix(rand(b), rand(b + d.yx), f.x), mix(rand(b + d.xy), rand(b + d.yy), f.x), f.y);
-}
-
-float noise_f(vec2 n, int f)
-{
-    float o = noise(n) / 2;
-    o += mix(o, noise(n * 2), f > 1 ? 1 : 0) / 4;
-    o += mix(o, noise(n * 4), f > 2 ? 1 : 0) / 8;
-    o += mix(o, noise(n * 8), f > 3 ? 1 : 0) / 16;
-    o += mix(o, noise(n * 16), f > 4 ? 1 : 0) / 32;
-    return o;
-}
-
-// VORONOI
-
-float v_index(vec2 uv) {
-    return floor(uv.x) + floor(uv.y) * 45;
-}
-
-vec2 v_pos(float i) {
-    int iTimeId = int(iBeats);
-    float iTimeV = iBeats - iTimeId;
-
-    float x0 = rand(i + 823 + iTimeId);
-    float y0 = rand(i + 328 + iTimeId);
-    
-    float x1 = rand(i + 823 + iTimeId + 1);
-    float y1 = rand(i + 328 + iTimeId + 1);
-    
-    return vec2(
-        mix(x0, x1, ease(ease(iTimeV))),
-        mix(y0, y1, ease(ease(iTimeV)))
-    );
-}
-
-vec4 voronoi(vec2 uv, float dist) {
-    vec4 o = vec4(0, 0, 2, 0);
-    vec4 t = vec4(0, 0, 2, 0);
-    float d, i;
-    vec2 uv2, p;
-    for (int dx = -1; dx <= 1; dx++) {
-        for (int dy = -1; dy <= 1; dy++) {
-            uv2 = vec2(floor(uv.x) + dx, floor(uv.y) + dy);
-            i = v_index(uv2);
-            p = uv2 + v_pos(i) * dist;
-            d = length(p - uv);
-            if (d < o.z) {
-                t = o;
-                o = vec4(p, d, i);
-            } else if (d < t.z) {
-                t = vec4(p, d, i);
-            }
-        }
-    }
-    return vec4(o.z, t.z, o.w, t.w);
-}
-
-// SHAPES
-
-float stripe(float x, float k1, float k2)
-{
-    return k2 > k1 ? (1 - step(x, k1)) * (step(x, k2)) : ((1 - step(x, k2)) * (step(x, k1)));
-}
-
-float capsule(vec2 uv, float r, float d, float a)
-{
-    uv *= rot(a);
-    float f1 = step(uv.x, r) * step(-uv.x, r) * step(uv.y, d - r) * step(-uv.y, d - r);
-    float f2 = step(length(uv - vec2(0, d - r)), r);
-    float f3 = step(length(uv + vec2(0, d - r)), r);
-    return min(1, f1 + f2 + f3);
-}
-
-float rect(vec2 uv, vec2 c, vec2 size) {
-    uv -= c;
-    return step(abs(uv.x), size.x) * step(abs(uv.y), size.y);
-}
-
-float h_rect(vec2 uv, vec2 c, vec2 size, float k) {
-    return rect(uv, c, size + k * 0.5) - rect(uv, c, size - k * 0.5);
-}
-
-// INPUTS
-
-vec4 reframe(sampler2D tex, vec2 uv)
-{
-    uv = uv * vec2(iResolution.y / iResolution.x, 1)  + .5;
-    uv = saw(uv);
-    return texture(tex, uv);
-}
-
-vec4 reframe_b(sampler2D tex, vec2 uv)
-{
-    uv = uv * vec2(iResolution.y / iResolution.x, 1)  + .5;
-    return texture(tex, uv);
-}
-
-// BLUR
-
-float gaussian_weight(float x, float sigma)
-{
-    return exp(-(x * x) / (2.0 * sigma * sigma));
-}
-
-vec4 gauss(sampler2D tex, vec2 uv, const int kernel_size, float spm, float sigma, float bloom)
-{
-    int x, y;
-    vec2 offset;
-    float w;
-    vec4 sum = vec4(0);
-    float weight_sum = 0;
-    for (y = -kernel_size; y <= kernel_size; ++y) {
-        for (x = -kernel_size; x <= kernel_size; ++x) {
-            offset = vec2(x, y) * spm;
-            w = gaussian_weight(length(vec2(x, y)), sigma);
-            sum += texture(tex, uv + offset) * w;
-            weight_sum += w;
-        }
-    }
-    return (sum / weight_sum) * bloom;
-}
-
-vec4 gauss(sampler2D tex, vec2 uv, const int kernel_size, float spm, float sigma)
-{
-    return gauss(tex, uv, kernel_size, spm, sigma, 1.0);
-}
-
-vec4 gauss(sampler2D tex, vec2 uv, const int kernel_size, float spm)
-{
-    return gauss(tex, uv, kernel_size, spm, 2.0);
-}
-
-vec4 gauss(sampler2D tex, vec2 uv, const int kernel_size)
-{
-    return gauss(tex, uv, kernel_size, 1 / max(iResolution.x, iResolution.y));
-}
-
-vec4 gauss(sampler2D tex, vec2 uv)
-{
-    return gauss(tex, uv, 3);
-}
-
-float dither(vec2 uv, float x)
-{
-    bool o = false;
-    o = o || x * 16 >= 1 && floor(mod(uv.x, 4)) == 0 && floor(mod(uv.y, 4)) == 0;
-    o = o || x * 16 >= 2 && floor(mod(uv.x, 4)) == 2 && floor(mod(uv.y, 4)) == 2;
-    o = o || x * 16 >= 3 && floor(mod(uv.x, 4)) == 0 && floor(mod(uv.y, 4)) == 2;
-    o = o || x * 16 >= 4 && floor(mod(uv.x, 4)) == 2 && floor(mod(uv.y, 4)) == 0;
-    o = o || x * 16 >= 5 && floor(mod(uv.x, 4)) == 1 && floor(mod(uv.y, 4)) == 1;
-    o = o || x * 16 >= 6 && floor(mod(uv.x, 4)) == 3 && floor(mod(uv.y, 4)) == 3;
-    o = o || x * 16 >= 7 && floor(mod(uv.x, 4)) == 1 && floor(mod(uv.y, 4)) == 3;
-    o = o || x * 16 >= 8 && floor(mod(uv.x, 4)) == 3 && floor(mod(uv.y, 4)) == 1;
-    o = o || x * 16 >= 9 && floor(mod(uv.x, 4)) == 1 && floor(mod(uv.y, 4)) == 0;
-    o = o || x * 16 >= 10 && floor(mod(uv.x, 4)) == 3 && floor(mod(uv.y, 4)) == 2;
-    o = o || x * 16 >= 11 && floor(mod(uv.x, 4)) == 1 && floor(mod(uv.y, 4)) == 2;
-    o = o || x * 16 >= 12 && floor(mod(uv.x, 4)) == 3 && floor(mod(uv.y, 4)) == 0;
-    o = o || x * 16 >= 13 && floor(mod(uv.x, 4)) == 0 && floor(mod(uv.y, 4)) == 1;
-    o = o || x * 16 >= 14 && floor(mod(uv.x, 4)) == 2 && floor(mod(uv.y, 4)) == 3;
-    o = o || x * 16 >= 15 && floor(mod(uv.x, 4)) == 0 && floor(mod(uv.y, 4)) == 3;
-    o = o || x * 16 >= 16 && floor(mod(uv.x, 4)) == 2 && floor(mod(uv.y, 4)) == 1;
-    return o ? 1 : 0;
-}
-
-// CP 437
-
-const int cp437[] = {
-    0x0000, 0x0000, 0x0000, 0x0000, // 0x00, NUL
-    0x151E, 0x8A87, 0xE19D, 0x789B, // 0x01, SOH, SMILEY BLACK
-    0xFBFE, 0xFDF7, 0xEF73, 0x7FEC, // 0x02, STX, SMILEY LIGHT
-    0xFFF6, 0x7773, 0x08CE, 0x0013, // 0x03, ETX, HEART
-    0xFEC8, 0x7310, 0x08CE, 0x0013, // 0x04, EOT, DIAMOND
-    0xFCEC, 0x7131, 0xECEF, 0x3137, // 0x05, ENQ, CLUB
-    0xEC88, 0x3100, 0xECEF, 0x3137, // 0x06, ACK, SPADE
-    0xC800, 0x3100, 0x008C, 0x0013, // 0x07, BEL, DOT
-    0x37FF, 0xCEFF, 0xFF73, 0xFFEC, // 0x08, BS, INVERT DOT
-    0x26C0, 0x4630, 0x0C62, 0x0364, // 0x09, HT, CIRCLE
-    0xD93F, 0xB9CF, 0xF39D, 0xFC9B, // 0x0A, LF, INVERT CIRCLE
-    0xE000, 0xBFEF, 0xE333, 0x1333, // 0x0B, VT, MALE
-    0x666C, 0x6663, 0x8E8C, 0x1713, // 0x0C, FF, FEMALE
-    0xCCCC, 0x0FCF, 0x7FEC, 0x0000, // 0x0D, CR, NOTE
-    0x6E6E, 0xCFCF, 0x3766, 0x06EC, // 0x0E, SO, DOUBLE NOTE
-    0x7CA9, 0xE359, 0x9AC7, 0x953E, // 0x0F, SI, SUN
-    0xFF71, 0x7100, 0x017F, 0x0001, // 0x10, DLE, RIGHT TRIANGLE
-    0xFC00, 0x7774, 0x000C, 0x0477, // 0x11, DC1, LEFT TRIANGLE
-    0x8EC8, 0x1731, 0x8CE8, 0x1371, // 0x12, DC2, ARROW UP DOWN
-    0x6666, 0x6666, 0x0606, 0x0606, // 0x13, DC3, DOUBLE EXCLAMATION
-    0xEBBE, 0xDDDF, 0x0888, 0x0DDD, // 0x14, DC4, PARAGRAPH
-    0x6C6C, 0x31C7, 0xE3C6, 0x1313, // 0x15, NAK, ?
-    0x0000, 0x0000, 0x0EEE, 0x0777, // 0x16, SYN, HALF SQUARE BOTTOM
-    0x8EC8, 0x1731, 0xF8CE, 0xF137, // 0x17, ETB, ARROW UP DOWN UNDERLINED
-    0x8EC8, 0x1731, 0x0888, 0x0111, // 0x18, CAN, ARROW UP
-    0x8888, 0x1111, 0x08CE, 0x0137, // 0x19, EM, ARROW DOWN
-    0xF080, 0x7310, 0x0080, 0x0013, // 0x1A, SUB, ARROW RIGHT
-    0xF6C0, 0x7000, 0x00C6, 0x0000, // 0x1B, ESC, ARROW LEFT
-    0x3300, 0x0000, 0x00F3, 0x0070, // 0x1C, FS, ?
-    0xF640, 0xF620, 0x0046, 0x0026, // 0x1D, GS, ARROW LEFT RIGHT
-    0xEC80, 0x7310, 0x00FF, 0x00FF, // 0x1E, RS, TRIANGLE UP
-    0xEFF0, 0x7FF0, 0x008C, 0x0013, // 0x1F, US, TRIANGLE DOWN
-    0x0000, 0x0000, 0x0000, 0x0000, // 0x20, SPACE
-    0xCEEC, 0x0110, 0x0C0C, 0x0000, // 0x21, !
-    0x0666, 0x0333, 0x0000, 0x0000, // 0x22, "
-    0x6F66, 0x3733, 0x066F, 0x0337, // 0x23, #
-    0xE3EC, 0x1030, 0x0CF0, 0x0013, // 0x24, $
-    0x8330, 0x1360, 0x036C, 0x0660, // 0x25, %
-    0xEC6C, 0x6131, 0x0E3B, 0x0633, // 0x26, &
-    0x0366, 0x0000, 0x0000, 0x0000, // 0x27, '
-    0x66C8, 0x0001, 0x08C6, 0x0100, // 0x28, (
-    0x88C6, 0x1100, 0x06C8, 0x0001, // 0x29, )
-    0xFC60, 0xF360, 0x006C, 0x0063, // 0x2A, *
-    0xFCC0, 0x3000, 0x00CC, 0x0000, // 0x2B, +
-    0x0000, 0x0000, 0x6CC0, 0x0000, // 0x2C, ,
-    0xF000, 0x3000, 0x0000, 0x0000, // 0x2D, -
-    0x0000, 0x0000, 0x0CC0, 0x0000, // 0x2E, .
-    0xC800, 0x0136, 0x0136, 0x0000, // 0x2F, /
-    0xB33E, 0x7763, 0x0E7F, 0x0366, // 0x30, 0
-    0xCCEC, 0x0000, 0x0FCC, 0x0300, // 0x31, 1
-    0xC03E, 0x1331, 0x0F36, 0x0330, // 0x32, 2
-    0xC03E, 0x1331, 0x0E30, 0x0133, // 0x33, 3
-    0x36C8, 0x3333, 0x080F, 0x0737, // 0x34, 4
-    0x0F3F, 0x3103, 0x0E30, 0x0133, // 0x35, 5
-    0xF36C, 0x1001, 0x0E33, 0x0133, // 0x36, 6
-    0x803F, 0x1333, 0x0CCC, 0x0000, // 0x37, 7
-    0xE33E, 0x1331, 0x0E33, 0x0133, // 0x38, 8
-    0xE33E, 0x3331, 0x0E80, 0x0013, // 0x39, 9
-    0x0CC0, 0x0000, 0x0CC0, 0x0000, // 0x3A, :
-    0x0CC0, 0x0000, 0x6CC0, 0x0000, // 0x3B, ;
-    0x36C8, 0x0001, 0x08C6, 0x0100, // 0x3C, <
-    0x0F00, 0x0300, 0x00F0, 0x0030, // 0x3D, =
-    0x08C6, 0x3100, 0x06C8, 0x0001, // 0x3E, >
-    0x803E, 0x1331, 0x0C0C, 0x0000, // 0x3F, ?
-    0xBB3E, 0x7763, 0x0E3B, 0x0107, // 0x40, @
-    0x33EC, 0x3310, 0x033F, 0x0333, // 0x41, A
-    0xE66F, 0x3663, 0x0F66, 0x0366, // 0x42, B
-    0x336C, 0x0063, 0x0C63, 0x0360, // 0x43, C
-    0x666F, 0x6631, 0x0F66, 0x0136, // 0x44, D
-    0xE66F, 0x1147, 0x0F66, 0x0741, // 0x45, E
-    0xE66F, 0x1147, 0x0F66, 0x0001, // 0x46, F
-    0x336C, 0x0063, 0x0C63, 0x0767, // 0x47, G
-    0xF333, 0x3333, 0x0333, 0x0333, // 0x48, H
-    0xCCCE, 0x0001, 0x0ECC, 0x0100, // 0x49, I
-    0x0008, 0x3337, 0x0E33, 0x0133, // 0x4A, J
-    0xE667, 0x1366, 0x0766, 0x0663, // 0x4B, K
-    0x666F, 0x0000, 0x0F66, 0x0764, // 0x4C, L
-    0xFF73, 0x7776, 0x033B, 0x0666, // 0x4D, M
-    0xBF73, 0x7666, 0x0333, 0x0667, // 0x4E, N
-    0x336C, 0x6631, 0x0C63, 0x0136, // 0x4F, O
-    0xE66F, 0x3663, 0x0F66, 0x0000, // 0x50, P
-    0x333E, 0x3331, 0x08EB, 0x0313, // 0x51, Q
-    0xE66F, 0x3663, 0x0766, 0x0663, // 0x52, R
-    0xE73E, 0x0031, 0x0E38, 0x0133, // 0x53, S
-    0xCCDF, 0x0023, 0x0ECC, 0x0100, // 0x54, T
-    0x3333, 0x3333, 0x0F33, 0x0333, // 0x55, U
-    0x3333, 0x3333, 0x0CE3, 0x0013, // 0x56, V
-    0xB333, 0x6666, 0x037F, 0x0677, // 0x57, W
-    0xC633, 0x1366, 0x036C, 0x0631, // 0x58, X
-    0xE333, 0x1333, 0x0ECC, 0x0100, // 0x59, Y
-    0x813F, 0x1367, 0x0F6C, 0x0764, // 0x5A, Z
-    0x666E, 0x0001, 0x0E66, 0x0100, // 0x5B, [
-    0x8C63, 0x1000, 0x0000, 0x0463, // 0x5C, 
-    0x888E, 0x1111, 0x0E88, 0x0111, // 0x5D, ]
-    0x36C8, 0x6310, 0x0000, 0x0000, // 0x5E, ^
-    0x0000, 0x0000, 0xF000, 0xF000, // 0x5F, _
-    0x08CC, 0x0100, 0x0000, 0x0000, // 0x60, `
-    0x0E00, 0x3100, 0x0E3E, 0x0633, // 0x61, a
-    0xE667, 0x3000, 0x0B66, 0x0366, // 0x62, b
-    0x3E00, 0x3100, 0x0E33, 0x0130, // 0x63, c
-    0xE008, 0x3333, 0x0E33, 0x0633, // 0x64, d
-    0x3E00, 0x3100, 0x0E3F, 0x0103, // 0x65, e
-    0xF66C, 0x0031, 0x0F66, 0x0000, // 0x66, f
-    0x3E00, 0x3600, 0xF0E3, 0x1333, // 0x67, g
-    0xE667, 0x6300, 0x0766, 0x0666, // 0x68, h
-    0xCE0C, 0x0000, 0x0ECC, 0x0100, // 0x69, i
-    0x0000, 0x3303, 0xE330, 0x1333, // 0x6A, j
-    0x6667, 0x3600, 0x076E, 0x0631, // 0x6B, k
-    0xCCCE, 0x0000, 0x0ECC, 0x0100, // 0x6C, l
-    0xF300, 0x7300, 0x03BF, 0x0667, // 0x6D, m
-    0x3F00, 0x3100, 0x0333, 0x0333, // 0x6E, n
-    0x3E00, 0x3100, 0x0E33, 0x0133, // 0x6F, o
-    0x6B00, 0x6300, 0xF6E6, 0x0036, // 0x70, p
-    0x3E00, 0x3600, 0x80E3, 0x7333, // 0x71, q
-    0xEB00, 0x6300, 0x0F66, 0x0006, // 0x72, r
-    0x3E00, 0x0300, 0x0F0E, 0x0131, // 0x73, s
-    0xCEC8, 0x0300, 0x08CC, 0x0120, // 0x74, t
-    0x3300, 0x3300, 0x0E33, 0x0633, // 0x75, u
-    0x3300, 0x3300, 0x0CE3, 0x0013, // 0x76, v
-    0xB300, 0x6600, 0x06FF, 0x0377, // 0x77, w
-    0x6300, 0x3600, 0x036C, 0x0631, // 0x78, x
-    0x3300, 0x3300, 0xF0E3, 0x1333, // 0x79, y
-    0x9F00, 0x1300, 0x0F6C, 0x0320, // 0x7A, z
-    0x7CC8, 0x0003, 0x08CC, 0x0300, // 0x7B, {
-    0x0888, 0x0111, 0x0888, 0x0111, // 0x7C, |
-    0x8CC7, 0x3000, 0x07CC, 0x0000, // 0x7D, }
-    0x00BE, 0x0036, 0x0000, 0x0000, // 0x7E, ~
-    0x6C80, 0x3100, 0x0F33, 0x0766, // 0x7F, DEL, HOUSE
-    0x333E, 0x3031, 0xE08E, 0x1311, // 0x80, Ç
-    0x3030, 0x3030, 0x0E33, 0x0733, // 0x81, ü
-    0x3E08, 0x3103, 0x0E3F, 0x0103, // 0x82, é
-    0x0C3E, 0x63C7, 0x0C6C, 0x0F67, // 0x83, â
-    0x0E03, 0x3103, 0x0E3E, 0x0733, // 0x84, ä
-    0x0E07, 0x3100, 0x0E3E, 0x0733, // 0x85, à
-    0x0ECC, 0x3100, 0x0E3E, 0x0733, // 0x86, å
-    0x3E00, 0x0100, 0xC0E3, 0x1310, // 0x87, ç
-    0x6C3E, 0x63C7, 0x0C6E, 0x0307, // 0x88, ê
-    0x3E03, 0x3103, 0x0E3F, 0x0103, // 0x89, ë
-    0x3E07, 0x3100, 0x0E3F, 0x0103, // 0x8A, è
-    0xCE03, 0x0003, 0x0ECC, 0x0100, // 0x8B, ï
-    0x8C3E, 0x1163, 0x0C88, 0x0311, // 0x8C, î
-    0xCE07, 0x0000, 0x0ECC, 0x0100, // 0x8D, ì
-    0x36C3, 0x6316, 0x033F, 0x0667, // 0x8E, Ä
-    0xE0CC, 0x1000, 0x03F3, 0x0333, // 0x8F, Å
-    0x6F08, 0x0303, 0x0F6E, 0x0301, // 0x90, É
-    0x0E00, 0x3F00, 0x0E3E, 0x0F3F, // 0x91, æ
-    0xF36C, 0x7337, 0x0333, 0x0733, // 0x92, Æ
-    0xE03E, 0x1031, 0x0E33, 0x0133, // 0x93, ô
-    0xE030, 0x1030, 0x0E33, 0x0133, // 0x94, ö
-    0xE070, 0x1000, 0x0E33, 0x0133, // 0x95, ò
-    0x303E, 0x3031, 0x0E33, 0x0733, // 0x96, û
-    0x3070, 0x3000, 0x0E33, 0x0733, // 0x97, ù
-    0x3030, 0x3030, 0xF0E3, 0x1333, // 0x98, ÿ
-    0x6C83, 0x631C, 0x08C6, 0x0136, // 0x99, Ö
-    0x3303, 0x3303, 0x0E33, 0x0133, // 0x9A, Ü
-    0x3E88, 0x0711, 0x88E3, 0x1170, // 0x9B, ¢
-    0xF66C, 0x0231, 0x0F76, 0x0360, // 0x9C, £
-    0xFE33, 0x3133, 0xCCFC, 0x0030, // 0x9D, ¥
-    0xF33F, 0x5331, 0x3333, 0xE6F6, // 0x9E, ₧
-    0xC880, 0x31D7, 0xEB88, 0x0111, // 0x9F, ƒ
-    0x0E08, 0x3103, 0x0E3E, 0x0733, // 0xA0, á
-    0xCE0C, 0x0001, 0x0ECC, 0x0100, // 0xA1, í
-    0xE080, 0x1030, 0x0E33, 0x0133, // 0xA2, ó
-    0x3080, 0x3030, 0x0E33, 0x0733, // 0xA3, ú
-    0xF0F0, 0x1010, 0x0333, 0x0333, // 0xA4, ñ
-    0x730F, 0x3303, 0x03BF, 0x0333, // 0xA5, Ñ
-    0xC66C, 0x7333, 0x00E0, 0x0070, // 0xA6, ª
-    0xC66C, 0x1331, 0x00E0, 0x0030, // 0xA7, º
-    0x6C0C, 0x0000, 0x0E33, 0x0130, // 0xA8, ¿
-    0xF000, 0x3000, 0x0033, 0x0000, // 0xA9, ⌐
-    0xF000, 0x3000, 0x0000, 0x0033, // 0xAA, ¬
-    0xB333, 0x736C, 0x036C, 0xF36C, // 0xAB, ½
-    0xB333, 0xD36C, 0x036C, 0xCFFE, // 0xAC, ¼
-    0x8088, 0x1011, 0x0888, 0x0111, // 0xAD, ¡
-    0x36C0, 0x36C0, 0x00C6, 0x00C6, // 0xAE, «
-    0xC630, 0xC630, 0x0036, 0x0036, // 0xAF, »
-    0x1414, 0x1414, 0x1414, 0x1414, // 0xB0, ░
-    0x5A5A, 0x5A5A, 0x5A5A, 0x5A5A, // 0xB1, ▒
-    0xBEBE, 0xBEBE, 0xBEBE, 0xBEBE, // 0xB2, ▓
-    0x8888, 0x1111, 0x8888, 0x1111, // 0xB3, │
-    0x8888, 0x1111, 0x888F, 0x1111, // 0xB4, ┤
-    0x8F88, 0x1111, 0x888F, 0x1111, // 0xB5, ╡
-    0xCCCC, 0x6666, 0xCCCF, 0x6666, // 0xB6, ╢
-    0x0000, 0x0000, 0xCCCF, 0x6667, // 0xB7, ╖
-    0x8F00, 0x1100, 0x888F, 0x1111, // 0xB8, ╕
-    0x0FCC, 0x6666, 0xCCCF, 0x6666, // 0xB9, ╣
-    0xCCCC, 0x6666, 0xCCCC, 0x6666, // 0xBA, ║
-    0x0F00, 0x6700, 0xCCCF, 0x6666, // 0xBB, ╗
-    0x0FCC, 0x6666, 0x000F, 0x0007, // 0xBC, ╝
-    0xCCCC, 0x6666, 0x000F, 0x0007, // 0xBD, ╜
-    0x8F88, 0x1111, 0x000F, 0x0001, // 0xBE, ╛
-    0x0000, 0x0000, 0x888F, 0x1111, // 0xBF, ┐
-    0x8888, 0x1111, 0x0008, 0x000F, // 0xC0, └
-    0x8888, 0x1111, 0x000F, 0x000F, // 0xC1, ┴
-    0x0000, 0x0000, 0x888F, 0x111F, // 0xC2, ┬
-    0x8888, 0x1111, 0x8888, 0x111F, // 0xC3, ├
-    0x0000, 0x0000, 0x000F, 0x000F, // 0xC4, ─
-    0x8888, 0x1111, 0x888F, 0x111F, // 0xC5, ┼
-    0x8888, 0x1F11, 0x8888, 0x111F, // 0xC6, ╞
-    0xCCCC, 0x6666, 0xCCCC, 0x666E, // 0xC7, ╟
-    0xCCCC, 0x0E66, 0x000C, 0x000F, // 0xC8, ╚
-    0xCC00, 0x0F00, 0xCCCC, 0x666E, // 0xC9, ╔
-    0x0FCC, 0x0E66, 0x000F, 0x000F, // 0xCA, ╩
-    0x0F00, 0x0F00, 0xCCCF, 0x666E, // 0xCB, ╦
-    0xCCCC, 0x0E66, 0xCCCC, 0x666E, // 0xCC, ╠
-    0x0F00, 0x0F00, 0x000F, 0x000F, // 0xCD, ═
-    0x0FCC, 0x0E66, 0xCCCF, 0x666E, // 0xCE, ╬
-    0x0F88, 0x0F11, 0x000F, 0x000F, // 0xCF, ╧
-    0xCCCC, 0x6666, 0x000F, 0x000F, // 0xD0, ╨
-    0x0F00, 0x0F00, 0x888F, 0x111F, // 0xD1, ╤
-    0x0000, 0x0000, 0xCCCF, 0x666F, // 0xD2, ╥
-    0xCCCC, 0x6666, 0x000C, 0x000F, // 0xD3, ╙
-    0x8888, 0x1F11, 0x0008, 0x000F, // 0xD4, ╘
-    0x8800, 0x1F00, 0x8888, 0x111F, // 0xD5, ╒
-    0x0000, 0x0000, 0xCCCC, 0x666F, // 0xD6, ╓
-    0xCCCC, 0x6666, 0xCCCF, 0x666F, // 0xD7, ╫
-    0x8F88, 0x1F11, 0x888F, 0x111F, // 0xD8, ╪
-    0x8888, 0x1111, 0x000F, 0x0001, // 0xD9, ┘
-    0x0000, 0x0000, 0x8888, 0x111F, // 0xDA, ┌
-    0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, // 0xDB, █
-    0x0000, 0x0000, 0xFFFF, 0xFFFF, // 0xDC, ▄
-    0xFFFF, 0x0000, 0xFFFF, 0x0000, // 0xDD, ▌
-    0x0000, 0xFFFF, 0x0000, 0xFFFF, // 0xDE, ▐
-    0xFFFF, 0xFFFF, 0x0000, 0x0000, // 0xDF, ▀
-    0xBE00, 0x3600, 0x0EB3, 0x0631, // 0xE0, α
-    0xF3E0, 0x1310, 0x33F3, 0x0013, // 0xE1, ß
-    0x33F0, 0x0330, 0x0333, 0x0000, // 0xE2, Γ
-    0x66F0, 0x3370, 0x0666, 0x0333, // 0xE3, π
-    0xC63F, 0x0033, 0x0F36, 0x0330, // 0xE4, Σ
-    0xBE00, 0x1700, 0x0EBB, 0x0011, // 0xE5, σ
-    0x6660, 0x6660, 0x36E6, 0x0036, // 0xE6, µ
-    0x8BE0, 0x1360, 0x0888, 0x0111, // 0xE7, τ
-    0x3ECF, 0x3103, 0xFCE3, 0x3013, // 0xE8, Φ
-    0xF36C, 0x7631, 0x0C63, 0x0136, // 0xE9, Θ
-    0x336C, 0x6631, 0x0766, 0x0733, // 0xEA, Ω
-    0xE8C8, 0x3103, 0x0E33, 0x0133, // 0xEB, δ
-    0xBE00, 0xD700, 0x00EB, 0x007D, // 0xEC, ∞
-    0xBE00, 0xD736, 0x36EB, 0x007D, // 0xED, φ
-    0xF36C, 0x1001, 0x0C63, 0x0100, // 0xEE, ε
-    0x333E, 0x3331, 0x0333, 0x0333, // 0xEF, ∩
-    0xF0F0, 0x3030, 0x00F0, 0x0030, // 0xF0, ≡
-    0xCFCC, 0x0300, 0x0F0C, 0x0300, // 0xF1, ±
-    0xC8C6, 0x0100, 0x0F06, 0x0300, // 0xF2, ≥
-    0xC6C8, 0x0001, 0x0F08, 0x0301, // 0xF3, ≤
-    0x8880, 0x1DD7, 0x8888, 0x1111, // 0xF4, ⌠
-    0x8888, 0x1111, 0xEBB8, 0x0111, // 0xF5, ⌡
-    0xF0CC, 0x3000, 0x0CC0, 0x0000, // 0xF6, ÷
-    0x0BE0, 0x0360, 0x00BE, 0x0036, // 0xF7, ≈
-    0xC66C, 0x1331, 0x0000, 0x0000, // 0xF8, °
-    0x8000, 0x1000, 0x0008, 0x0001, // 0xF9, ∙
-    0x0000, 0x0000, 0x0008, 0x0001, // 0xFA, ·
-    0x0000, 0x333F, 0x8C67, 0x3333, // 0xFB, √
-    0x666E, 0x3331, 0x0006, 0x0003, // 0xFC, ⁿ
-    0x6C8E, 0x0010, 0x000E, 0x0001, // 0xFD, ²
-    0xCC00, 0x3300, 0x00CC, 0x0033, // 0xFE, ■
-    0x0000, 0x0000, 0x0000, 0x0000, // 0xFF, NBSP
-};
-
-const int charsets[] = {
-    0x30, 10, // NUMBERS
-    0x41, 26, // UPPERCASE LETTERS
-    0x61, 26, // LOWERCASE LETTERS
-    0x01, 15, // SYMBOLS
-    0x18, 4, // ARROWS
-    0xB3, 40, // BARS
-    0xE0, 16, // GREEK
-    0x80, 28, // ACCENTS
-    0xB0, 3, // SHADES
-};
-
-#define CHARSETS 8
-
-const int hex_chars[] = {
-    0x30,
-    0x31,
-    0x32,
-    0x33,
-    0x34,
-    0x35,
-    0x36,
-    0x37,
-    0x38,
-    0x39,
-    0x41,
-    0x42,
-    0x43,
-    0x44,
-    0x45,
-    0x46,
-};
-
-bool char(vec2 pos, int code)
-{
-    if (pos.x < 0.0 || pos.y < 0.0 || pos.x >= 1.0 || pos.y >= 1.0) {
-        return false;
-    }
-    ivec2 pos2 = ivec2(pos.x * 8.0, (1 - pos.y) * 8.0);
-    ivec2 subpos = pos2 % 4;
-    int v = int(pow(2, subpos.y * 4 + subpos.x));
-    int d = int(pos2.y * 0.25) * 2 + int(pos2.x * 0.25);
-    return (cp437[code * 4 + d] & v) > 0;
-}
-
-float char_at(vec2 uv, vec2 pos, int code)
-{
-    return char(uv - pos, code) ? 1 : 0;
-}
-
-float write_5(vec2 uv, vec2 pos, int str[5])
-{
-    float d = 0;
-    int i;
-
-    for (i = 0; i < 5; i++) {
-        if (str[i] == 0) {
-            return d;
-        }
-
-        d += char_at(uv, pos + vec2(i, 0), str[i]);
-    }
-
-    return d;
-}
-
-float write_10(vec2 uv, vec2 pos, int str[10])
-{
-    float d = 0;
-    int i;
-
-    for (i = 0; i < 10; i++) {
-        if (str[i] == 0) {
-            return d;
-        }
-
-        d += char_at(uv, pos + vec2(i, 0), str[i]);
-    }
-
-    return d;
-}
-
-float write_20(vec2 uv, vec2 pos, int str[20])
-{
-    float d = 0;
-    int i;
-
-    for (i = 0; i < 20; i++) {
-        if (str[i] == 0) {
-            return d;
-        }
-
-        d += char_at(uv, pos + vec2(i, 0), str[i]);
-    }
-
-    return d;
-}
-
-float write_int(vec2 uv, vec2 pos, uint value, uint magnitude)
-{
-    int i;
-    uint m = 1;
-    float d = 0;
-    for (i = 0; i < magnitude; i++) {
-        if (i == 0 || value >= m) {
-            d += char_at(uv, pos + vec2(magnitude - i - 1, 0), int(0x30 + (value % (m * 10u)) / m));
-            m *= 10u;
-        }
-    }
-    return d;
-}
-
-int read(sampler2D tex, vec2 uv, float k, int d, float t)
-{
-    float inv_k = 1 / k;
-    vec2 tex_uv = floor(uv * k) * inv_k;
-    tex_uv += vec2(d % 2, floor(d * 0.5)) * 0.5 * inv_k;
-    return
-        ((mean(reframe(tex, tex_uv + vec2(0, 3) * inv_k * 0.125)) > t) ? 1 : 0) + 
-        ((mean(reframe(tex, tex_uv + vec2(0, 2) * inv_k * 0.125)) > t) ? 2 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(0, 1) * inv_k * 0.125)) > t) ? 4 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(0, 0) * inv_k * 0.125)) > t) ? 8 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(1, 3) * inv_k * 0.125)) > t) ? 16 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(1, 2) * inv_k * 0.125)) > t) ? 32 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(1, 1) * inv_k * 0.125)) > t) ? 64 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(1, 0) * inv_k * 0.125)) > t) ? 128 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(2, 3) * inv_k * 0.125)) > t) ? 256 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(2, 2) * inv_k * 0.125)) > t) ? 512 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(2, 1) * inv_k * 0.125)) > t) ? 1024 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(2, 0) * inv_k * 0.125)) > t) ? 2048 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(3, 3) * inv_k * 0.125)) > t) ? 4096 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(3, 2) * inv_k * 0.125)) > t) ? 8192 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(3, 1) * inv_k * 0.125)) > t) ? 16384 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(3, 0) * inv_k * 0.125)) > t) ? 32768 : 0);
-}
-
-// https://web.archive.org/web/20151229003112/http://blogs.msdn.com/b/jeuge/archive/2005/06/08/hakmem-bit-count.aspx
-int bit_count(int u)                         
-{
-        int c;
-        c = u - ((u >> 1) & 033333333333) - ((u >> 2) & 011111111111);
-        return ((c + (c >> 3)) & 030707070707) % 63;
-}
-
-int guess_char(sampler2D tex, vec2 uv, float k, float t)
-{
-    int b0 = read(tex, uv, k, 0, t);
-    int b1 = read(tex, uv, k, 1, t);
-    int b2 = read(tex, uv, k, 2, t);
-    int b3 = read(tex, uv, k, 3, t);
-    
-    int mc = 0;
-    int mb = 100;
-    int i;
-    int b;
-
-    for (i = 0x01; i <= 0xFF; i++) {
-        if (i == 0x20 || i == 0xff || i == 0xDB) {
-            continue;
-        }
-        b = bit_count(cp437[i * 4] ^ b0) + bit_count(cp437[i * 4 + 1] ^ b1) + bit_count(cp437[i * 4 + 2] ^ b2) +  + bit_count(cp437[i * 4 + 3] ^ b3);
-        if (b < mb) {
-            mb = b;
-            mc = i;
-        }
-    }
-
-    return mc;
-}
-
-// 5. generators
-// -------------
-
-subroutine vec4 src_stage_sub(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3);
-
-subroutine uniform src_stage_sub src_stage;
-
-vec4 src_thru(vec2 vUV, sampler2D tex, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
-{
-    // start
-
-	vec2 uv0 = vUV.st;
-
-    // controls
-
-    float hue = magic(f1, b1, seed + 10);
-    float saturation = magic(f2, b2, seed + 20);
-    float light = magic(f3, b3, seed + 30);
-
-    // logic
-
-    vec3 c = texture(tex, uv0).xyz;
-
-    c = shift3(c, hue);
-
-    c *= 1 + saturation;
-    c = mix(c + light * 2.0, c - (1 - light) * 2.0, step(0.5, light));
-
-    // output
-
-   return vec4(c, 1.);
-}
-
-// SRC 1: feedback + thru
-subroutine(src_stage_sub) vec4 src_1(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
-{
-    return src_thru(vUV, iTex0, seed, b1, f1, b2, f2, b3, f3);
-}
-
-// SRC 2 : lines
-subroutine(src_stage_sub) vec4 src_2(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
-{
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    float thickness = magic(f1, b1, seed + 10);
-    float rotation = magic(f2, b2, seed + 20);
-    float distort = magic(f3, b3, seed + 30);
-
-    // logic
-
-    vec2 uv2 = uv1;
-    uv2.y *= cos(uv2.x * 5 * distort);
-    uv2 *= rot(rotation + iBeats / 16);
-    float k = thickness * 2;
-    uv2.y = cmod(uv2.y, k * 2 + 0.1);
-    float f = step(uv2.y, k * 0.125 + 0.05) * step(-uv2.y, k * 0.125 + 0.01);
-    
-    return vec4(f);
-}
-
-// SRC 3 : dots
-subroutine(src_stage_sub) vec4 src_3(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
-{
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    float zoom = magic(f1, b1, seed + 10);
-    float rotation = magic(f2, b2, seed + 20);
-    float lens_v = magic(f3, b3, seed + 30);
-
-    // logic
-
-    vec2 uv2 = uv1;
-    float k1 = lens_v * 5;
-    uv2 = lens(uv2, -k1, k1);
-    uv2 = kal(uv2, 5);
-    uv2 *= rot(rotation + iBeats / 16);
-    float k = zoom * 0.1 + 0.05;
-    uv2 = cmod(uv2, k * 2);
-    float f = step(length(uv2), k / (1 + length(uv1) * 2));
-    
-    return vec4(f);
-}
-
-// SRC 4 : waves
-subroutine(src_stage_sub) vec4 src_4(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
-{
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    float spacing = magic(f1, b1, seed + 10);
-    float thickness = magic(f2, b2, seed + 20);
-    float scroll = magic_reverse(f3, b3, seed + 30);
-
-    // logic
-
-    vec2 uv2 = uv1;
-    uv2.y += 0.5;
-    uv2 *= 2.25;
-    uv2 = vec2((uv2.x + 1) * 0.5, -uv2.y);
-    float m1 = spacing * 4.5 + 0.5;
-    float y = log(-uv2.y) * m1;
-    y = mod(y + scroll * 5.0 - iBeats / 16, 5.);
-    float id = floor(y) * 32;
-    float s = cos(uv2.x * rand(id + 837) * 100 + rand(id + 281) * PI)
-                + cos(uv2.x * rand(id + 231) * 100 + rand(id + 526) * PI)
-                + cos(uv2.x * rand(id + 746) * 100 + rand(id + 621) * PI)
-                + cos(uv2.x * rand(id + 235) * 100 + rand(id + 315) * PI)
-                + cos(uv2.x * rand(id + 782) * 100 + rand(id + 314) * PI)
-                + cos(uv2.x * rand(id + 241) * 100 + rand(id + 734) * PI)
-                + cos(uv2.x * rand(id + 416) * 100 + rand(id + 425) * PI)
-                + cos(uv2.x * rand(id + 315) * 100 + rand(id + 525) * PI)
-                + cos(uv2.x * rand(id + 423) * 100 + rand(id + 743) * PI)
-                + cos(uv2.x * rand(id + 637) * 100 + rand(id + 245) * PI);
-    s *= 0.1;
-    float cut =  0.025 + thickness * 0.475;
-    float y2 = min(1.0, -(uv2.y));
-    float f = (0.1 + 0.9 * (cos((y2 + 1.0) * PI) * 0.5 + 0.5)) * step(uv2.y, 0.) * step(fract(y + (s - 1) * (1 - cut) * 0.5), cut);//step(uv2.y, 0.) * mod(-uv2.y * 1.0, 1.0);
-    
-    return vec4(f);
-}
-
-// SRC 5 : noise
-subroutine(src_stage_sub) vec4 src_5(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
-{
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    float zoom = magic(f1, b1, seed + 10);
-    float voronoi_distort = magic(f2, b2, seed + 20);
-    float details = magic(f3, b3, seed + 30);
-    float noise_factor = magic(seed + 40);
-
-    // logic
-
-    vec2 uv2 = uv1;
-    uv2 *= zoom * 20 + 3;
-    uv2.x += iBeats;
-    vec4 data = voronoi(uv2, voronoi_distort);
-    float f = data.x / (data.x + data.y);
-    f = sin(f * PI * (details * 20)) * 0.5 + 1;
-    int nf = int(noise_factor * 6);
-    f *= mix(1, noise_f(uv2, nf - 1), step(0.0, float(nf)));
-    
-    return vec4(f);
-}
-
-// SRC 6 : video in 1 + thru
-subroutine(src_stage_sub) vec4 src_6(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
-{
-    return src_thru(vUV, iTex3, seed, b1, f1, b2, f2, b3, f3);
-}
-
-// SRC 7 : cp437
-subroutine(src_stage_sub) vec4 src_7(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
-{
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    float zoom = magic(f1, b1, seed + 10);
-    vec2 charset = magic_f(f2, b2, seed + 20);
-    vec3 charset_ctrl = magic_b(b2, seed + 20);
-    float char_delta = magic(f3, b3, seed + 30);
-
-    // logic
-
-    vec2 uv2 = uv1;
-    uv2 *= zoom * 20 + 3;
-    uv2 += iBeats;
-    uv2 = mod(uv2, 100) + 100;
-    int start_char = charset_ctrl.x > 0 ? charsets[int(charset.x * CHARSETS) * 2] : 0x01;
-    int char_span = int((charset_ctrl.x > 0 ? charsets[int(charset.x * CHARSETS) * 2 + 1] : 255));
-    char_span = int(char_span * max(1 - charset.y, 1 / (char_span * 0.75)));
-    ivec2 uv2i = ivec2(uv2);
-    int code = ((charset_ctrl.y < 1 || (uv2i.x % 2 ^ uv2i.y % 2) > 0) ? 1 : 0) * (start_char + int((rand(uv2i) + char_delta) * char_span) % char_span);
-    uv2 = mod(uv2, 1);
-    float f = char(uv2, code) ? 1 : 0;
-    
-    return vec4(f);
-}
-
-// SRC 8 : sentences
-#define SENTENCE_COUNT 16
-
-const int sentences[SENTENCE_COUNT][20] = {
-    {102, 111, 114, 103, 101, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
-    {70, 79, 82, 71, 69, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
-    {70, 46, 79, 46, 82, 46, 71, 46, 69, 46, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
-    {70, 117, 115, 105, 111, 110, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
-    {79, 102, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
-    {82, 101, 97, 108, 45, 116, 105, 109, 101, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
-    {71, 101, 110, 101, 114, 97, 116, 105, 118, 101, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
-    {69, 102, 102, 101, 99, 116, 115, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
-    {69, 118, 101, 114, 121, 116, 104, 105, 110, 103, 32, 121, 111, 117, 32, 115, 101, 101, 0, 0},
-    {80, 105, 120, 101, 108, 32, 98, 121, 32, 112, 105, 120, 101, 108, 0, 0, 0, 0, 0, 0},
-    {76, 105, 118, 101, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
-    {71, 101, 110, 101, 114, 97, 116, 101, 100, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
-    {67, 111, 110, 116, 114, 111, 108, 108, 101, 100, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
-    {67, 111, 100, 101, 32, 97, 115, 32, 97, 114, 116, 0, 0, 0, 0, 0, 0, 0, 0, 0},
-    {65, 114, 116, 32, 97, 115, 32, 99, 111, 100, 101, 0, 0, 0, 0, 0, 0, 0, 0, 0},
-    {75, 108, 101, 960, 101, 107, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
-};
-
-
-const int lengths[SENTENCE_COUNT] = {
-    5, 5, 10, 6, 2, 9, 10, 7, 18, 14, 4, 9, 10, 11, 11, 6
-};
-
-subroutine(src_stage_sub) vec4 src_8(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
-{
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    float zoom = magic(f1, b1, seed + 10);
-    float sentence = magic_reverse(f2, b2, seed + 20);
-    float h_delta = magic(f3, b3, seed + 30);
-    vec3 h_delta_b = magic_b(b3, seed + 30);
-
-    // logic
-
-    vec2 uv2 = uv1;
-    uv2 *= (1 + zoom) * 12;
-    int s = int(sentence * (SENTENCE_COUNT - 1));
-    uv2.x += floor(uv2.y) * (h_delta - 0.5) * 2;
-    uv2.y = mix(uv2.y, mod(uv2.y, 1), h_delta_b.x);
-    float f = write_20(uv2, vec2(-float(lengths[s]) * 0.5, 0), sentences[s]);
-    
-    return vec4(f);
-}
-
-// TODO SRC 9
-subroutine(src_stage_sub) vec4 src_9(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
-{
-    return src_2(vUV, seed, b1, f1, b2, f2, b3, f3);
-
-    // start
-
-    vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    // logic
-    
-    return texture(iTex0, vUV);
-}
-
-// TODO SRC 10
-subroutine(src_stage_sub) vec4 src_10(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
-{
-    return src_3(vUV, seed, b1, f1, b2, f2, b3, f3);
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    // logic
-    
-    return texture(iTex0, vUV);
-}
-
-// SRC 11 : video in 2 + thru
-subroutine(src_stage_sub) vec4 src_11(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
-{
-    return src_thru(vUV, iTex4, seed, b1, f1, b2, f2, b3, f3);
-}
-
-// TODO SRC 12
-subroutine(src_stage_sub) vec4 src_12(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
-{
-    return src_4(vUV, seed, b1, f1, b2, f2, b3, f3);
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    // logic
-    
-    return texture(iTex0, vUV);
-}
-
-// TODO SRC 13
-subroutine(src_stage_sub) vec4 src_13(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
-{
-    return src_5(vUV, seed, b1, f1, b2, f2, b3, f3);
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    // logic
-    
-    return texture(iTex0, vUV);
-}
-
-// TODO SRC 14
-subroutine(src_stage_sub) vec4 src_14(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
-{
-    return src_7(vUV, seed, b1, f1, b2, f2, b3, f3);
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    // logic
-    
-    return texture(iTex0, vUV);
-}
-
-// SRC 15 : debug
-subroutine(src_stage_sub) vec4 src_15(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
-{
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // inputs
-
-    int selected_srca = iState3 - 1;
-    int selected_srcb = iState4 - 1;
-    int selected_fxa = iState5 - 1;
-    int selected_fxb = iState6 - 1;
-    int selected_mfx = iState8 - 1;
-    float fxa_value = magic(iMidi2_1[6].xy, vec3(1, 0, 0), iSeed5);
-    bool fxa_invert = magic_trigger(vec3(iMidi2_1[6].z, 0, 0), iSeed5);
-    float fxb_value = magic(iMidi2_2[6].xy, vec3(1, 0, 0), iSeed6);
-    bool fxb_invert = magic_trigger(vec3(iMidi2_2[6].z, 0, 0), iSeed6);
-    float mfx_value = magic(iMidi2_3[6].xy, vec3(1, 0, 0), iSeed8);
-    bool mfx_invert = magic_trigger(vec3(iMidi2_3[6].z, 0, 0), iSeed8);
-    float mix_value = magic(iMidi3_1[1].xy, vec3(1, 0, 0), iSeed7);
-    bool mix_type = magic_trigger(vec3(iMidi3_1[0].x, 0, 0), iSeed7 + 10);
-
-    // logic
-
-    const int texts[6][5] = {
-        {0x46, 0x50, 0x53, 0x00, 0x00}, // FPS
-        {0x54, 0x45, 0x4D, 0x50, 0x4F}, // TEMPO
-        {0x54, 0x49, 0x4D, 0x45, 0x00}, // TIME
-        {0x44, 0x45, 0x4D, 0x4F, 0x00}, // DEMO
-        {0x4C, 0x49, 0x56, 0x45, 0x00}, // LIVE
-        {0x2B, 0x52, 0x41, 0x4E, 0x44}, // +RAND
-    };
-
-    vec2 uv2 = uv1;
-
-    uv2 *= 10;
-    uv2.x -= 0.5;
-    uv2.y += 0.5;
-
-    vec2 uv3 = uv1 * 30;
-
-    // base frame
-    float f = 
-        h_rect(uv2, vec2(-5, -2), vec2(1), 0.1) +
-        h_rect(uv2, vec2(-2, -2), vec2(1), 0.1) +
-        rect(uv2, vec2(-3.5, -2), vec2(0.5, 0.1)) +
-        h_rect(uv2, vec2(-5, 2), vec2(1), 0.1) +
-        h_rect(uv2, vec2(-2, 2), vec2(1), 0.1) +
-        rect(uv2, vec2(-3.5, 2), vec2(0.5, 0.1)) +
-        h_rect(uv2, vec2(2, 0), vec2(1), 0.1) +
-        h_rect(uv2, vec2(5, 0), vec2(1), 0.1) +
-        rect(uv2, vec2(3.5, 0), vec2(0.5, 0.1)) +
-        rect(uv2, vec2(0.55, -2), vec2(1.5, 0.1)) +
-        rect(uv2, vec2(2, -1.55), vec2(0.1, 0.55)) +
-        rect(uv2, vec2(0.55, 2), vec2(1.5, 0.1)) +
-        rect(uv2, vec2(2, 1.55), vec2(0.1, 0.55)) +
-        rect(uv2, vec2(7.5, 0), vec2(1.5, 0.1)) +
-        h_rect(uv2, vec2(-9, -3.9), vec2(1), 0.1);
-
-    // show selected src/fx
-    f += char_at(uv2, vec2(-5.4, 1.45), hex_chars[selected_srca]);
-    f += char_at(uv2, vec2(-5.4, -2.55), hex_chars[selected_srcb]);
-    f += char_at(uv2, vec2(-2.4, 1.45), hex_chars[selected_fxa]);
-    f += fxa_invert ? rect(uv2, vec2(-2, 2.7), vec2(0.5, 0.05)) : 0;
-    f += char_at(uv2, vec2(-2.4, -2.55), hex_chars[selected_fxb]);
-    f += fxb_invert ? rect(uv2, vec2(-2, -1.3), vec2(0.5, 0.05)) : 0;
-    f += char_at(uv2, vec2(4.6, -0.55), hex_chars[selected_mfx]);
-    f += mfx_invert ? rect(uv2, vec2(5, 0.7), vec2(0.5, 0.05)) : 0;
-
-    // show current selected
-    f += iSelected == 3 ? h_rect(uv2, vec2(-5, 2), vec2(1.2), 0.1) : 0;
-    f += iSelected == 4 ? h_rect(uv2, vec2(-5, -2), vec2(1.2), 0.1) : 0;
-    f += iSelected == 5 ? h_rect(uv2, vec2(-2, 2), vec2(1.2), 0.1) : 0;
-    f += iSelected == 6 ? h_rect(uv2, vec2(-2, -2), vec2(1.2), 0.1) : 0;
-    f += iSelected == 8 ? h_rect(uv2, vec2(5, 0), vec2(1.2), 0.1) : 0;
-
-    // show selected src/fx
-    f += iActive1 == 1 ? h_rect(uv2, vec2(-5, 0.8), vec2(1, 0), 0.1) : 0;
-    f += iActive1 == 2 ? h_rect(uv2, vec2(-5, -3.2), vec2(1, 0), 0.1) : 0;
-    f += iActive2 == 1 ? h_rect(uv2, vec2(-2, 0.8), vec2(1.2, 0), 0.1) : 0;
-    f += iActive2 == 2 ? h_rect(uv2, vec2(-2, -3.2), vec2(1, 0), 0.1) : 0;
-    f += iActive2 == 3 ? h_rect(uv2, vec2(5, -1.2), vec2(1, 0), 0.1) : 0;
-
-    // show inputs / feedback
-    float line_a_a = rect(uv2, vec2(-8, 2), vec2(2, 0.1));
-    float line_a_b = rect(uv2, vec2(-7, 2), vec2(1, 0.1)) + rect(uv2, vec2(-8, 0.5), vec2(0.1, 1.6)) + rect(uv2, vec2(-9, -1), vec2(1, 0.1));
-    float line_a_f = rect(uv2, vec2(-6.5, 2), vec2(0.5, 0.1)) + rect(uv2, vec2(0, 4), vec2(7, 0.1)) + rect(uv2, vec2(-7, 3), vec2(0.1, 1.1)) + rect(uv2, vec2(7, 2), vec2(0.1, 2.1));
-    if (selected_srca == 5 && iInputFormat1 == YUYV_FOURCC) {
-        f += iInputResolution1.x > 0 ? line_a_a : line_a_f;
-    } else if (selected_srca == 10 && iInputFormat2 == YUYV_FOURCC) {
-        f += iInputResolution2.x > 0 ? line_a_b : line_a_f;
-    } else if (selected_srca % 5 == 0) {
-        f += line_a_f;
-    }
-    float line_b_a = rect(uv2, vec2(-6.5, -2), vec2(0.5, 0.1)) + rect(uv2, vec2(-7, -0.5), vec2(0.1, 1.6)) + rect(uv2, vec2(-8.5, 1), vec2(1.5, 0.1));
-    float line_b_b = rect(uv2, vec2(-8, -2), vec2(2, 0.1));
-    float line_b_f = rect(uv2, vec2(-6.5, -2), vec2(0.5, 0.1)) + rect(uv2, vec2(0, -4), vec2(7, 0.1)) + rect(uv2, vec2(-7, -3), vec2(0.1, 1.1)) + rect(uv2, vec2(7, -2), vec2(0.1, 2.1));
-    if (selected_srcb == 5 && iInputFormat1 == YUYV_FOURCC) {
-        f += iInputResolution1.x > 0 ? line_b_a : line_b_f;
-    } else if (selected_srcb == 10 && iInputFormat2 == YUYV_FOURCC) {
-        f += iInputResolution2.x > 0 ? line_b_b : line_b_f;
-    } else if (selected_srcb % 5 == 0) {
-        f += line_b_f;
-    }
-
-    // show page
-    f += char_at(uv2, vec2(-9.2, -4.3), hex_chars[iPage]);
-
-    // show fx values
-    float fx_rect = 0;
-
-    f = mix(f, 1 - f, rect(uv2, vec2(-2, 1.1 + 0.9 * fxa_value), vec2(0.9, 0.9 * fxa_value)));
-    f = mix(f, 1 - f, rect(uv2, vec2(-2, -2.9 + 0.9 * fxb_value), vec2(0.9, 0.9 * fxb_value)));
-    f = mix(f, 1 - f, rect(uv2, vec2(5, -0.9 + 0.9 * mfx_value), vec2(0.9, 0.9 * mfx_value)));
-
-    // show mix
-    f += char_at(uv2, vec2(1.55, -0.6), mix_type ? 0x4B : 0x4D);
-    f = mix(f, 1 - f, rect(uv2, vec2(2, -0.9 + 0.9 * mix_value), vec2(0.9, 0.9 * mix_value)));
-
-    // show debug info
-    float v = 0;
-    float x = 0;
-
-    x = -15;
-    f += write_5(uv3, vec2(x,13), texts[0]);
-    f += write_int(uv3, vec2(x - 3.5,13), iFPS, 3);
-    v = min(1, iFPS/60.0);
-    f += h_rect(uv3, vec2(x, 12), vec2(4, 0.5), 0.2);
-    f += rect(uv3, vec2(x + 4 * v - 4, 12), vec2(4 * v, 0.4));
-    
-    x = 0;
-    f += write_5(uv3, vec2(x,13), texts[1]);
-    f += write_int(uv3, vec2(x - 3.5,13), int(iTempo), 3);
-    v = fract(iBeats);
-    f += h_rect(uv3, vec2(x, 12), vec2(4, 0.5), 0.2);
-    f += rect(uv3, vec2(x + 4 * v - 4, 12), vec2(4 * v, 0.4));
-
-    x = 15;
-    f += write_5(uv3, vec2(x,13), texts[2]);
-    f += write_int(uv3, vec2(x - 5.5,13), int(iTime), 5);
-    v = fract(iTime);
-    f += h_rect(uv3, vec2(x, 12), vec2(4, 0.5), 0.2);
-    f += rect(uv3, vec2(x + 4 * v - 4, 12), vec2(4 * v, 0.4));
-
-    if (iAutoRand > 0) {
-        f += write_5(uv3, vec2(-4,-15), iDemo > 0 ? texts[3] : texts[4]);
-        f += write_5(uv3, vec2(0,-15), texts[5]);
-    } else {
-        f += write_5(uv3, vec2(-2,-15), iDemo > 0 ? texts[3] : texts[4]);
-    }
-
-    return vec4(f);
-}
-
-// 6. effects
-// ----------
-
-vec4 fx_master(vec3 c0, vec3 c, int seed, vec3 m0) {
-    float fx = magic(m0.xy, vec3(1,0,0), seed);
-    bool invert = magic_trigger(vec3(m0.z, 0, 0), seed);
-
-    vec3 c_out = mix(c0, c, fx);
-
-    c_out = mix(c_out, 1 - c_out, invert ? 1 : 0);
-
-    return vec4(c_out, 1.0);
-}
-
-subroutine vec4 fx_stage_sub(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0);
-
-subroutine uniform fx_stage_sub fx_stage;
-
-// FX 1 : thru
-subroutine(fx_stage_sub) vec4 fx_1(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
-{
-    // start
-
-	vec2 uv0 = vUV.st;
-
-    // controls
-
-    float hue = magic(f1, b1, seed + 10);
-    float saturation = magic(f2, b2, seed + 20);
-    float light = magic(f3, b3, seed + 30);
-
-    // logic
-
-    vec3 c0 = texture(previous, uv0).xyz;
-    vec3 c = c0;
-    c = shift3(c, hue);
-    c *= 1 + saturation;
-    c = mix(c + light * 2.0, c - (1 - light) * 2.0, step(0.5, light));
-
-    return fx_master(c0, c, seed, m0);
-}
-
-// FX 2 : feedback + shift
-vec4 fx_shift(vec2 vUV, sampler2D src0, sampler2D src1, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
-{
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    float zoom = magic(f1, b1, seed + 10);
-    float x_shift = magic(f2, b2, seed + 20);
-    float y_shift = magic(f3, b3, seed + 30);
-
-    // logic
-    
-    vec3 c0 = texture(src0, uv0).xyz;
-    
-    vec2 uv2 = uv1;
-    uv2 = mix(uv2 * (1 + zoom * 2), uv2 * (zoom), step(0.5, zoom));
-    uv2 += vec2(x_shift * ratio, y_shift) * 2;
-    vec3 c = reframe(src1, uv2).xyz;
-
-    return fx_master(c0, c, seed, m0);
-}
-
-subroutine(fx_stage_sub) vec4 fx_2(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
-{
-    return fx_shift(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
-}
-
-// FX 3 : shift
-subroutine(fx_stage_sub) vec4 fx_3(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
-{
-    return fx_shift(vUV, previous, previous, seed, b1, f1, b2, f2, b3, f3, m0);
-}
-
-// FX 4 : colorize
-subroutine(fx_stage_sub) vec4 fx_4(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
-{
-    // start
-
-	vec2 uv0 = vUV.st;
-
-    // controls
-
-    float c_black = magic(f1, b1, seed + 10);
-    bool c_black_trigger = magic_trigger(b1, seed + 10);
-    float c_white = magic(f2, b2, seed + 20);
-    bool c_white_trigger = magic_trigger(b2, seed + 20);
-    float delta = magic(f3, b3, seed + 30);
-
-    // logic
-
-    vec3 c0 = texture(previous, uv0).xyz;
-
-    float f = mean(c0);
-    float c_mix = mix(c_black, c_white, f) + delta;
-    vec3 c = mix(c_black_trigger ? col(c_mix) : vec3(0), c_white_trigger ? col(c_mix) : vec3(1), f);
-
-    return fx_master(c0, c, seed, m0);
-}
-
-// FX 5 : quantize
-subroutine(fx_stage_sub) vec4 fx_5(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
-{
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    float pixel_size = magic(f1, b1, seed + 10);
-    float quantize = magic(f2, b2, seed + 20);
-    bool quantize_trigger = magic_trigger(b2, seed + 20);
-    float blur = magic(f3, b3, seed + 30);
-
-    // logic
-
-    vec3 c0 = texture(previous, uv0).xyz;
-    
-    vec2 uv2 = uv1;
-    float pixel = (1 - pixel_size) * 250 + 25;
-    uv2 = round(uv2 * pixel) / pixel;
-    vec3 c = gauss(previous, uv2 * vec2(1 / ratio, 1)  + .5, 3, 0.005 * blur).xyz;
-    float colors = (1 - quantize) * 10 + 1;
-    if (quantize_trigger) {
-        c = round(c * colors) / colors;
-    }
-    // c = mix(c, 1 - c, step(noise_f(uv0 * 10 + vec2(iTime * 0.1, 0), 5), 0.5));
-
-    return fx_master(c0, c, seed, m0);
-}
-
-// FX 6 : dithering
-subroutine(fx_stage_sub) vec4 fx_6(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
-{
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    float pixel_size = magic(f1, b1, seed + 10);
-    bool pixel_size_trigger = magic_trigger(b1, seed + 10);
-    float quantize = magic(f2, b2, seed + 20);
-    bool quantize_trigger = magic_trigger(b2, seed + 20);
-    float blur = magic(f3, b3, seed + 30);
-
-    // logic
-
-    vec3 c0 = texture(previous, uv0).xyz;
-
-    vec2 uv2 = uv1;
-    float k1 = pow(2, 10 - floor(pixel_size * 5));
-    float pixel = (1 - pixel_size) * 250 + 25;
-    if (pixel_size_trigger) {
-        uv2 = floor(uv2 * k1) / k1;
-    }
-    vec3 c = gauss(previous, uv2 * vec2(1 / ratio, 1)  + .5, 3, 0.005 * blur).xyz;
-    float k3 = pow(2, 5 - floor(quantize * 5));
-    if (quantize_trigger) {
-        c *= k3;
-        c = vec3(
-            mix(floor(c.x), ceil(c.x), dither(uv2 * k1, c.x - floor(c.x))),
-            mix(floor(c.y), ceil(c.y), dither(uv2 * k1, c.y - floor(c.y))),
-            mix(floor(c.z), ceil(c.z), dither(uv2 * k1, c.z - floor(c.z)))
-        );
-        c /= k3;
-    }
-
-    return fx_master(c0, c, seed, m0);
-}
-
-// FX 7 : tv
-subroutine(fx_stage_sub) vec4 fx_7(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
-{
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    float lens_v = magic(f1, b1, seed + 10);
-    float horizontal_noise = magic(f2, b2, seed + 20);
-    float zoom = magic(f3, b3, seed + 30);
-
-    // logic
-    
-    vec3 c0 = texture(previous, uv0).xyz;
-    
-    vec2 uv2 = uv1;
-    float k1 = lens_v * 0.5;
-    uv2 *= 1 + zoom * 2;
-    uv2 = lens(uv2, -k1, k1);
-    float k = horizontal_noise;
-    vec3 c = vec3(
-        reframe_b(previous, uv2 + vec2((rand(uv0.y * 1000 + iTime) - 0.5) * k * 0.1)).x,
-        reframe_b(previous, uv2 + vec2((rand(uv0.y * 1100 + iTime) - 0.5) * k * 0.1)).y,
-        reframe_b(previous, uv2).z
-    );
-
-    return fx_master(c0, c, seed, m0);
-}
-
-// FX 8 : kaleidoscope
-subroutine(fx_stage_sub) vec4 fx_8(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
-{
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    float axes = magic(f1, b1, seed + 10);
-    float axes_trigger = magic_b(b1, seed + 10).x;
-    float rotation = magic(f2, b2, seed + 20);
-    float h_scroll = magic(f3, b3, seed + 30);
-
-    // logic
-
-    vec3 c0 = texture(previous, uv0).xyz;
-    
-    vec2 uv2 = uv1;
-    uv2 = mix(uv2, kal2(uv2 * rot(0.25), floor(axes * 9 + 1)) * vec2(1, -2) + vec2(0, -0.5), axes_trigger);    
-    uv2 *= rot(rotation);
-    uv2.x = (saw(uv2.x / ratio + 0.5 + h_scroll * 2) - 0.5) * ratio;
-    vec3 c = reframe(previous, uv2).xyz;
-
-    return fx_master(c0, c, seed, m0);
-}
-
-// FX 9 : cp437
-subroutine(fx_stage_sub) vec4 fx_9(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
-{
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    float zoom = magic(f1, b1, seed + 10);
-    vec2 charset = magic_f(f2, b2, seed + 20);
-    vec3 charset_ctrl = magic_b(b2, seed + 20);
-    float char_delta = magic(f3, b3, seed + 30);
-    float t = magic(seed + 40); 
-
-    // logic
-
-    vec3 c0 = texture(previous, uv0).xyz;
-    
-    vec2 uv2 = uv1;
-    float k1 = 100 * (1 - zoom) + 10;
-    float inv_k = 1 / k1;
-    uv2 = floor(uv2 * k1) * inv_k;
-    int start_char = charset_ctrl.x > 0 ? charsets[int(charset.x * CHARSETS) * 2] : 0x01;
-    int char_span = int((charset_ctrl.x > 0 ? charsets[int(charset.x * CHARSETS) * 2 + 1] : 255));
-    char_span = int(char_span * max(1 - charset.y, 1 / (char_span * 0.75)));
-    ivec2 uv2i = ivec2(uv2 * k1);
-    int code = ((charset_ctrl.y < 1 || (uv2i.x % 2 ^ uv2i.y % 2) > 0) ? 1 : 0) * (start_char + int((rand(uv2i) + char_delta) * char_span) % char_span);
-    vec3 c = reframe(previous, uv2 + vec2(0, 0) * inv_k * 0.125).xyz * 0.2
-        + reframe(previous, uv2 + vec2(1, 0) * inv_k * 0.125).xyz * 0.2
-        + reframe(previous, uv2 + vec2(1, 1) * inv_k * 0.125).xyz * 0.2
-        + reframe(previous, uv2 + vec2(0, 1) * inv_k * 0.125).xyz * 0.2
-        + reframe(previous, uv2 + vec2(0.5, 0.5) * inv_k * 0.125).xyz * 0.2;
-    c = char(mod(uv1 * k1, 1), code) ? c : vec3(0);
-
-    return fx_master(c0, c, seed, m0);
-}
-
-// FX 10 : lens
-subroutine(fx_stage_sub) vec4 fx_10(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
-{
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    float lens_v1 = magic(f1, b1, seed + 10);
-    float lens_v2 = magic(f2, b2, seed + 20);
-    float zoom = magic(f3, b3, seed + 30);
-    float k = magic(seed + 40);
-
-    // logic
-
-    vec3 c0 = texture(previous, uv0).xyz;
-    
-    vec2 uv2 = uv1;
-    uv2 *= 1 + zoom * 2;
-    uv2 = lens(uv2, -lens_v2 * 10, lens_v1 * 10);
-    vec3 c = reframe(previous, uv2).xyz;
-
-    return fx_master(c0, c, seed, m0);
-}
-
-// TODO FX 11
-subroutine(fx_stage_sub) vec4 fx_11(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
-{
-    return fx_1(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    // logic
-    
-    vec3 c0 = texture(previous, uv0).xyz;
-    vec3 c = c0;
-
-    return fx_master(c0, c, seed, m0);
-}
-
-// TODO FX 12
-subroutine(fx_stage_sub) vec4 fx_12(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
-{
-    return fx_2(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    // logic
-    
-    vec3 c0 = texture(previous, uv0).xyz;
-    vec3 c = c0;
-
-    return fx_master(c0, c, seed, m0);
-}
-
-// TODO FX 13
-subroutine(fx_stage_sub) vec4 fx_13(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
-{
-    return fx_3(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    // logic
-    
-    vec3 c0 = texture(previous, uv0).xyz;
-    vec3 c = c0;
-
-    return fx_master(c0, c, seed, m0);
-}
-
-// TODO FX 14
-subroutine(fx_stage_sub) vec4 fx_14(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
-{
-    return fx_4(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    // logic
-
-    vec3 c0 = texture(previous, uv0).xyz;
-    vec3 c = c0;
-
-    return fx_master(c0, c, seed, m0);
-}
-
-// TODO FX 15
-subroutine(fx_stage_sub) vec4 fx_15(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
-{
-    return fx_5(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
-    // start
-
-	vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    // controls
-
-    // logic
-    
-    vec3 c0 = texture(previous, uv0).xyz;
-    vec3 c = c0;
-
-    return fx_master(c0, c, seed, m0);
-}
-
-const mat3x3 yuv_to_rgb = {{1,1,1},{0,-0.39465,2.03211},{1.13983,-0.5806,0}};
-
-vec4 yuyvTex(sampler2D tex, vec2 vUV, int base_width) {
-    float w = base_width - 1;
-    
-    int x = int(vUV.x * w);
-
-    int xU = x - x % 2;
-    int xV = x - x % 2 + 1;
-
-    vec4 tU = texture(tex, vec2(xU / w, 1 - vUV.y));
-    vec4 tV = texture(tex, vec2(xV / w, 1 - vUV.y));
-
-    vec3 yuv = vec3(
-        x % 2 == 0 ? tU.x : tV.x,
-        tU.y - 0.5,
-        tV.y - 0.5
-    );
-
-    return vec4(yuv_to_rgb * yuv, 1.0);
-}
\ No newline at end of file
diff --git a/default/frag1.glsl b/default/frag1.glsl
index c5a3ebc..eec4ab3 100644
--- a/default/frag1.glsl
+++ b/default/frag1.glsl
@@ -1,4 +1,4 @@
-#include frag0.glsl
+#version 460
 
 // VIDEO 1
 // -----------
@@ -8,6 +8,13 @@
 in vec2 vUV;
 out vec4 fragColor;
 
+#include inc_yuv.glsl
+
+uniform sampler2D iTex0;
+uniform sampler2D iTex1;
+uniform int iInputFormat1;
+uniform vec2 iInputResolution1;
+
 void main() {
     if (iInputFormat1 == YUYV_FOURCC) {
         fragColor = yuyvTex(iTex1, vUV, int(iInputResolution1.x));
diff --git a/default/frag10.glsl b/default/frag10.glsl
index 4e2d812..65f844c 100644
--- a/default/frag10.glsl
+++ b/default/frag10.glsl
@@ -1,4 +1,4 @@
-#include frag0.glsl
+#version 460
 
 // MONITOR
 // ---
@@ -6,6 +6,18 @@
 in vec2 vUV;
 out vec4 fragColor;
 
+#include inc_debug.glsl
+
+uniform sampler2D iTex0;
+uniform sampler2D iTex1;
+uniform sampler2D iTex2;
+uniform sampler2D iTex3;
+uniform sampler2D iTex4;
+uniform sampler2D iTex5;
+uniform sampler2D iTex6;
+uniform sampler2D iTex7;
+uniform sampler2D iTex8;
+uniform sampler2D iTex9;
 uniform int iInputFPS1;
 uniform int iInputFPS2;
 
@@ -43,7 +55,7 @@ void main() {
     c += s(uv2,1,1) * texture(iTex6, uv2);
     c += s(uv2,2,1) * texture(iTex8, uv2);
 
-    c += s(uv2,0,0) * src_15(mod(uv2, 1), 0, vec3(0), vec2(0), vec3(0), vec2(0), vec3(0), vec2(0));
+    c += s(uv2,0,0) * debug(mod(uv2, 1));
     c += s(uv2,1,0) * texture(iTex9, uv2);
     c += s(uv2,2,0) * texture(iTex0, uv2);
 
diff --git a/default/frag2.glsl b/default/frag2.glsl
index c485173..cbace02 100644
--- a/default/frag2.glsl
+++ b/default/frag2.glsl
@@ -1,4 +1,4 @@
-#include frag0.glsl
+#version 460
 
 // VIDEO 2
 // -----------
@@ -8,6 +8,13 @@
 in vec2 vUV;
 out vec4 fragColor;
 
+#include inc_yuv.glsl
+
+uniform sampler2D iTex0;
+uniform sampler2D iTex2;
+uniform int iInputFormat2;
+uniform vec2 iInputResolution2;
+
 void main() {
     if (iInputFormat2 == YUYV_FOURCC) {
         fragColor = yuyvTex(iTex2, vUV, int(iInputResolution2.x));
diff --git a/default/frag3.glsl b/default/frag3.glsl
index d53b640..feab26d 100644
--- a/default/frag3.glsl
+++ b/default/frag3.glsl
@@ -1,4 +1,5 @@
-#include frag0.glsl
+
+#version 460
 
 // SRC A
 // -----------
@@ -7,6 +8,11 @@
 in vec2 vUV;
 out vec4 fragColor;
 
+#include inc_src.glsl
+
+subroutine uniform src_stage_sub src_stage;
+
+uniform int iSeed3;
 uniform vec3 iMidi1_1[6];
 
 void main() {
diff --git a/default/frag4.glsl b/default/frag4.glsl
index 1035c9e..620d11f 100644
--- a/default/frag4.glsl
+++ b/default/frag4.glsl
@@ -1,4 +1,4 @@
-#include frag0.glsl
+#version 460
 
 // SRC B
 // -----------
@@ -7,6 +7,11 @@
 in vec2 vUV;
 out vec4 fragColor;
 
+#include inc_src.glsl
+
+subroutine uniform src_stage_sub src_stage;
+
+uniform int iSeed4;
 uniform vec3 iMidi1_2[6];
 
 void main() {
diff --git a/default/frag5.glsl b/default/frag5.glsl
index bb3d983..20e7baa 100644
--- a/default/frag5.glsl
+++ b/default/frag5.glsl
@@ -1,4 +1,4 @@
-#include frag0.glsl
+#version 460
 
 // FX A
 // -------------
@@ -9,6 +9,13 @@
 in vec2 vUV;
 out vec4 fragColor;
 
+#include inc_fx.glsl
+
+uniform sampler2D iTex5;
+uniform sampler2D iTex7;
+uniform int iSeed5;
+uniform vec3 iMidi2_1[7];
+
 void main() {
     fragColor = fx_stage(vUV, iTex5, iTex7, iSeed5, iMidi2_1[0], iMidi2_1[1].xy, iMidi2_1[2], iMidi2_1[3].xy, iMidi2_1[4], iMidi2_1[5].xy, iMidi2_1[6]);
 }
\ No newline at end of file
diff --git a/default/frag6.glsl b/default/frag6.glsl
index 546ca27..479cbc8 100644
--- a/default/frag6.glsl
+++ b/default/frag6.glsl
@@ -1,4 +1,4 @@
-#include frag0.glsl
+#version 460
 
 // FX B
 // -------------
@@ -9,6 +9,13 @@
 in vec2 vUV;
 out vec4 fragColor;
 
+#include inc_fx.glsl
+
+uniform sampler2D iTex6;
+uniform sampler2D iTex8;
+uniform int iSeed6;
+uniform vec3 iMidi2_2[7];
+
 void main() {
     fragColor = fx_stage(vUV, iTex6, iTex8, iSeed6, iMidi2_2[0], iMidi2_2[1].xy, iMidi2_2[2], iMidi2_2[3].xy, iMidi2_2[4], iMidi2_2[5].xy, iMidi2_2[6]);
 }
\ No newline at end of file
diff --git a/default/frag7.glsl b/default/frag7.glsl
index e60ffd4..521d6f7 100644
--- a/default/frag7.glsl
+++ b/default/frag7.glsl
@@ -1,4 +1,4 @@
-#include frag0.glsl
+#version 460
 
 // A+B
 // ------------
@@ -9,6 +9,14 @@
 in vec2 vUV;
 out vec4 fragColor;
 
+#include inc_magic.glsl
+#include inc_functions.glsl
+
+uniform sampler2D iTex7;
+uniform sampler2D iTex8;
+uniform int iSeed7;
+uniform vec3 iMidi3_1[2];
+
 void main() {
     float mix_value = magic(iMidi3_1[1].xy, vec3(1, 0, 0), iSeed7);
     bool mix_type = magic_trigger(vec3(iMidi3_1[0].x, 0, 0), iSeed7 + 10);
diff --git a/default/frag8.glsl b/default/frag8.glsl
index ad1b153..250c9fa 100644
--- a/default/frag8.glsl
+++ b/default/frag8.glsl
@@ -1,4 +1,4 @@
-#include frag0.glsl
+#version 460
 
 // MFX
 // ------------
@@ -9,6 +9,14 @@
 in vec2 vUV;
 out vec4 fragColor;
 
+#include inc_fx.glsl
+
+uniform sampler2D iTex9;
+uniform sampler2D iTex0;
+uniform int iSeed8;
+uniform vec3 iMidi2_3[7];
+uniform vec3 iMidi3_1[2];
+
 void main() {
     vec4 color = fx_stage(vUV, iTex9, iTex0, iSeed8, iMidi2_3[0], iMidi2_3[1].xy, iMidi2_3[2], iMidi2_3[3].xy, iMidi2_3[4], iMidi2_3[5].xy, iMidi2_3[6]);
 
diff --git a/default/frag9.glsl b/default/frag9.glsl
index eac9116..39eb1b5 100644
--- a/default/frag9.glsl
+++ b/default/frag9.glsl
@@ -1,4 +1,4 @@
-#include frag0.glsl
+#version 460
 
 // OUT
 // ---
@@ -6,6 +6,8 @@
 in vec2 vUV;
 out vec4 fragColor;
 
+uniform sampler2D iTex0;
+
 void main() {
     fragColor = texture(iTex0, vUV);
 }
\ No newline at end of file
diff --git a/default/inc_cp437.glsl b/default/inc_cp437.glsl
new file mode 100644
index 0000000..1f2d2a3
--- /dev/null
+++ b/default/inc_cp437.glsl
@@ -0,0 +1,433 @@
+#ifndef INC_CP437
+#define INC_CP437
+
+const int cp437[] = {
+    0x0000, 0x0000, 0x0000, 0x0000, // 0x00, NUL
+    0x151E, 0x8A87, 0xE19D, 0x789B, // 0x01, SOH, SMILEY BLACK
+    0xFBFE, 0xFDF7, 0xEF73, 0x7FEC, // 0x02, STX, SMILEY LIGHT
+    0xFFF6, 0x7773, 0x08CE, 0x0013, // 0x03, ETX, HEART
+    0xFEC8, 0x7310, 0x08CE, 0x0013, // 0x04, EOT, DIAMOND
+    0xFCEC, 0x7131, 0xECEF, 0x3137, // 0x05, ENQ, CLUB
+    0xEC88, 0x3100, 0xECEF, 0x3137, // 0x06, ACK, SPADE
+    0xC800, 0x3100, 0x008C, 0x0013, // 0x07, BEL, DOT
+    0x37FF, 0xCEFF, 0xFF73, 0xFFEC, // 0x08, BS, INVERT DOT
+    0x26C0, 0x4630, 0x0C62, 0x0364, // 0x09, HT, CIRCLE
+    0xD93F, 0xB9CF, 0xF39D, 0xFC9B, // 0x0A, LF, INVERT CIRCLE
+    0xE000, 0xBFEF, 0xE333, 0x1333, // 0x0B, VT, MALE
+    0x666C, 0x6663, 0x8E8C, 0x1713, // 0x0C, FF, FEMALE
+    0xCCCC, 0x0FCF, 0x7FEC, 0x0000, // 0x0D, CR, NOTE
+    0x6E6E, 0xCFCF, 0x3766, 0x06EC, // 0x0E, SO, DOUBLE NOTE
+    0x7CA9, 0xE359, 0x9AC7, 0x953E, // 0x0F, SI, SUN
+    0xFF71, 0x7100, 0x017F, 0x0001, // 0x10, DLE, RIGHT TRIANGLE
+    0xFC00, 0x7774, 0x000C, 0x0477, // 0x11, DC1, LEFT TRIANGLE
+    0x8EC8, 0x1731, 0x8CE8, 0x1371, // 0x12, DC2, ARROW UP DOWN
+    0x6666, 0x6666, 0x0606, 0x0606, // 0x13, DC3, DOUBLE EXCLAMATION
+    0xEBBE, 0xDDDF, 0x0888, 0x0DDD, // 0x14, DC4, PARAGRAPH
+    0x6C6C, 0x31C7, 0xE3C6, 0x1313, // 0x15, NAK, ?
+    0x0000, 0x0000, 0x0EEE, 0x0777, // 0x16, SYN, HALF SQUARE BOTTOM
+    0x8EC8, 0x1731, 0xF8CE, 0xF137, // 0x17, ETB, ARROW UP DOWN UNDERLINED
+    0x8EC8, 0x1731, 0x0888, 0x0111, // 0x18, CAN, ARROW UP
+    0x8888, 0x1111, 0x08CE, 0x0137, // 0x19, EM, ARROW DOWN
+    0xF080, 0x7310, 0x0080, 0x0013, // 0x1A, SUB, ARROW RIGHT
+    0xF6C0, 0x7000, 0x00C6, 0x0000, // 0x1B, ESC, ARROW LEFT
+    0x3300, 0x0000, 0x00F3, 0x0070, // 0x1C, FS, ?
+    0xF640, 0xF620, 0x0046, 0x0026, // 0x1D, GS, ARROW LEFT RIGHT
+    0xEC80, 0x7310, 0x00FF, 0x00FF, // 0x1E, RS, TRIANGLE UP
+    0xEFF0, 0x7FF0, 0x008C, 0x0013, // 0x1F, US, TRIANGLE DOWN
+    0x0000, 0x0000, 0x0000, 0x0000, // 0x20, SPACE
+    0xCEEC, 0x0110, 0x0C0C, 0x0000, // 0x21, !
+    0x0666, 0x0333, 0x0000, 0x0000, // 0x22, "
+    0x6F66, 0x3733, 0x066F, 0x0337, // 0x23, #
+    0xE3EC, 0x1030, 0x0CF0, 0x0013, // 0x24, $
+    0x8330, 0x1360, 0x036C, 0x0660, // 0x25, %
+    0xEC6C, 0x6131, 0x0E3B, 0x0633, // 0x26, &
+    0x0366, 0x0000, 0x0000, 0x0000, // 0x27, '
+    0x66C8, 0x0001, 0x08C6, 0x0100, // 0x28, (
+    0x88C6, 0x1100, 0x06C8, 0x0001, // 0x29, )
+    0xFC60, 0xF360, 0x006C, 0x0063, // 0x2A, *
+    0xFCC0, 0x3000, 0x00CC, 0x0000, // 0x2B, +
+    0x0000, 0x0000, 0x6CC0, 0x0000, // 0x2C, ,
+    0xF000, 0x3000, 0x0000, 0x0000, // 0x2D, -
+    0x0000, 0x0000, 0x0CC0, 0x0000, // 0x2E, .
+    0xC800, 0x0136, 0x0136, 0x0000, // 0x2F, /
+    0xB33E, 0x7763, 0x0E7F, 0x0366, // 0x30, 0
+    0xCCEC, 0x0000, 0x0FCC, 0x0300, // 0x31, 1
+    0xC03E, 0x1331, 0x0F36, 0x0330, // 0x32, 2
+    0xC03E, 0x1331, 0x0E30, 0x0133, // 0x33, 3
+    0x36C8, 0x3333, 0x080F, 0x0737, // 0x34, 4
+    0x0F3F, 0x3103, 0x0E30, 0x0133, // 0x35, 5
+    0xF36C, 0x1001, 0x0E33, 0x0133, // 0x36, 6
+    0x803F, 0x1333, 0x0CCC, 0x0000, // 0x37, 7
+    0xE33E, 0x1331, 0x0E33, 0x0133, // 0x38, 8
+    0xE33E, 0x3331, 0x0E80, 0x0013, // 0x39, 9
+    0x0CC0, 0x0000, 0x0CC0, 0x0000, // 0x3A, :
+    0x0CC0, 0x0000, 0x6CC0, 0x0000, // 0x3B, ;
+    0x36C8, 0x0001, 0x08C6, 0x0100, // 0x3C, <
+    0x0F00, 0x0300, 0x00F0, 0x0030, // 0x3D, =
+    0x08C6, 0x3100, 0x06C8, 0x0001, // 0x3E, >
+    0x803E, 0x1331, 0x0C0C, 0x0000, // 0x3F, ?
+    0xBB3E, 0x7763, 0x0E3B, 0x0107, // 0x40, @
+    0x33EC, 0x3310, 0x033F, 0x0333, // 0x41, A
+    0xE66F, 0x3663, 0x0F66, 0x0366, // 0x42, B
+    0x336C, 0x0063, 0x0C63, 0x0360, // 0x43, C
+    0x666F, 0x6631, 0x0F66, 0x0136, // 0x44, D
+    0xE66F, 0x1147, 0x0F66, 0x0741, // 0x45, E
+    0xE66F, 0x1147, 0x0F66, 0x0001, // 0x46, F
+    0x336C, 0x0063, 0x0C63, 0x0767, // 0x47, G
+    0xF333, 0x3333, 0x0333, 0x0333, // 0x48, H
+    0xCCCE, 0x0001, 0x0ECC, 0x0100, // 0x49, I
+    0x0008, 0x3337, 0x0E33, 0x0133, // 0x4A, J
+    0xE667, 0x1366, 0x0766, 0x0663, // 0x4B, K
+    0x666F, 0x0000, 0x0F66, 0x0764, // 0x4C, L
+    0xFF73, 0x7776, 0x033B, 0x0666, // 0x4D, M
+    0xBF73, 0x7666, 0x0333, 0x0667, // 0x4E, N
+    0x336C, 0x6631, 0x0C63, 0x0136, // 0x4F, O
+    0xE66F, 0x3663, 0x0F66, 0x0000, // 0x50, P
+    0x333E, 0x3331, 0x08EB, 0x0313, // 0x51, Q
+    0xE66F, 0x3663, 0x0766, 0x0663, // 0x52, R
+    0xE73E, 0x0031, 0x0E38, 0x0133, // 0x53, S
+    0xCCDF, 0x0023, 0x0ECC, 0x0100, // 0x54, T
+    0x3333, 0x3333, 0x0F33, 0x0333, // 0x55, U
+    0x3333, 0x3333, 0x0CE3, 0x0013, // 0x56, V
+    0xB333, 0x6666, 0x037F, 0x0677, // 0x57, W
+    0xC633, 0x1366, 0x036C, 0x0631, // 0x58, X
+    0xE333, 0x1333, 0x0ECC, 0x0100, // 0x59, Y
+    0x813F, 0x1367, 0x0F6C, 0x0764, // 0x5A, Z
+    0x666E, 0x0001, 0x0E66, 0x0100, // 0x5B, [
+    0x8C63, 0x1000, 0x0000, 0x0463, // 0x5C, 
+    0x888E, 0x1111, 0x0E88, 0x0111, // 0x5D, ]
+    0x36C8, 0x6310, 0x0000, 0x0000, // 0x5E, ^
+    0x0000, 0x0000, 0xF000, 0xF000, // 0x5F, _
+    0x08CC, 0x0100, 0x0000, 0x0000, // 0x60, `
+    0x0E00, 0x3100, 0x0E3E, 0x0633, // 0x61, a
+    0xE667, 0x3000, 0x0B66, 0x0366, // 0x62, b
+    0x3E00, 0x3100, 0x0E33, 0x0130, // 0x63, c
+    0xE008, 0x3333, 0x0E33, 0x0633, // 0x64, d
+    0x3E00, 0x3100, 0x0E3F, 0x0103, // 0x65, e
+    0xF66C, 0x0031, 0x0F66, 0x0000, // 0x66, f
+    0x3E00, 0x3600, 0xF0E3, 0x1333, // 0x67, g
+    0xE667, 0x6300, 0x0766, 0x0666, // 0x68, h
+    0xCE0C, 0x0000, 0x0ECC, 0x0100, // 0x69, i
+    0x0000, 0x3303, 0xE330, 0x1333, // 0x6A, j
+    0x6667, 0x3600, 0x076E, 0x0631, // 0x6B, k
+    0xCCCE, 0x0000, 0x0ECC, 0x0100, // 0x6C, l
+    0xF300, 0x7300, 0x03BF, 0x0667, // 0x6D, m
+    0x3F00, 0x3100, 0x0333, 0x0333, // 0x6E, n
+    0x3E00, 0x3100, 0x0E33, 0x0133, // 0x6F, o
+    0x6B00, 0x6300, 0xF6E6, 0x0036, // 0x70, p
+    0x3E00, 0x3600, 0x80E3, 0x7333, // 0x71, q
+    0xEB00, 0x6300, 0x0F66, 0x0006, // 0x72, r
+    0x3E00, 0x0300, 0x0F0E, 0x0131, // 0x73, s
+    0xCEC8, 0x0300, 0x08CC, 0x0120, // 0x74, t
+    0x3300, 0x3300, 0x0E33, 0x0633, // 0x75, u
+    0x3300, 0x3300, 0x0CE3, 0x0013, // 0x76, v
+    0xB300, 0x6600, 0x06FF, 0x0377, // 0x77, w
+    0x6300, 0x3600, 0x036C, 0x0631, // 0x78, x
+    0x3300, 0x3300, 0xF0E3, 0x1333, // 0x79, y
+    0x9F00, 0x1300, 0x0F6C, 0x0320, // 0x7A, z
+    0x7CC8, 0x0003, 0x08CC, 0x0300, // 0x7B, {
+    0x0888, 0x0111, 0x0888, 0x0111, // 0x7C, |
+    0x8CC7, 0x3000, 0x07CC, 0x0000, // 0x7D, }
+    0x00BE, 0x0036, 0x0000, 0x0000, // 0x7E, ~
+    0x6C80, 0x3100, 0x0F33, 0x0766, // 0x7F, DEL, HOUSE
+    0x333E, 0x3031, 0xE08E, 0x1311, // 0x80, Ç
+    0x3030, 0x3030, 0x0E33, 0x0733, // 0x81, ü
+    0x3E08, 0x3103, 0x0E3F, 0x0103, // 0x82, é
+    0x0C3E, 0x63C7, 0x0C6C, 0x0F67, // 0x83, â
+    0x0E03, 0x3103, 0x0E3E, 0x0733, // 0x84, ä
+    0x0E07, 0x3100, 0x0E3E, 0x0733, // 0x85, à
+    0x0ECC, 0x3100, 0x0E3E, 0x0733, // 0x86, å
+    0x3E00, 0x0100, 0xC0E3, 0x1310, // 0x87, ç
+    0x6C3E, 0x63C7, 0x0C6E, 0x0307, // 0x88, ê
+    0x3E03, 0x3103, 0x0E3F, 0x0103, // 0x89, ë
+    0x3E07, 0x3100, 0x0E3F, 0x0103, // 0x8A, è
+    0xCE03, 0x0003, 0x0ECC, 0x0100, // 0x8B, ï
+    0x8C3E, 0x1163, 0x0C88, 0x0311, // 0x8C, î
+    0xCE07, 0x0000, 0x0ECC, 0x0100, // 0x8D, ì
+    0x36C3, 0x6316, 0x033F, 0x0667, // 0x8E, Ä
+    0xE0CC, 0x1000, 0x03F3, 0x0333, // 0x8F, Å
+    0x6F08, 0x0303, 0x0F6E, 0x0301, // 0x90, É
+    0x0E00, 0x3F00, 0x0E3E, 0x0F3F, // 0x91, æ
+    0xF36C, 0x7337, 0x0333, 0x0733, // 0x92, Æ
+    0xE03E, 0x1031, 0x0E33, 0x0133, // 0x93, ô
+    0xE030, 0x1030, 0x0E33, 0x0133, // 0x94, ö
+    0xE070, 0x1000, 0x0E33, 0x0133, // 0x95, ò
+    0x303E, 0x3031, 0x0E33, 0x0733, // 0x96, û
+    0x3070, 0x3000, 0x0E33, 0x0733, // 0x97, ù
+    0x3030, 0x3030, 0xF0E3, 0x1333, // 0x98, ÿ
+    0x6C83, 0x631C, 0x08C6, 0x0136, // 0x99, Ö
+    0x3303, 0x3303, 0x0E33, 0x0133, // 0x9A, Ü
+    0x3E88, 0x0711, 0x88E3, 0x1170, // 0x9B, ¢
+    0xF66C, 0x0231, 0x0F76, 0x0360, // 0x9C, £
+    0xFE33, 0x3133, 0xCCFC, 0x0030, // 0x9D, ¥
+    0xF33F, 0x5331, 0x3333, 0xE6F6, // 0x9E, ₧
+    0xC880, 0x31D7, 0xEB88, 0x0111, // 0x9F, ƒ
+    0x0E08, 0x3103, 0x0E3E, 0x0733, // 0xA0, á
+    0xCE0C, 0x0001, 0x0ECC, 0x0100, // 0xA1, í
+    0xE080, 0x1030, 0x0E33, 0x0133, // 0xA2, ó
+    0x3080, 0x3030, 0x0E33, 0x0733, // 0xA3, ú
+    0xF0F0, 0x1010, 0x0333, 0x0333, // 0xA4, ñ
+    0x730F, 0x3303, 0x03BF, 0x0333, // 0xA5, Ñ
+    0xC66C, 0x7333, 0x00E0, 0x0070, // 0xA6, ª
+    0xC66C, 0x1331, 0x00E0, 0x0030, // 0xA7, º
+    0x6C0C, 0x0000, 0x0E33, 0x0130, // 0xA8, ¿
+    0xF000, 0x3000, 0x0033, 0x0000, // 0xA9, ⌐
+    0xF000, 0x3000, 0x0000, 0x0033, // 0xAA, ¬
+    0xB333, 0x736C, 0x036C, 0xF36C, // 0xAB, ½
+    0xB333, 0xD36C, 0x036C, 0xCFFE, // 0xAC, ¼
+    0x8088, 0x1011, 0x0888, 0x0111, // 0xAD, ¡
+    0x36C0, 0x36C0, 0x00C6, 0x00C6, // 0xAE, «
+    0xC630, 0xC630, 0x0036, 0x0036, // 0xAF, »
+    0x1414, 0x1414, 0x1414, 0x1414, // 0xB0, ░
+    0x5A5A, 0x5A5A, 0x5A5A, 0x5A5A, // 0xB1, ▒
+    0xBEBE, 0xBEBE, 0xBEBE, 0xBEBE, // 0xB2, ▓
+    0x8888, 0x1111, 0x8888, 0x1111, // 0xB3, │
+    0x8888, 0x1111, 0x888F, 0x1111, // 0xB4, ┤
+    0x8F88, 0x1111, 0x888F, 0x1111, // 0xB5, ╡
+    0xCCCC, 0x6666, 0xCCCF, 0x6666, // 0xB6, ╢
+    0x0000, 0x0000, 0xCCCF, 0x6667, // 0xB7, ╖
+    0x8F00, 0x1100, 0x888F, 0x1111, // 0xB8, ╕
+    0x0FCC, 0x6666, 0xCCCF, 0x6666, // 0xB9, ╣
+    0xCCCC, 0x6666, 0xCCCC, 0x6666, // 0xBA, ║
+    0x0F00, 0x6700, 0xCCCF, 0x6666, // 0xBB, ╗
+    0x0FCC, 0x6666, 0x000F, 0x0007, // 0xBC, ╝
+    0xCCCC, 0x6666, 0x000F, 0x0007, // 0xBD, ╜
+    0x8F88, 0x1111, 0x000F, 0x0001, // 0xBE, ╛
+    0x0000, 0x0000, 0x888F, 0x1111, // 0xBF, ┐
+    0x8888, 0x1111, 0x0008, 0x000F, // 0xC0, └
+    0x8888, 0x1111, 0x000F, 0x000F, // 0xC1, ┴
+    0x0000, 0x0000, 0x888F, 0x111F, // 0xC2, ┬
+    0x8888, 0x1111, 0x8888, 0x111F, // 0xC3, ├
+    0x0000, 0x0000, 0x000F, 0x000F, // 0xC4, ─
+    0x8888, 0x1111, 0x888F, 0x111F, // 0xC5, ┼
+    0x8888, 0x1F11, 0x8888, 0x111F, // 0xC6, ╞
+    0xCCCC, 0x6666, 0xCCCC, 0x666E, // 0xC7, ╟
+    0xCCCC, 0x0E66, 0x000C, 0x000F, // 0xC8, ╚
+    0xCC00, 0x0F00, 0xCCCC, 0x666E, // 0xC9, ╔
+    0x0FCC, 0x0E66, 0x000F, 0x000F, // 0xCA, ╩
+    0x0F00, 0x0F00, 0xCCCF, 0x666E, // 0xCB, ╦
+    0xCCCC, 0x0E66, 0xCCCC, 0x666E, // 0xCC, ╠
+    0x0F00, 0x0F00, 0x000F, 0x000F, // 0xCD, ═
+    0x0FCC, 0x0E66, 0xCCCF, 0x666E, // 0xCE, ╬
+    0x0F88, 0x0F11, 0x000F, 0x000F, // 0xCF, ╧
+    0xCCCC, 0x6666, 0x000F, 0x000F, // 0xD0, ╨
+    0x0F00, 0x0F00, 0x888F, 0x111F, // 0xD1, ╤
+    0x0000, 0x0000, 0xCCCF, 0x666F, // 0xD2, ╥
+    0xCCCC, 0x6666, 0x000C, 0x000F, // 0xD3, ╙
+    0x8888, 0x1F11, 0x0008, 0x000F, // 0xD4, ╘
+    0x8800, 0x1F00, 0x8888, 0x111F, // 0xD5, ╒
+    0x0000, 0x0000, 0xCCCC, 0x666F, // 0xD6, ╓
+    0xCCCC, 0x6666, 0xCCCF, 0x666F, // 0xD7, ╫
+    0x8F88, 0x1F11, 0x888F, 0x111F, // 0xD8, ╪
+    0x8888, 0x1111, 0x000F, 0x0001, // 0xD9, ┘
+    0x0000, 0x0000, 0x8888, 0x111F, // 0xDA, ┌
+    0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, // 0xDB, █
+    0x0000, 0x0000, 0xFFFF, 0xFFFF, // 0xDC, ▄
+    0xFFFF, 0x0000, 0xFFFF, 0x0000, // 0xDD, ▌
+    0x0000, 0xFFFF, 0x0000, 0xFFFF, // 0xDE, ▐
+    0xFFFF, 0xFFFF, 0x0000, 0x0000, // 0xDF, ▀
+    0xBE00, 0x3600, 0x0EB3, 0x0631, // 0xE0, α
+    0xF3E0, 0x1310, 0x33F3, 0x0013, // 0xE1, ß
+    0x33F0, 0x0330, 0x0333, 0x0000, // 0xE2, Γ
+    0x66F0, 0x3370, 0x0666, 0x0333, // 0xE3, π
+    0xC63F, 0x0033, 0x0F36, 0x0330, // 0xE4, Σ
+    0xBE00, 0x1700, 0x0EBB, 0x0011, // 0xE5, σ
+    0x6660, 0x6660, 0x36E6, 0x0036, // 0xE6, µ
+    0x8BE0, 0x1360, 0x0888, 0x0111, // 0xE7, τ
+    0x3ECF, 0x3103, 0xFCE3, 0x3013, // 0xE8, Φ
+    0xF36C, 0x7631, 0x0C63, 0x0136, // 0xE9, Θ
+    0x336C, 0x6631, 0x0766, 0x0733, // 0xEA, Ω
+    0xE8C8, 0x3103, 0x0E33, 0x0133, // 0xEB, δ
+    0xBE00, 0xD700, 0x00EB, 0x007D, // 0xEC, ∞
+    0xBE00, 0xD736, 0x36EB, 0x007D, // 0xED, φ
+    0xF36C, 0x1001, 0x0C63, 0x0100, // 0xEE, ε
+    0x333E, 0x3331, 0x0333, 0x0333, // 0xEF, ∩
+    0xF0F0, 0x3030, 0x00F0, 0x0030, // 0xF0, ≡
+    0xCFCC, 0x0300, 0x0F0C, 0x0300, // 0xF1, ±
+    0xC8C6, 0x0100, 0x0F06, 0x0300, // 0xF2, ≥
+    0xC6C8, 0x0001, 0x0F08, 0x0301, // 0xF3, ≤
+    0x8880, 0x1DD7, 0x8888, 0x1111, // 0xF4, ⌠
+    0x8888, 0x1111, 0xEBB8, 0x0111, // 0xF5, ⌡
+    0xF0CC, 0x3000, 0x0CC0, 0x0000, // 0xF6, ÷
+    0x0BE0, 0x0360, 0x00BE, 0x0036, // 0xF7, ≈
+    0xC66C, 0x1331, 0x0000, 0x0000, // 0xF8, °
+    0x8000, 0x1000, 0x0008, 0x0001, // 0xF9, ∙
+    0x0000, 0x0000, 0x0008, 0x0001, // 0xFA, ·
+    0x0000, 0x333F, 0x8C67, 0x3333, // 0xFB, √
+    0x666E, 0x3331, 0x0006, 0x0003, // 0xFC, ⁿ
+    0x6C8E, 0x0010, 0x000E, 0x0001, // 0xFD, ²
+    0xCC00, 0x3300, 0x00CC, 0x0033, // 0xFE, ■
+    0x0000, 0x0000, 0x0000, 0x0000, // 0xFF, NBSP
+};
+
+const int charsets[] = {
+    0x30, 10, // NUMBERS
+    0x41, 26, // UPPERCASE LETTERS
+    0x61, 26, // LOWERCASE LETTERS
+    0x01, 15, // SYMBOLS
+    0x18, 4, // ARROWS
+    0xB3, 40, // BARS
+    0xE0, 16, // GREEK
+    0x80, 28, // ACCENTS
+    0xB0, 3, // SHADES
+};
+
+#define CHARSETS 8
+
+const int hex_chars[] = {
+    0x30,
+    0x31,
+    0x32,
+    0x33,
+    0x34,
+    0x35,
+    0x36,
+    0x37,
+    0x38,
+    0x39,
+    0x41,
+    0x42,
+    0x43,
+    0x44,
+    0x45,
+    0x46,
+};
+
+bool char(vec2 pos, int code)
+{
+    if (pos.x < 0.0 || pos.y < 0.0 || pos.x >= 1.0 || pos.y >= 1.0) {
+        return false;
+    }
+    ivec2 pos2 = ivec2(pos.x * 8.0, (1 - pos.y) * 8.0);
+    ivec2 subpos = pos2 % 4;
+    int v = int(pow(2, subpos.y * 4 + subpos.x));
+    int d = int(pos2.y * 0.25) * 2 + int(pos2.x * 0.25);
+    return (cp437[code * 4 + d] & v) > 0;
+}
+
+float char_at(vec2 uv, vec2 pos, int code)
+{
+    return char(uv - pos, code) ? 1 : 0;
+}
+
+float write_5(vec2 uv, vec2 pos, int str[5])
+{
+    float d = 0;
+    int i;
+
+    for (i = 0; i < 5; i++) {
+        if (str[i] == 0) {
+            return d;
+        }
+
+        d += char_at(uv, pos + vec2(i, 0), str[i]);
+    }
+
+    return d;
+}
+
+float write_10(vec2 uv, vec2 pos, int str[10])
+{
+    float d = 0;
+    int i;
+
+    for (i = 0; i < 10; i++) {
+        if (str[i] == 0) {
+            return d;
+        }
+
+        d += char_at(uv, pos + vec2(i, 0), str[i]);
+    }
+
+    return d;
+}
+
+float write_20(vec2 uv, vec2 pos, int str[20])
+{
+    float d = 0;
+    int i;
+
+    for (i = 0; i < 20; i++) {
+        if (str[i] == 0) {
+            return d;
+        }
+
+        d += char_at(uv, pos + vec2(i, 0), str[i]);
+    }
+
+    return d;
+}
+
+float write_int(vec2 uv, vec2 pos, uint value, uint magnitude)
+{
+    int i;
+    uint m = 1;
+    float d = 0;
+    for (i = 0; i < magnitude; i++) {
+        if (i == 0 || value >= m) {
+            d += char_at(uv, pos + vec2(magnitude - i - 1, 0), int(0x30 + (value % (m * 10u)) / m));
+            m *= 10u;
+        }
+    }
+    return d;
+}
+
+int read(sampler2D tex, vec2 uv, float k, int d, float t)
+{
+    float inv_k = 1 / k;
+    vec2 tex_uv = floor(uv * k) * inv_k;
+    tex_uv += vec2(d % 2, floor(d * 0.5)) * 0.5 * inv_k;
+    return
+        ((mean(reframe(tex, tex_uv + vec2(0, 3) * inv_k * 0.125)) > t) ? 1 : 0) + 
+        ((mean(reframe(tex, tex_uv + vec2(0, 2) * inv_k * 0.125)) > t) ? 2 : 0) +
+        ((mean(reframe(tex, tex_uv + vec2(0, 1) * inv_k * 0.125)) > t) ? 4 : 0) +
+        ((mean(reframe(tex, tex_uv + vec2(0, 0) * inv_k * 0.125)) > t) ? 8 : 0) +
+        ((mean(reframe(tex, tex_uv + vec2(1, 3) * inv_k * 0.125)) > t) ? 16 : 0) +
+        ((mean(reframe(tex, tex_uv + vec2(1, 2) * inv_k * 0.125)) > t) ? 32 : 0) +
+        ((mean(reframe(tex, tex_uv + vec2(1, 1) * inv_k * 0.125)) > t) ? 64 : 0) +
+        ((mean(reframe(tex, tex_uv + vec2(1, 0) * inv_k * 0.125)) > t) ? 128 : 0) +
+        ((mean(reframe(tex, tex_uv + vec2(2, 3) * inv_k * 0.125)) > t) ? 256 : 0) +
+        ((mean(reframe(tex, tex_uv + vec2(2, 2) * inv_k * 0.125)) > t) ? 512 : 0) +
+        ((mean(reframe(tex, tex_uv + vec2(2, 1) * inv_k * 0.125)) > t) ? 1024 : 0) +
+        ((mean(reframe(tex, tex_uv + vec2(2, 0) * inv_k * 0.125)) > t) ? 2048 : 0) +
+        ((mean(reframe(tex, tex_uv + vec2(3, 3) * inv_k * 0.125)) > t) ? 4096 : 0) +
+        ((mean(reframe(tex, tex_uv + vec2(3, 2) * inv_k * 0.125)) > t) ? 8192 : 0) +
+        ((mean(reframe(tex, tex_uv + vec2(3, 1) * inv_k * 0.125)) > t) ? 16384 : 0) +
+        ((mean(reframe(tex, tex_uv + vec2(3, 0) * inv_k * 0.125)) > t) ? 32768 : 0);
+}
+
+// https://web.archive.org/web/20151229003112/http://blogs.msdn.com/b/jeuge/archive/2005/06/08/hakmem-bit-count.aspx
+int bit_count(int u)                         
+{
+        int c;
+        c = u - ((u >> 1) & 033333333333) - ((u >> 2) & 011111111111);
+        return ((c + (c >> 3)) & 030707070707) % 63;
+}
+
+int guess_char(sampler2D tex, vec2 uv, float k, float t)
+{
+    int b0 = read(tex, uv, k, 0, t);
+    int b1 = read(tex, uv, k, 1, t);
+    int b2 = read(tex, uv, k, 2, t);
+    int b3 = read(tex, uv, k, 3, t);
+    
+    int mc = 0;
+    int mb = 100;
+    int i;
+    int b;
+
+    for (i = 0x01; i <= 0xFF; i++) {
+        if (i == 0x20 || i == 0xff || i == 0xDB) {
+            continue;
+        }
+        b = bit_count(cp437[i * 4] ^ b0) + bit_count(cp437[i * 4 + 1] ^ b1) + bit_count(cp437[i * 4 + 2] ^ b2) +  + bit_count(cp437[i * 4 + 3] ^ b3);
+        if (b < mb) {
+            mb = b;
+            mc = i;
+        }
+    }
+
+    return mc;
+}
+
+#endif
\ No newline at end of file
diff --git a/default/inc_debug.glsl b/default/inc_debug.glsl
new file mode 100644
index 0000000..cee4291
--- /dev/null
+++ b/default/inc_debug.glsl
@@ -0,0 +1,200 @@
+#include inc_magic.glsl
+#include inc_functions.glsl
+#include inc_yuv.glsl
+#include inc_cp437.glsl
+
+#ifndef INC_DEBUG
+#define INC_DEBUG
+
+uniform int iFPS;
+
+uniform vec2 iInputResolution1;
+uniform vec2 iInputResolution2;
+uniform int iInputFormat1;
+uniform int iInputFormat2;
+
+uniform int iAutoRand;
+uniform int iPage;
+uniform int iSelected;
+
+uniform int iSeed1;
+uniform int iSeed2;
+uniform int iSeed3;
+uniform int iSeed4;
+uniform int iSeed5;
+uniform int iSeed6;
+uniform int iSeed7;
+uniform int iSeed8;
+
+uniform int iState3;
+uniform int iState4;
+uniform int iState5;
+uniform int iState6;
+uniform int iState8;
+
+uniform int iActive1;
+uniform int iActive2;
+
+uniform vec3 iMidi2_1[7];
+uniform vec3 iMidi2_2[7];
+uniform vec3 iMidi2_3[7];
+uniform vec3 iMidi3_1[2];
+
+
+vec4 debug(vec2 vUV)
+{
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // inputs
+
+    int selected_srca = iState3 - 1;
+    int selected_srcb = iState4 - 1;
+    int selected_fxa = iState5 - 1;
+    int selected_fxb = iState6 - 1;
+    int selected_mfx = iState8 - 1;
+    float fxa_value = magic(iMidi2_1[6].xy, vec3(1, 0, 0), iSeed5);
+    bool fxa_invert = magic_trigger(vec3(iMidi2_1[6].z, 0, 0), iSeed5);
+    float fxb_value = magic(iMidi2_2[6].xy, vec3(1, 0, 0), iSeed6);
+    bool fxb_invert = magic_trigger(vec3(iMidi2_2[6].z, 0, 0), iSeed6);
+    float mfx_value = magic(iMidi2_3[6].xy, vec3(1, 0, 0), iSeed8);
+    bool mfx_invert = magic_trigger(vec3(iMidi2_3[6].z, 0, 0), iSeed8);
+    float mix_value = magic(iMidi3_1[1].xy, vec3(1, 0, 0), iSeed7);
+    bool mix_type = magic_trigger(vec3(iMidi3_1[0].x, 0, 0), iSeed7 + 10);
+
+    // logic
+
+    const int texts[6][5] = {
+        {0x46, 0x50, 0x53, 0x00, 0x00}, // FPS
+        {0x54, 0x45, 0x4D, 0x50, 0x4F}, // TEMPO
+        {0x54, 0x49, 0x4D, 0x45, 0x00}, // TIME
+        {0x44, 0x45, 0x4D, 0x4F, 0x00}, // DEMO
+        {0x4C, 0x49, 0x56, 0x45, 0x00}, // LIVE
+        {0x2B, 0x52, 0x41, 0x4E, 0x44}, // +RAND
+    };
+
+    vec2 uv2 = uv1;
+
+    uv2 *= 10;
+    uv2.x -= 0.5;
+    uv2.y += 0.5;
+
+    vec2 uv3 = uv1 * 30;
+
+    // base frame
+    float f = 
+        h_rect(uv2, vec2(-5, -2), vec2(1), 0.1) +
+        h_rect(uv2, vec2(-2, -2), vec2(1), 0.1) +
+        rect(uv2, vec2(-3.5, -2), vec2(0.5, 0.1)) +
+        h_rect(uv2, vec2(-5, 2), vec2(1), 0.1) +
+        h_rect(uv2, vec2(-2, 2), vec2(1), 0.1) +
+        rect(uv2, vec2(-3.5, 2), vec2(0.5, 0.1)) +
+        h_rect(uv2, vec2(2, 0), vec2(1), 0.1) +
+        h_rect(uv2, vec2(5, 0), vec2(1), 0.1) +
+        rect(uv2, vec2(3.5, 0), vec2(0.5, 0.1)) +
+        rect(uv2, vec2(0.55, -2), vec2(1.5, 0.1)) +
+        rect(uv2, vec2(2, -1.55), vec2(0.1, 0.55)) +
+        rect(uv2, vec2(0.55, 2), vec2(1.5, 0.1)) +
+        rect(uv2, vec2(2, 1.55), vec2(0.1, 0.55)) +
+        rect(uv2, vec2(7.5, 0), vec2(1.5, 0.1)) +
+        h_rect(uv2, vec2(-9, -3.9), vec2(1), 0.1);
+
+    // show selected src/fx
+    f += char_at(uv2, vec2(-5.4, 1.45), hex_chars[selected_srca]);
+    f += char_at(uv2, vec2(-5.4, -2.55), hex_chars[selected_srcb]);
+    f += char_at(uv2, vec2(-2.4, 1.45), hex_chars[selected_fxa]);
+    f += fxa_invert ? rect(uv2, vec2(-2, 2.7), vec2(0.5, 0.05)) : 0;
+    f += char_at(uv2, vec2(-2.4, -2.55), hex_chars[selected_fxb]);
+    f += fxb_invert ? rect(uv2, vec2(-2, -1.3), vec2(0.5, 0.05)) : 0;
+    f += char_at(uv2, vec2(4.6, -0.55), hex_chars[selected_mfx]);
+    f += mfx_invert ? rect(uv2, vec2(5, 0.7), vec2(0.5, 0.05)) : 0;
+
+    // show current selected
+    f += iSelected == 3 ? h_rect(uv2, vec2(-5, 2), vec2(1.2), 0.1) : 0;
+    f += iSelected == 4 ? h_rect(uv2, vec2(-5, -2), vec2(1.2), 0.1) : 0;
+    f += iSelected == 5 ? h_rect(uv2, vec2(-2, 2), vec2(1.2), 0.1) : 0;
+    f += iSelected == 6 ? h_rect(uv2, vec2(-2, -2), vec2(1.2), 0.1) : 0;
+    f += iSelected == 8 ? h_rect(uv2, vec2(5, 0), vec2(1.2), 0.1) : 0;
+
+    // show selected src/fx
+    f += iActive1 == 1 ? h_rect(uv2, vec2(-5, 0.8), vec2(1, 0), 0.1) : 0;
+    f += iActive1 == 2 ? h_rect(uv2, vec2(-5, -3.2), vec2(1, 0), 0.1) : 0;
+    f += iActive2 == 1 ? h_rect(uv2, vec2(-2, 0.8), vec2(1.2, 0), 0.1) : 0;
+    f += iActive2 == 2 ? h_rect(uv2, vec2(-2, -3.2), vec2(1, 0), 0.1) : 0;
+    f += iActive2 == 3 ? h_rect(uv2, vec2(5, -1.2), vec2(1, 0), 0.1) : 0;
+
+    // show inputs / feedback
+    float line_a_a = rect(uv2, vec2(-8, 2), vec2(2, 0.1));
+    float line_a_b = rect(uv2, vec2(-7, 2), vec2(1, 0.1)) + rect(uv2, vec2(-8, 0.5), vec2(0.1, 1.6)) + rect(uv2, vec2(-9, -1), vec2(1, 0.1));
+    float line_a_f = rect(uv2, vec2(-6.5, 2), vec2(0.5, 0.1)) + rect(uv2, vec2(0, 4), vec2(7, 0.1)) + rect(uv2, vec2(-7, 3), vec2(0.1, 1.1)) + rect(uv2, vec2(7, 2), vec2(0.1, 2.1));
+    if (selected_srca == 5 && iInputFormat1 == YUYV_FOURCC) {
+        f += iInputResolution1.x > 0 ? line_a_a : line_a_f;
+    } else if (selected_srca == 10 && iInputFormat2 == YUYV_FOURCC) {
+        f += iInputResolution2.x > 0 ? line_a_b : line_a_f;
+    } else if (selected_srca % 5 == 0) {
+        f += line_a_f;
+    }
+    float line_b_a = rect(uv2, vec2(-6.5, -2), vec2(0.5, 0.1)) + rect(uv2, vec2(-7, -0.5), vec2(0.1, 1.6)) + rect(uv2, vec2(-8.5, 1), vec2(1.5, 0.1));
+    float line_b_b = rect(uv2, vec2(-8, -2), vec2(2, 0.1));
+    float line_b_f = rect(uv2, vec2(-6.5, -2), vec2(0.5, 0.1)) + rect(uv2, vec2(0, -4), vec2(7, 0.1)) + rect(uv2, vec2(-7, -3), vec2(0.1, 1.1)) + rect(uv2, vec2(7, -2), vec2(0.1, 2.1));
+    if (selected_srcb == 5 && iInputFormat1 == YUYV_FOURCC) {
+        f += iInputResolution1.x > 0 ? line_b_a : line_b_f;
+    } else if (selected_srcb == 10 && iInputFormat2 == YUYV_FOURCC) {
+        f += iInputResolution2.x > 0 ? line_b_b : line_b_f;
+    } else if (selected_srcb % 5 == 0) {
+        f += line_b_f;
+    }
+
+    // show page
+    f += char_at(uv2, vec2(-9.2, -4.3), hex_chars[iPage]);
+
+    // show fx values
+    float fx_rect = 0;
+
+    f = mix(f, 1 - f, rect(uv2, vec2(-2, 1.1 + 0.9 * fxa_value), vec2(0.9, 0.9 * fxa_value)));
+    f = mix(f, 1 - f, rect(uv2, vec2(-2, -2.9 + 0.9 * fxb_value), vec2(0.9, 0.9 * fxb_value)));
+    f = mix(f, 1 - f, rect(uv2, vec2(5, -0.9 + 0.9 * mfx_value), vec2(0.9, 0.9 * mfx_value)));
+
+    // show mix
+    f += char_at(uv2, vec2(1.55, -0.6), mix_type ? 0x4B : 0x4D);
+    f = mix(f, 1 - f, rect(uv2, vec2(2, -0.9 + 0.9 * mix_value), vec2(0.9, 0.9 * mix_value)));
+
+    // show debug info
+    float v = 0;
+    float x = 0;
+
+    x = -15;
+    f += write_5(uv3, vec2(x,13), texts[0]);
+    f += write_int(uv3, vec2(x - 3.5,13), iFPS, 3);
+    v = min(1, iFPS/60.0);
+    f += h_rect(uv3, vec2(x, 12), vec2(4, 0.5), 0.2);
+    f += rect(uv3, vec2(x + 4 * v - 4, 12), vec2(4 * v, 0.4));
+    
+    x = 0;
+    f += write_5(uv3, vec2(x,13), texts[1]);
+    f += write_int(uv3, vec2(x - 3.5,13), int(iTempo), 3);
+    v = fract(iBeats);
+    f += h_rect(uv3, vec2(x, 12), vec2(4, 0.5), 0.2);
+    f += rect(uv3, vec2(x + 4 * v - 4, 12), vec2(4 * v, 0.4));
+
+    x = 15;
+    f += write_5(uv3, vec2(x,13), texts[2]);
+    f += write_int(uv3, vec2(x - 5.5,13), int(iTime), 5);
+    v = fract(iTime);
+    f += h_rect(uv3, vec2(x, 12), vec2(4, 0.5), 0.2);
+    f += rect(uv3, vec2(x + 4 * v - 4, 12), vec2(4 * v, 0.4));
+
+    if (iAutoRand > 0) {
+        f += write_5(uv3, vec2(-4,-15), iDemo > 0 ? texts[3] : texts[4]);
+        f += write_5(uv3, vec2(0,-15), texts[5]);
+    } else {
+        f += write_5(uv3, vec2(-2,-15), iDemo > 0 ? texts[3] : texts[4]);
+    }
+
+    return vec4(f);
+}
+
+#endif
\ No newline at end of file
diff --git a/default/inc_functions.glsl b/default/inc_functions.glsl
new file mode 100644
index 0000000..30f0d46
--- /dev/null
+++ b/default/inc_functions.glsl
@@ -0,0 +1,286 @@
+#ifndef PI
+#define PI 3.1415927
+#endif
+
+#include inc_res.glsl
+
+#ifndef INC_FUNCTIONS
+#define INC_FUNCTIONS
+
+// BASICS
+
+float ease(float x) {
+    return 0.5 - cos(max(min(x, 1.0), 0.0)*PI) * 0.5;
+}
+
+vec2 ease(vec2 x) {
+    return 0.5 - cos(max(min(x, 1.0), 0.0)*PI) * 0.5;
+}
+
+vec3 ease(vec3 x) {
+    return 0.5 - cos(max(min(x, 1.0), 0.0)*PI) * 0.5;
+}
+
+float saw(float x){
+    return abs(mod(x+1,2)-1);
+}
+
+vec2 saw(vec2 x){
+    return abs(mod(x+1,2)-1);
+}
+
+vec3 saw(vec3 x){
+    return abs(mod(x+1,2)-1);
+}
+
+float cmod(float x, float k){
+    return mod(x + k * 0.5, k) - k * 0.5;
+}
+
+vec2 cmod(vec2 x, float k){
+    return mod(x + k * 0.5, k) - k * 0.5;
+}
+
+vec3 cmod(vec3 x, float k){
+    return mod(x + k * 0.5, k) - k * 0.5;
+}
+
+// COLORS
+
+vec3 col(float x){
+    return vec3(
+        .5*(sin(x*2.*PI)+1.),
+        .5*(sin(x*2.*PI+2.*PI/3.)+1.),
+        .5*(sin(x*2.*PI-2.*PI/3.)+1.)
+    );
+}
+
+vec3 shift(vec3 c, float f) {
+    return vec3(
+        c.x * (1 - f) + c.y * f,
+        c.y * (1 - f) + c.z * f,
+        c.z * (1 - f) + c.x * f
+    );
+}
+
+vec3 shift3(vec3 c, float f) {
+    return shift(shift(shift(c, f), f), f);
+}
+
+float mean(vec3 v)
+{
+    return v.x * 0.3333 + v.y * 0.3333 + v.z * 0.3333;
+}
+
+float mean(vec4 v)
+{
+    return v.x * 0.3333 + v.y * 0.3333 + v.z * 0.3333;
+}
+
+// OTHER
+
+mat2 rot(float angle){
+    return mat2(
+        cos(angle*2.*PI),-sin(angle*2.*PI),
+        sin(angle*2.*PI),cos(angle*2.*PI)
+    );
+}
+
+// EFFECTS
+
+vec2 lens(vec2 uv, float limit, float power) {
+    return uv * (1 + limit + length(uv * power));
+}
+
+vec2 kal(vec2 uv, float n) {
+    float t = atan(uv.y, uv.x) + PI * 0.5;
+    float q = 3.0 / (2.0 * PI);
+    t = abs(mod(t + PI / (n), 2 * PI / n) - PI / (n));
+    return length(uv) * vec2(
+        cos(t),
+        sin(t)
+    );
+}
+
+vec2 kal2(vec2 uv, float n) {
+    float t = atan(uv.y, uv.x) + PI * 0.5;
+    float t2 = abs(mod(t + PI / n, 2 * PI / n) - PI / n);
+    return length(uv) * vec2(
+        cos(t2),
+        sin(t2)
+    );
+}
+
+// NOISE
+
+float noise(vec2 n)
+{
+    const vec2 d = vec2(0, 1);
+    vec2 b = floor(n);
+    vec2 f = fract(n);
+    f *= f * (3 - 2 * f);
+    return mix(mix(rand(b), rand(b + d.yx), f.x), mix(rand(b + d.xy), rand(b + d.yy), f.x), f.y);
+}
+
+float noise_f(vec2 n, int f)
+{
+    float o = noise(n) / 2;
+    o += mix(o, noise(n * 2), f > 1 ? 1 : 0) / 4;
+    o += mix(o, noise(n * 4), f > 2 ? 1 : 0) / 8;
+    o += mix(o, noise(n * 8), f > 3 ? 1 : 0) / 16;
+    o += mix(o, noise(n * 16), f > 4 ? 1 : 0) / 32;
+    return o;
+}
+
+// VORONOI
+
+float v_index(vec2 uv) {
+    return floor(uv.x) + floor(uv.y) * 45;
+}
+
+vec2 v_pos(float i) {
+    int iTimeId = int(iBeats);
+    float iTimeV = iBeats - iTimeId;
+
+    float x0 = rand(i + 823 + iTimeId);
+    float y0 = rand(i + 328 + iTimeId);
+    
+    float x1 = rand(i + 823 + iTimeId + 1);
+    float y1 = rand(i + 328 + iTimeId + 1);
+    
+    return vec2(
+        mix(x0, x1, ease(ease(iTimeV))),
+        mix(y0, y1, ease(ease(iTimeV)))
+    );
+}
+
+vec4 voronoi(vec2 uv, float dist) {
+    vec4 o = vec4(0, 0, 2, 0);
+    vec4 t = vec4(0, 0, 2, 0);
+    float d, i;
+    vec2 uv2, p;
+    for (int dx = -1; dx <= 1; dx++) {
+        for (int dy = -1; dy <= 1; dy++) {
+            uv2 = vec2(floor(uv.x) + dx, floor(uv.y) + dy);
+            i = v_index(uv2);
+            p = uv2 + v_pos(i) * dist;
+            d = length(p - uv);
+            if (d < o.z) {
+                t = o;
+                o = vec4(p, d, i);
+            } else if (d < t.z) {
+                t = vec4(p, d, i);
+            }
+        }
+    }
+    return vec4(o.z, t.z, o.w, t.w);
+}
+
+// SHAPES
+
+float stripe(float x, float k1, float k2)
+{
+    return k2 > k1 ? (1 - step(x, k1)) * (step(x, k2)) : ((1 - step(x, k2)) * (step(x, k1)));
+}
+
+float capsule(vec2 uv, float r, float d, float a)
+{
+    uv *= rot(a);
+    float f1 = step(uv.x, r) * step(-uv.x, r) * step(uv.y, d - r) * step(-uv.y, d - r);
+    float f2 = step(length(uv - vec2(0, d - r)), r);
+    float f3 = step(length(uv + vec2(0, d - r)), r);
+    return min(1, f1 + f2 + f3);
+}
+
+float rect(vec2 uv, vec2 c, vec2 size) {
+    uv -= c;
+    return step(abs(uv.x), size.x) * step(abs(uv.y), size.y);
+}
+
+float h_rect(vec2 uv, vec2 c, vec2 size, float k) {
+    return rect(uv, c, size + k * 0.5) - rect(uv, c, size - k * 0.5);
+}
+
+// INPUTS
+
+vec4 reframe(sampler2D tex, vec2 uv)
+{
+    uv = uv * vec2(iResolution.y / iResolution.x, 1)  + .5;
+    uv = saw(uv);
+    return texture(tex, uv);
+}
+
+vec4 reframe_b(sampler2D tex, vec2 uv)
+{
+    uv = uv * vec2(iResolution.y / iResolution.x, 1)  + .5;
+    return texture(tex, uv);
+}
+
+// BLUR
+
+float gaussian_weight(float x, float sigma)
+{
+    return exp(-(x * x) / (2.0 * sigma * sigma));
+}
+
+vec4 gauss(sampler2D tex, vec2 uv, const int kernel_size, float spm, float sigma, float bloom)
+{
+    int x, y;
+    vec2 offset;
+    float w;
+    vec4 sum = vec4(0);
+    float weight_sum = 0;
+    for (y = -kernel_size; y <= kernel_size; ++y) {
+        for (x = -kernel_size; x <= kernel_size; ++x) {
+            offset = vec2(x, y) * spm;
+            w = gaussian_weight(length(vec2(x, y)), sigma);
+            sum += texture(tex, uv + offset) * w;
+            weight_sum += w;
+        }
+    }
+    return (sum / weight_sum) * bloom;
+}
+
+vec4 gauss(sampler2D tex, vec2 uv, const int kernel_size, float spm, float sigma)
+{
+    return gauss(tex, uv, kernel_size, spm, sigma, 1.0);
+}
+
+vec4 gauss(sampler2D tex, vec2 uv, const int kernel_size, float spm)
+{
+    return gauss(tex, uv, kernel_size, spm, 2.0);
+}
+
+vec4 gauss(sampler2D tex, vec2 uv, const int kernel_size)
+{
+    return gauss(tex, uv, kernel_size, 1 / max(iResolution.x, iResolution.y));
+}
+
+vec4 gauss(sampler2D tex, vec2 uv)
+{
+    return gauss(tex, uv, 3);
+}
+
+float dither(vec2 uv, float x)
+{
+    bool o = false;
+    o = o || x * 16 >= 1 && floor(mod(uv.x, 4)) == 0 && floor(mod(uv.y, 4)) == 0;
+    o = o || x * 16 >= 2 && floor(mod(uv.x, 4)) == 2 && floor(mod(uv.y, 4)) == 2;
+    o = o || x * 16 >= 3 && floor(mod(uv.x, 4)) == 0 && floor(mod(uv.y, 4)) == 2;
+    o = o || x * 16 >= 4 && floor(mod(uv.x, 4)) == 2 && floor(mod(uv.y, 4)) == 0;
+    o = o || x * 16 >= 5 && floor(mod(uv.x, 4)) == 1 && floor(mod(uv.y, 4)) == 1;
+    o = o || x * 16 >= 6 && floor(mod(uv.x, 4)) == 3 && floor(mod(uv.y, 4)) == 3;
+    o = o || x * 16 >= 7 && floor(mod(uv.x, 4)) == 1 && floor(mod(uv.y, 4)) == 3;
+    o = o || x * 16 >= 8 && floor(mod(uv.x, 4)) == 3 && floor(mod(uv.y, 4)) == 1;
+    o = o || x * 16 >= 9 && floor(mod(uv.x, 4)) == 1 && floor(mod(uv.y, 4)) == 0;
+    o = o || x * 16 >= 10 && floor(mod(uv.x, 4)) == 3 && floor(mod(uv.y, 4)) == 2;
+    o = o || x * 16 >= 11 && floor(mod(uv.x, 4)) == 1 && floor(mod(uv.y, 4)) == 2;
+    o = o || x * 16 >= 12 && floor(mod(uv.x, 4)) == 3 && floor(mod(uv.y, 4)) == 0;
+    o = o || x * 16 >= 13 && floor(mod(uv.x, 4)) == 0 && floor(mod(uv.y, 4)) == 1;
+    o = o || x * 16 >= 14 && floor(mod(uv.x, 4)) == 2 && floor(mod(uv.y, 4)) == 3;
+    o = o || x * 16 >= 15 && floor(mod(uv.x, 4)) == 0 && floor(mod(uv.y, 4)) == 3;
+    o = o || x * 16 >= 16 && floor(mod(uv.x, 4)) == 2 && floor(mod(uv.y, 4)) == 1;
+    return o ? 1 : 0;
+}
+
+#endif
diff --git a/default/inc_fx.glsl b/default/inc_fx.glsl
new file mode 100644
index 0000000..57120a7
--- /dev/null
+++ b/default/inc_fx.glsl
@@ -0,0 +1,418 @@
+#include inc_res.glsl
+#include inc_magic.glsl
+#include inc_functions.glsl
+
+#ifndef INC_FX
+#define INC_FX
+
+vec4 fx_master(vec3 c0, vec3 c, int seed, vec3 m0) {
+    float fx = magic(m0.xy, vec3(1,0,0), seed);
+    bool invert = magic_trigger(vec3(m0.z, 0, 0), seed);
+
+    vec3 c_out = mix(c0, c, fx);
+
+    c_out = mix(c_out, 1 - c_out, invert ? 1 : 0);
+
+    return vec4(c_out, 1.0);
+}
+
+subroutine vec4 fx_stage_sub(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0);
+
+subroutine uniform fx_stage_sub fx_stage;
+
+// FX 1 : thru
+subroutine(fx_stage_sub) vec4 fx_1(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
+{
+    // start
+
+	vec2 uv0 = vUV.st;
+
+    // controls
+
+    float hue = magic(f1, b1, seed + 10);
+    float saturation = magic(f2, b2, seed + 20);
+    float light = magic(f3, b3, seed + 30);
+
+    // logic
+
+    vec3 c0 = texture(previous, uv0).xyz;
+    vec3 c = c0;
+    c = shift3(c, hue);
+    c *= 1 + saturation;
+    c = mix(c + light * 2.0, c - (1 - light) * 2.0, step(0.5, light));
+
+    return fx_master(c0, c, seed, m0);
+}
+
+// FX 2 : feedback + shift
+vec4 fx_shift(vec2 vUV, sampler2D src0, sampler2D src1, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
+{
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    float zoom = magic(f1, b1, seed + 10);
+    float x_shift = magic(f2, b2, seed + 20);
+    float y_shift = magic(f3, b3, seed + 30);
+
+    // logic
+    
+    vec3 c0 = texture(src0, uv0).xyz;
+    
+    vec2 uv2 = uv1;
+    uv2 = mix(uv2 * (1 + zoom * 2), uv2 * (zoom), step(0.5, zoom));
+    uv2 += vec2(x_shift * ratio, y_shift) * 2;
+    vec3 c = reframe(src1, uv2).xyz;
+
+    return fx_master(c0, c, seed, m0);
+}
+
+subroutine(fx_stage_sub) vec4 fx_2(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
+{
+    return fx_shift(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
+}
+
+// FX 3 : shift
+subroutine(fx_stage_sub) vec4 fx_3(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
+{
+    return fx_shift(vUV, previous, previous, seed, b1, f1, b2, f2, b3, f3, m0);
+}
+
+// FX 4 : colorize
+subroutine(fx_stage_sub) vec4 fx_4(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
+{
+    // start
+
+	vec2 uv0 = vUV.st;
+
+    // controls
+
+    float c_black = magic(f1, b1, seed + 10);
+    bool c_black_trigger = magic_trigger(b1, seed + 10);
+    float c_white = magic(f2, b2, seed + 20);
+    bool c_white_trigger = magic_trigger(b2, seed + 20);
+    float delta = magic(f3, b3, seed + 30);
+
+    // logic
+
+    vec3 c0 = texture(previous, uv0).xyz;
+
+    float f = mean(c0);
+    float c_mix = mix(c_black, c_white, f) + delta;
+    vec3 c = mix(c_black_trigger ? col(c_mix) : vec3(0), c_white_trigger ? col(c_mix) : vec3(1), f);
+
+    return fx_master(c0, c, seed, m0);
+}
+
+// FX 5 : quantize
+subroutine(fx_stage_sub) vec4 fx_5(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
+{
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    float pixel_size = magic(f1, b1, seed + 10);
+    float quantize = magic(f2, b2, seed + 20);
+    bool quantize_trigger = magic_trigger(b2, seed + 20);
+    float blur = magic(f3, b3, seed + 30);
+
+    // logic
+
+    vec3 c0 = texture(previous, uv0).xyz;
+    
+    vec2 uv2 = uv1;
+    float pixel = (1 - pixel_size) * 250 + 25;
+    uv2 = round(uv2 * pixel) / pixel;
+    vec3 c = gauss(previous, uv2 * vec2(1 / ratio, 1)  + .5, 3, 0.005 * blur).xyz;
+    float colors = (1 - quantize) * 10 + 1;
+    if (quantize_trigger) {
+        c = round(c * colors) / colors;
+    }
+    // c = mix(c, 1 - c, step(noise_f(uv0 * 10 + vec2(iTime * 0.1, 0), 5), 0.5));
+
+    return fx_master(c0, c, seed, m0);
+}
+
+// FX 6 : dithering
+subroutine(fx_stage_sub) vec4 fx_6(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
+{
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    float pixel_size = magic(f1, b1, seed + 10);
+    bool pixel_size_trigger = magic_trigger(b1, seed + 10);
+    float quantize = magic(f2, b2, seed + 20);
+    bool quantize_trigger = magic_trigger(b2, seed + 20);
+    float blur = magic(f3, b3, seed + 30);
+
+    // logic
+
+    vec3 c0 = texture(previous, uv0).xyz;
+
+    vec2 uv2 = uv1;
+    float k1 = pow(2, 10 - floor(pixel_size * 5));
+    float pixel = (1 - pixel_size) * 250 + 25;
+    if (pixel_size_trigger) {
+        uv2 = floor(uv2 * k1) / k1;
+    }
+    vec3 c = gauss(previous, uv2 * vec2(1 / ratio, 1)  + .5, 3, 0.005 * blur).xyz;
+    float k3 = pow(2, 5 - floor(quantize * 5));
+    if (quantize_trigger) {
+        c *= k3;
+        c = vec3(
+            mix(floor(c.x), ceil(c.x), dither(uv2 * k1, c.x - floor(c.x))),
+            mix(floor(c.y), ceil(c.y), dither(uv2 * k1, c.y - floor(c.y))),
+            mix(floor(c.z), ceil(c.z), dither(uv2 * k1, c.z - floor(c.z)))
+        );
+        c /= k3;
+    }
+
+    return fx_master(c0, c, seed, m0);
+}
+
+// FX 7 : tv
+subroutine(fx_stage_sub) vec4 fx_7(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
+{
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    float lens_v = magic(f1, b1, seed + 10);
+    float horizontal_noise = magic(f2, b2, seed + 20);
+    float zoom = magic(f3, b3, seed + 30);
+
+    // logic
+    
+    vec3 c0 = texture(previous, uv0).xyz;
+    
+    vec2 uv2 = uv1;
+    float k1 = lens_v * 0.5;
+    uv2 *= 1 + zoom * 2;
+    uv2 = lens(uv2, -k1, k1);
+    float k = horizontal_noise;
+    vec3 c = vec3(
+        reframe_b(previous, uv2 + vec2((rand(uv0.y * 1000 + iTime) - 0.5) * k * 0.1)).x,
+        reframe_b(previous, uv2 + vec2((rand(uv0.y * 1100 + iTime) - 0.5) * k * 0.1)).y,
+        reframe_b(previous, uv2).z
+    );
+
+    return fx_master(c0, c, seed, m0);
+}
+
+// FX 8 : kaleidoscope
+subroutine(fx_stage_sub) vec4 fx_8(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
+{
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    float axes = magic(f1, b1, seed + 10);
+    float axes_trigger = magic_b(b1, seed + 10).x;
+    float rotation = magic(f2, b2, seed + 20);
+    float h_scroll = magic(f3, b3, seed + 30);
+
+    // logic
+
+    vec3 c0 = texture(previous, uv0).xyz;
+    
+    vec2 uv2 = uv1;
+    uv2 = mix(uv2, kal2(uv2 * rot(0.25), floor(axes * 9 + 1)) * vec2(1, -2) + vec2(0, -0.5), axes_trigger);    
+    uv2 *= rot(rotation);
+    uv2.x = (saw(uv2.x / ratio + 0.5 + h_scroll * 2) - 0.5) * ratio;
+    vec3 c = reframe(previous, uv2).xyz;
+
+    return fx_master(c0, c, seed, m0);
+}
+
+#include inc_cp437.glsl
+
+// FX 9 : cp437
+subroutine(fx_stage_sub) vec4 fx_9(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
+{
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    float zoom = magic(f1, b1, seed + 10);
+    vec2 charset = magic_f(f2, b2, seed + 20);
+    vec3 charset_ctrl = magic_b(b2, seed + 20);
+    float char_delta = magic(f3, b3, seed + 30);
+    float t = magic(seed + 40); 
+
+    // logic
+
+    vec3 c0 = texture(previous, uv0).xyz;
+    
+    vec2 uv2 = uv1;
+    float k1 = 100 * (1 - zoom) + 10;
+    float inv_k = 1 / k1;
+    uv2 = floor(uv2 * k1) * inv_k;
+    int start_char = charset_ctrl.x > 0 ? charsets[int(charset.x * CHARSETS) * 2] : 0x01;
+    int char_span = int((charset_ctrl.x > 0 ? charsets[int(charset.x * CHARSETS) * 2 + 1] : 255));
+    char_span = int(char_span * max(1 - charset.y, 1 / (char_span * 0.75)));
+    ivec2 uv2i = ivec2(uv2 * k1);
+    int code = ((charset_ctrl.y < 1 || (uv2i.x % 2 ^ uv2i.y % 2) > 0) ? 1 : 0) * (start_char + int((rand(uv2i) + char_delta) * char_span) % char_span);
+    vec3 c = reframe(previous, uv2 + vec2(0, 0) * inv_k * 0.125).xyz * 0.2
+        + reframe(previous, uv2 + vec2(1, 0) * inv_k * 0.125).xyz * 0.2
+        + reframe(previous, uv2 + vec2(1, 1) * inv_k * 0.125).xyz * 0.2
+        + reframe(previous, uv2 + vec2(0, 1) * inv_k * 0.125).xyz * 0.2
+        + reframe(previous, uv2 + vec2(0.5, 0.5) * inv_k * 0.125).xyz * 0.2;
+    c = char(mod(uv1 * k1, 1), code) ? c : vec3(0);
+
+    return fx_master(c0, c, seed, m0);
+}
+
+// FX 10 : lens
+subroutine(fx_stage_sub) vec4 fx_10(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
+{
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    float lens_v1 = magic(f1, b1, seed + 10);
+    float lens_v2 = magic(f2, b2, seed + 20);
+    float zoom = magic(f3, b3, seed + 30);
+    float k = magic(seed + 40);
+
+    // logic
+
+    vec3 c0 = texture(previous, uv0).xyz;
+    
+    vec2 uv2 = uv1;
+    uv2 *= 1 + zoom * 2;
+    uv2 = lens(uv2, -lens_v2 * 10, lens_v1 * 10);
+    vec3 c = reframe(previous, uv2).xyz;
+
+    return fx_master(c0, c, seed, m0);
+}
+
+// TODO FX 11
+subroutine(fx_stage_sub) vec4 fx_11(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
+{
+    return fx_1(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    // logic
+    
+    vec3 c0 = texture(previous, uv0).xyz;
+    vec3 c = c0;
+
+    return fx_master(c0, c, seed, m0);
+}
+
+// TODO FX 12
+subroutine(fx_stage_sub) vec4 fx_12(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
+{
+    return fx_2(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    // logic
+    
+    vec3 c0 = texture(previous, uv0).xyz;
+    vec3 c = c0;
+
+    return fx_master(c0, c, seed, m0);
+}
+
+// TODO FX 13
+subroutine(fx_stage_sub) vec4 fx_13(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
+{
+    return fx_3(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    // logic
+    
+    vec3 c0 = texture(previous, uv0).xyz;
+    vec3 c = c0;
+
+    return fx_master(c0, c, seed, m0);
+}
+
+// TODO FX 14
+subroutine(fx_stage_sub) vec4 fx_14(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
+{
+    return fx_4(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    // logic
+
+    vec3 c0 = texture(previous, uv0).xyz;
+    vec3 c = c0;
+
+    return fx_master(c0, c, seed, m0);
+}
+
+// TODO FX 15
+subroutine(fx_stage_sub) vec4 fx_15(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
+{
+    return fx_5(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    // logic
+    
+    vec3 c0 = texture(previous, uv0).xyz;
+    vec3 c = c0;
+
+    return fx_master(c0, c, seed, m0);
+}
+
+#endif
\ No newline at end of file
diff --git a/default/inc_magic.glsl b/default/inc_magic.glsl
new file mode 100644
index 0000000..74e0d31
--- /dev/null
+++ b/default/inc_magic.glsl
@@ -0,0 +1,71 @@
+#include inc_time.glsl
+
+#ifndef INC_MAGIC
+#define INC_MAGIC
+
+uniform int iDemo;
+
+vec2 magic_f(vec2 F, vec3 B, float i)
+{
+    return vec2(
+        mix(F.x, randTime(i + 1), min(1, B.z + iDemo)),
+        mix(F.y, randTime(i + 2), min(1, B.z + iDemo))
+    );
+}
+
+vec2 magic_f(float i)
+{
+    return magic_f(vec2(0), vec3(0, 0, 1), i);
+}
+
+vec3 magic_b(vec3 B, float i)
+{
+    return vec3(
+        mix(B.x, step(0.2, randTime(i + 3)), min(1, B.z + iDemo)),
+        mix(B.y, step(0.5, randTime(i + 4)), min(1, B.z + iDemo)),
+        min(1, B.z + iDemo)
+    );
+}
+
+vec3 magic_b(float i)
+{
+    return magic_b(vec3(0, 0, 1), i);
+}
+
+bool magic_trigger(vec3 B, float i)
+{
+    return magic_b(B, i).x > 0;
+}
+
+bool magic_trigger(float i)
+{
+    return magic_b(i).x > 0;
+}
+
+float magic(vec2 F, vec3 B, float i)
+{
+    vec2 f = magic_f(F, B, i);
+    vec3 b = magic_b(B, i);
+
+    return mix(0, f.x * mix(1 - modTime(f.y), cosTime(f.y) * 0.5 + 0.5, b.y), b.x);
+}
+
+float magic(float i)
+{
+    return magic(vec2(0), vec3(0, 0, 1), i);
+}
+
+float magic_reverse(vec2 F, vec3 B, float i)
+{
+    vec2 f = magic_f(F, B, i);
+    vec3 b = magic_b(B, i);
+
+    return mix(0, f.x * mix(1 - modTime(f.y), modTime(f.y), b.y), b.x);
+}
+
+float magic_reverse(float i)
+{
+    return magic_reverse(vec2(0), vec3(0, 0, 1), i);
+}
+
+#endif
\ No newline at end of file
diff --git a/default/inc_rand.glsl b/default/inc_rand.glsl
new file mode 100644
index 0000000..d6c6449
--- /dev/null
+++ b/default/inc_rand.glsl
@@ -0,0 +1,14 @@
+#ifndef INC_RAND
+#define INC_RAND
+
+float rand(float seed){
+    float v=pow(abs(seed),6./7.);
+    v*=sin(v)+1.;
+    return fract(v);
+}
+
+float rand(vec2 n){
+    return rand(n.x * 1234 + n.y * 9876);
+}
+
+#endif
\ No newline at end of file
diff --git a/default/inc_res.glsl b/default/inc_res.glsl
new file mode 100644
index 0000000..8e95ccf
--- /dev/null
+++ b/default/inc_res.glsl
@@ -0,0 +1,7 @@
+#ifndef INC_BASE
+#define INC_BASE
+
+uniform vec2 iResolution;
+uniform vec2 iTexResolution;
+
+#endif
\ No newline at end of file
diff --git a/default/inc_sentences.glsl b/default/inc_sentences.glsl
new file mode 100644
index 0000000..8787831
--- /dev/null
+++ b/default/inc_sentences.glsl
@@ -0,0 +1,29 @@
+#ifndef INC_SENTENCES
+#define INC_SENTENCES
+
+#define SENTENCE_COUNT 17
+
+const int sentences[SENTENCE_COUNT][20] = {
+    {0x66, 0x6F, 0x72, 0x67, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x46, 0x4F, 0x52, 0x47, 0x45, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x46, 0x2E, 0x4F, 0x2E, 0x52, 0x2E, 0x47, 0x2E, 0x45, 0x2E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x46, 0x75, 0x73, 0x69, 0x6F, 0x6E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x4F, 0x66, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x52, 0x65, 0x61, 0x6C, 0x2D, 0x74, 0x69, 0x6D, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x47, 0x65, 0x6E, 0x65, 0x72, 0x61, 0x74, 0x69, 0x76, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x45, 0x66, 0x66, 0x65, 0x63, 0x74, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x45, 0x76, 0x65, 0x72, 0x79, 0x74, 0x68, 0x69, 0x6E, 0x67, 0x20, 0x79, 0x6F, 0x75, 0x20, 0x73, 0x65, 0x65, 0x00, 0x00},
+    {0x50, 0x69, 0x78, 0x65, 0x6C, 0x20, 0x62, 0x79, 0x20, 0x70, 0x69, 0x78, 0x65, 0x6C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x4C, 0x69, 0x76, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x47, 0x65, 0x6E, 0x65, 0x72, 0x61, 0x74, 0x65, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x43, 0x6F, 0x6E, 0x74, 0x72, 0x6F, 0x6C, 0x6C, 0x65, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x3C0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x4B, 0x6C, 0x65, 0x3C0, 0x65, 0x6B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x43, 0x6F, 0x64, 0x65, 0x20, 0x61, 0x73, 0x20, 0x61, 0x72, 0x74, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x41, 0x72, 0x74, 0x20, 0x61, 0x73, 0x20, 0x63, 0x6F, 0x64, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+};
+
+const int lengths[SENTENCE_COUNT] = {
+    5, 5, 10, 6, 2, 9, 10, 7, 18, 14, 4, 9, 10, 1, 6, 11, 11
+};
+#endif
\ No newline at end of file
diff --git a/default/inc_src.glsl b/default/inc_src.glsl
new file mode 100644
index 0000000..480effd
--- /dev/null
+++ b/default/inc_src.glsl
@@ -0,0 +1,356 @@
+#include inc_res.glsl
+#include inc_magic.glsl
+#include inc_functions.glsl
+
+#ifndef INC_SRC
+#define INC_SRC
+
+uniform sampler2D iTex0;
+uniform sampler2D iTex3;
+uniform sampler2D iTex4;
+
+subroutine vec4 src_stage_sub(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3);
+
+vec4 src_thru(vec2 vUV, sampler2D tex, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+{
+    // start
+
+	vec2 uv0 = vUV.st;
+
+    // controls
+
+    float hue = magic(f1, b1, seed + 10);
+    float saturation = magic(f2, b2, seed + 20);
+    float light = magic(f3, b3, seed + 30);
+
+    // logic
+
+    vec3 c = texture(tex, uv0).xyz;
+
+    c = shift3(c, hue);
+
+    c *= 1 + saturation;
+    c = mix(c + light * 2.0, c - (1 - light) * 2.0, step(0.5, light));
+
+    // output
+
+   return vec4(c, 1.);
+}
+
+// SRC 1: feedback + thru
+subroutine(src_stage_sub) vec4 src_1(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+{
+    return src_thru(vUV, iTex0, seed, b1, f1, b2, f2, b3, f3);
+}
+
+// SRC 2 : lines
+subroutine(src_stage_sub) vec4 src_2(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+{
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    float thickness = magic(f1, b1, seed + 10);
+    float rotation = magic(f2, b2, seed + 20);
+    float distort = magic(f3, b3, seed + 30);
+
+    // logic
+
+    vec2 uv2 = uv1;
+    uv2.y *= cos(uv2.x * 5 * distort);
+    uv2 *= rot(rotation + iBeats / 16);
+    float k = thickness * 2;
+    uv2.y = cmod(uv2.y, k * 2 + 0.1);
+    float f = step(uv2.y, k * 0.125 + 0.05) * step(-uv2.y, k * 0.125 + 0.01);
+    
+    return vec4(f);
+}
+
+// SRC 3 : dots
+subroutine(src_stage_sub) vec4 src_3(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+{
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    float zoom = magic(f1, b1, seed + 10);
+    float rotation = magic(f2, b2, seed + 20);
+    float lens_v = magic(f3, b3, seed + 30);
+
+    // logic
+
+    vec2 uv2 = uv1;
+    float k1 = lens_v * 5;
+    uv2 = lens(uv2, -k1, k1);
+    uv2 = kal(uv2, 5);
+    uv2 *= rot(rotation + iBeats / 16);
+    float k = zoom * 0.1 + 0.05;
+    uv2 = cmod(uv2, k * 2);
+    float f = step(length(uv2), k / (1 + length(uv1) * 2));
+    
+    return vec4(f);
+}
+
+// SRC 4 : waves
+subroutine(src_stage_sub) vec4 src_4(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+{
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    float spacing = magic(f1, b1, seed + 10);
+    float thickness = magic(f2, b2, seed + 20);
+    float scroll = magic_reverse(f3, b3, seed + 30);
+
+    // logic
+
+    vec2 uv2 = uv1;
+    uv2.y += 0.5;
+    uv2 *= 2.25;
+    uv2 = vec2((uv2.x + 1) * 0.5, -uv2.y);
+    float m1 = spacing * 4.5 + 0.5;
+    float y = log(-uv2.y) * m1;
+    y = mod(y + scroll * 5.0 - iBeats / 16, 5.);
+    float id = floor(y) * 32;
+    float s = cos(uv2.x * rand(id + 837) * 100 + rand(id + 281) * PI)
+                + cos(uv2.x * rand(id + 231) * 100 + rand(id + 526) * PI)
+                + cos(uv2.x * rand(id + 746) * 100 + rand(id + 621) * PI)
+                + cos(uv2.x * rand(id + 235) * 100 + rand(id + 315) * PI)
+                + cos(uv2.x * rand(id + 782) * 100 + rand(id + 314) * PI)
+                + cos(uv2.x * rand(id + 241) * 100 + rand(id + 734) * PI)
+                + cos(uv2.x * rand(id + 416) * 100 + rand(id + 425) * PI)
+                + cos(uv2.x * rand(id + 315) * 100 + rand(id + 525) * PI)
+                + cos(uv2.x * rand(id + 423) * 100 + rand(id + 743) * PI)
+                + cos(uv2.x * rand(id + 637) * 100 + rand(id + 245) * PI);
+    s *= 0.1;
+    float cut =  0.025 + thickness * 0.475;
+    float y2 = min(1.0, -(uv2.y));
+    float f = (0.1 + 0.9 * (cos((y2 + 1.0) * PI) * 0.5 + 0.5)) * step(uv2.y, 0.) * step(fract(y + (s - 1) * (1 - cut) * 0.5), cut);//step(uv2.y, 0.) * mod(-uv2.y * 1.0, 1.0);
+    
+    return vec4(f);
+}
+
+// SRC 5 : noise
+subroutine(src_stage_sub) vec4 src_5(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+{
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    float zoom = magic(f1, b1, seed + 10);
+    float voronoi_distort = magic(f2, b2, seed + 20);
+    float details = magic(f3, b3, seed + 30);
+    float noise_factor = magic(seed + 40);
+
+    // logic
+
+    vec2 uv2 = uv1;
+    uv2 *= zoom * 20 + 3;
+    uv2.x += iBeats;
+    vec4 data = voronoi(uv2, voronoi_distort);
+    float f = data.x / (data.x + data.y);
+    f = sin(f * PI * (details * 20)) * 0.5 + 1;
+    int nf = int(noise_factor * 6);
+    f *= mix(1, noise_f(uv2, nf - 1), step(0.0, float(nf)));
+    
+    return vec4(f);
+}
+
+// SRC 6 : video in 1 + thru
+subroutine(src_stage_sub) vec4 src_6(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+{
+    return src_thru(vUV, iTex3, seed, b1, f1, b2, f2, b3, f3);
+}
+
+#include inc_cp437.glsl
+
+// SRC 7 : cp437
+subroutine(src_stage_sub) vec4 src_7(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+{
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    float zoom = magic(f1, b1, seed + 10);
+    vec2 charset = magic_f(f2, b2, seed + 20);
+    vec3 charset_ctrl = magic_b(b2, seed + 20);
+    float char_delta = magic(f3, b3, seed + 30);
+
+    // logic
+
+    vec2 uv2 = uv1;
+    uv2 *= zoom * 20 + 3;
+    uv2 += iBeats;
+    uv2 = mod(uv2, 100) + 100;
+    int start_char = charset_ctrl.x > 0 ? charsets[int(charset.x * CHARSETS) * 2] : 0x01;
+    int char_span = int((charset_ctrl.x > 0 ? charsets[int(charset.x * CHARSETS) * 2 + 1] : 255));
+    char_span = int(char_span * max(1 - charset.y, 1 / (char_span * 0.75)));
+    ivec2 uv2i = ivec2(uv2);
+    int code = ((charset_ctrl.y < 1 || (uv2i.x % 2 ^ uv2i.y % 2) > 0) ? 1 : 0) * (start_char + int((rand(uv2i) + char_delta) * char_span) % char_span);
+    uv2 = mod(uv2, 1);
+    float f = char(uv2, code) ? 1 : 0;
+    
+    return vec4(f);
+}
+
+// SRC 8 : sentences
+
+#include inc_sentences.glsl
+
+subroutine(src_stage_sub) vec4 src_8(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+{
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    float zoom = magic(f1, b1, seed + 10);
+    float sentence = magic_reverse(f2, b2, seed + 20);
+    float h_delta = magic(f3, b3, seed + 30);
+    vec3 h_delta_b = magic_b(b3, seed + 30);
+
+    // logic
+
+    vec2 uv2 = uv1;
+    uv2 *= (1 + zoom) * 12;
+    int s = int(sentence * (SENTENCE_COUNT - 1));
+    uv2.x += floor(uv2.y) * (h_delta - 0.5) * 2;
+    uv2.y = mix(uv2.y, mod(uv2.y, 1), h_delta_b.x);
+    float f = write_20(uv2, vec2(-float(lengths[s]) * 0.5, 0), sentences[s]);
+    
+    return vec4(f);
+}
+
+// TODO SRC 9
+subroutine(src_stage_sub) vec4 src_9(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+{
+    return src_2(vUV, seed, b1, f1, b2, f2, b3, f3);
+
+    // start
+
+    vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    // logic
+    
+    return texture(iTex0, vUV);
+}
+
+// TODO SRC 10
+subroutine(src_stage_sub) vec4 src_10(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+{
+    return src_3(vUV, seed, b1, f1, b2, f2, b3, f3);
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    // logic
+    
+    return texture(iTex0, vUV);
+}
+
+// SRC 11 : video in 2 + thru
+subroutine(src_stage_sub) vec4 src_11(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+{
+    return src_thru(vUV, iTex4, seed, b1, f1, b2, f2, b3, f3);
+}
+
+// TODO SRC 12
+subroutine(src_stage_sub) vec4 src_12(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+{
+    return src_4(vUV, seed, b1, f1, b2, f2, b3, f3);
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    // logic
+    
+    return texture(iTex0, vUV);
+}
+
+// TODO SRC 13
+subroutine(src_stage_sub) vec4 src_13(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+{
+    return src_5(vUV, seed, b1, f1, b2, f2, b3, f3);
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    // logic
+    
+    return texture(iTex0, vUV);
+}
+
+// TODO SRC 14
+subroutine(src_stage_sub) vec4 src_14(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+{
+    return src_7(vUV, seed, b1, f1, b2, f2, b3, f3);
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    // logic
+    
+    return texture(iTex0, vUV);
+}
+
+// SRC 15 : TODO
+subroutine(src_stage_sub) vec4 src_15(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+{
+    return src_8(vUV, seed, b1, f1, b2, f2, b3, f3);
+    // start
+
+	vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    // controls
+
+    // logic
+    
+    return texture(iTex0, vUV);
+}
+
+#endif
\ No newline at end of file
diff --git a/default/inc_template.glsl b/default/inc_template.glsl
new file mode 100644
index 0000000..6490e0f
--- /dev/null
+++ b/default/inc_template.glsl
@@ -0,0 +1,4 @@
+#ifndef INC_TEMPLATE
+#define INC_TEMPLATE
+
+#endif
\ No newline at end of file
diff --git a/default/inc_time.glsl b/default/inc_time.glsl
new file mode 100644
index 0000000..725aa00
--- /dev/null
+++ b/default/inc_time.glsl
@@ -0,0 +1,49 @@
+#ifndef PI
+#define PI 3.1415927
+#endif
+
+#include inc_rand.glsl
+
+#ifndef INC_TIME
+#define INC_TIME
+
+uniform float iTime;
+uniform float iTempo;
+uniform float iBeats;
+
+float randTime(float seed){
+    return rand(seed + floor(iBeats / 4));
+}
+
+float divider(float x)
+{
+    if (x < 0.1) return 0;
+    if (x < 0.2) return 0.125;
+    if (x < 0.3) return 0.25;
+    if (x < 0.4) return 0.5;
+    if (x < 0.6) return 1;
+    if (x < 0.8) return 2;
+    return 4;
+}
+
+float modTime(float k, float k2)
+{
+    return mod(divider(k) * iBeats * k2 / 4, 1);
+}
+
+float modTime(float k)
+{
+    return modTime(k, 1.0);
+}
+
+float sinTime(float k)
+{
+    return sin(modTime(k, 0.5) * 2 * PI);
+}
+
+float cosTime(float k)
+{
+    return cos(modTime(k, 0.5) * 2 * PI);
+}
+
+#endif
\ No newline at end of file
diff --git a/default/inc_yuv.glsl b/default/inc_yuv.glsl
new file mode 100644
index 0000000..f6452dd
--- /dev/null
+++ b/default/inc_yuv.glsl
@@ -0,0 +1,28 @@
+#ifndef INC_YUV
+#define INC_YUV
+
+const int YUYV_FOURCC = 1448695129;
+
+const mat3x3 yuv_to_rgb = {{1,1,1},{0,-0.39465,2.03211},{1.13983,-0.5806,0}};
+
+vec4 yuyvTex(sampler2D tex, vec2 vUV, int base_width) {
+    float w = base_width - 1;
+    
+    int x = int(vUV.x * w);
+
+    int xU = x - x % 2;
+    int xV = x - x % 2 + 1;
+
+    vec4 tU = texture(tex, vec2(xU / w, 1 - vUV.y));
+    vec4 tV = texture(tex, vec2(xV / w, 1 - vUV.y));
+
+    vec3 yuv = vec3(
+        x % 2 == 0 ? tU.x : tV.x,
+        tU.y - 0.5,
+        tV.y - 0.5
+    );
+
+    return vec4(yuv_to_rgb * yuv, 1.0);
+}
+
+#endif
\ No newline at end of file
diff --git a/src/config_file.c b/src/config_file.c
index 7823894..db4e2e6 100644
--- a/src/config_file.c
+++ b/src/config_file.c
@@ -70,7 +70,7 @@ void config_file_read(ConfigFile *config, char *path) {
   config->map = hashmap_new(sizeof(ConfigFileItem), 0, 0, 0, item_hash,
                             item_compare, NULL, NULL);
 
-  file = file_read(path);
+  file_read(&file, path);
 
   if (file.error) {
     return;
diff --git a/src/file.c b/src/file.c
index ec34855..36fd0c0 100644
--- a/src/file.c
+++ b/src/file.c
@@ -67,16 +67,32 @@ bool file_update(File *file) {
   return true;
 }
 
-File file_read(char *path) {
-  File file;
+void file_read(File *file, char *path) {
+  strncpy(file->path, path, STR_LEN);
+  file->content = NULL;
+  file->error = false;
+  file->last_write = 0;
 
-  strncpy(file.path, path, STR_LEN);
-  file.content = NULL;
-  file.error = false;
-  file.last_write = 0;
+  file_update(file);
+}
 
-  file_update(&file);
-  return file;
+void file_dump(char *path, char *content) {
+  FILE *file_pointer;
+
+  log_info("Dumping %s...", path);
+
+  // open file
+  file_pointer = fopen(path, "w");
+  if (file_pointer == NULL) {
+    log_warn("Cannot open file '%s'", path);
+    return;
+  }
+
+  // write file
+  fprintf(file_pointer, "%s", content);
+
+  // close file
+  fclose(file_pointer);
 }
 
 void file_write(char *path, StringArray *lines) {
diff --git a/src/file.h b/src/file.h
index 95fe96f..dfb7b22 100644
--- a/src/file.h
+++ b/src/file.h
@@ -3,7 +3,7 @@
 #ifndef FILE_H
 #define FILE_H
 
-File file_read(char *path);
+void file_read(File *file, char *path);
 
 bool file_should_update(File *file);
 
@@ -11,6 +11,8 @@ bool file_update(File *file);
 
 void file_write(char *path, StringArray *lines);
 
+void file_dump(char *path, char *content);
+
 void file_free(File *file);
 
 #endif /* FILE_H */
\ No newline at end of file
diff --git a/src/project.c b/src/project.c
index 53c7546..04eec62 100644
--- a/src/project.c
+++ b/src/project.c
@@ -11,30 +11,29 @@
 #include "string.h"
 
 static bool parse_fragment_shader_file(Project *project, unsigned int i) {
-  File tmp_file, fragment_shader;
+  File tmp_file;
   char file_path[STR_LEN];
   char *include_pos, *include_end;
   char included_file[STR_LEN];
   char *new_content;
 
-  fragment_shader = project->fragment_shaders[i][0];
-
   project->sub_counts.values[i] = 0;
 
-  include_pos = strstr(fragment_shader.content, "#include ");
+  include_pos = strstr(project->fragment_shaders[i][0].content, "\n#include ");
 
   while (include_pos != NULL && project->sub_counts.values[i] < MAX_SUB_FILE) {
-    include_end = strstr(include_pos, "\n");
+    include_end = strstr(include_pos + 1, "\n");
     if (include_end == NULL) {
-      log_error("Invalid '#include' directive in '%s'", fragment_shader.path);
+      log_error("Invalid '#include' directive in '%s'",
+                project->fragment_shaders[i][0].path);
       return false;
     }
 
-    strlcpy(included_file, include_pos + 9, include_end - include_pos - 8);
+    strlcpy(included_file, include_pos + 10, include_end - include_pos - 9);
 
     snprintf(file_path, STR_LEN, "%s/%s", project->path, included_file);
 
-    tmp_file = file_read(file_path);
+    file_read(&tmp_file, file_path);
 
     if (tmp_file.error) {
       return false;
@@ -43,14 +42,17 @@ static bool parse_fragment_shader_file(Project *project, unsigned int i) {
     project->fragment_shaders[i][++project->sub_counts.values[i]] = tmp_file;
 
     new_content = string_replace_at(
-        fragment_shader.content, include_pos - fragment_shader.content,
-        include_end - fragment_shader.content, tmp_file.content);
+        project->fragment_shaders[i][0].content,
+        include_pos + 1 - project->fragment_shaders[i][0].content,
+        include_end - project->fragment_shaders[i][0].content,
+        tmp_file.content);
 
     project->fragment_shaders[i][0].content = new_content;
 
     file_free(&tmp_file);
 
-    include_pos = strstr(fragment_shader.content, "#include ");
+    include_pos =
+        strstr(project->fragment_shaders[i][0].content, "\n#include ");
   }
 
   return true;
@@ -63,7 +65,7 @@ static bool read_fragment_shader_file(Project *project, char *frag_prefix,
   snprintf(file_path, STR_LEN, "%s/%s%d.glsl", project->path, frag_prefix,
            i + 1);
 
-  project->fragment_shaders[i][0] = file_read(file_path);
+  file_read(&project->fragment_shaders[i][0], file_path);
 
   if (project->fragment_shaders[i][0].error) {
     return false;
diff --git a/src/shaders.c b/src/shaders.c
index 1ab2805..01507f6 100644
--- a/src/shaders.c
+++ b/src/shaders.c
@@ -8,6 +8,7 @@
 #include "config.h"
 #include "config_file.h"
 #include "constants.h"
+#include "file.h"
 #include "shaders.h"
 
 #define GLAD_GL_IMPLEMENTATION
@@ -206,6 +207,7 @@ static bool compile_shader(GLuint shader_id, char *name, char *source_code) {
 
   if (status_params == GL_FALSE) {
     log_error("Failed to compile\n%s", log);
+    file_dump("error.glsl", source_code);
   } else {
     log_info("Compilation successful");
   }
@@ -479,7 +481,7 @@ static void write_uniform_multi_3f(GLuint location, unsigned int count,
 
 static void use_program(ShaderProgram *program, int i, bool output,
                         SharedContext *context) {
-  unsigned int j, k, offset;
+  unsigned int j, k, offset, subcount;
   GLuint subroutines[ARRAY_SIZE];
   // use specific shader program
   glUseProgram(program->programs[i]);
@@ -547,14 +549,22 @@ static void use_program(ShaderProgram *program, int i, bool output,
 
   // set subroutines for fragment and update state uniforms
   k = context->state.values[i];
+  subcount = 0;
   for (j = 0; j < program->sub_type_count; j++) {
-    subroutines[j] = program->sub_locations[i * program->sub_type_count *
-                                                program->sub_variant_count +
-                                            j * program->sub_variant_count + k];
+    if (program->sub_locations[i * program->sub_variant_count *
+                                   program->sub_type_count +
+                               j * program->sub_variant_count + k] !=
+        unused_uniform) {
+      subroutines[subcount++] =
+          program->sub_locations[i * program->sub_variant_count *
+                                     program->sub_type_count +
+                                 j * program->sub_variant_count + k];
+    }
   }
 
-  glUniformSubroutinesuiv(GL_FRAGMENT_SHADER, program->sub_type_count,
-                          subroutines);
+  if (subcount > 0) {
+    glUniformSubroutinesuiv(GL_FRAGMENT_SHADER, subcount, subroutines);
+  }
 
   // set GL_TEXTURE(X) to uniform sampler2D texX
   for (j = 0; j < program->tex_count; j++) {
diff --git a/src/string.c b/src/string.c
index 7cf2822..b478117 100644
--- a/src/string.c
+++ b/src/string.c
@@ -60,12 +60,11 @@ char *string_replace_at(char *src, unsigned int from, unsigned int to,
   src_len = strlen(src);
   rpl_len = strlen(rpl);
 
-  dst =
-      malloc(src_len - (to - from) + rpl_len + 1); // +1 for the null-terminator
+  dst = malloc(src_len - (to - from) + rpl_len + 1);
 
   strncpy(dst, src, from);
   strncpy(dst + from, rpl, rpl_len);
-  strncpy(dst + from + rpl_len, src + to, src_len - to);
+  strlcpy(dst + from + rpl_len, src + to, src_len - to + 1);
 
   return dst;
 }
\ No newline at end of file