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forge-steel/default/inc_src.glsl
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2025-11-09 00:00:44 +01:00

385 lines
10 KiB
GLSL

#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 : Calibration
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);
// controls
float circle = magic(f1, b1, seed + 10);
float x_shift = magic(f2, b2, seed + 20);
float grid_size = 0.1 + magic(f3, b3, seed + 30) * 0.9;
bool show_grid = magic_trigger(b3, seed + 30);
// logic
float f = 0;
f += step(length(uv1), circle * 0.5);
float txt = 0;
float txt_rect = rect(uv1 * 10, vec2(0), vec2(2, 1));
txt += write_int(uv1 * 10, vec2(-1.33,-0.5), int(mod(iBeats, 4) + 1), 1);
txt += char_at(uv1 * 10, vec2(-0.33, -0.5), 0x2E);
txt += write_int(uv1 * 10, vec2(0.66,-0.5), int((mod(iBeats, 4) + 1) * 10), 1);
float grid = 0;
grid = step(mod(uv1.x + grid_size * 0.05, grid_size), grid_size * 0.1) + step(mod(uv1.y + grid_size * 0.05, grid_size), grid_size * 0.1);
grid = mix(grid, 0, show_grid ? min(1, f + txt_rect) : 1);
vec3 c = vec3(step(mod(uv0.x + x_shift, 0.5), 0.25), step(mod(uv0.x + 0.125 + x_shift, 0.5), 0.25), step(mod(uv0.x + x_shift, 1.0), 0.5));
c = mix(c, 1 - c, f);
c = mix(c, vec3(txt), txt_rect);
c = mix(c, vec3(grid) * 0.5, grid);
return vec4(c, 1);
}
#endif