diff --git a/shaders/frag0.glsl b/shaders/frag0.glsl
index 6a8717c..f5d158d 100644
--- a/shaders/frag0.glsl
+++ b/shaders/frag0.glsl
@@ -22,7 +22,6 @@ uniform sampler2D tex4;
 uniform sampler2D tex5;
 uniform sampler2D tex6;
 uniform sampler2D tex7;
-uniform sampler2D tex8;
 
 // 3. definitions
 // --------------
diff --git a/shaders/shaders.cfg b/shaders/shaders.cfg
index b032631..7720192 100644
--- a/shaders/shaders.cfg
+++ b/shaders/shaders.cfg
@@ -5,13 +5,6 @@ UNIFORM_RESOLUTION=iResolution
 
 FRAG_COUNT=6
 
-FRAG_OUT_1=2
-FRAG_OUT_2=5
-FRAG_OUT_3=3
-FRAG_OUT_4=6
-FRAG_OUT_5=7
-FRAG_OUT_6=0
-
 SUB_TYPE_COUNT=3
 SUB_1_PREFIX=src_
 SUB_1_COUNT=16
diff --git a/src/config.h b/src/config.h
index 437c3fd..e31e386 100644
--- a/src/config.h
+++ b/src/config.h
@@ -10,7 +10,7 @@
 #endif /* VERSION */
 
 #ifndef TEX_COUNT
-#define TEX_COUNT 9
+#define TEX_COUNT 8
 #endif /* TEXT_COUNT */
 
 #ifndef SUB_COUNT
diff --git a/src/constants.h b/src/constants.h
index 6308e44..09a6036 100644
--- a/src/constants.h
+++ b/src/constants.h
@@ -24,6 +24,7 @@ static char *output_shader_text = "#version 460\n"
                                   "    fragColor = texture(tex0, vUV);\n"
                                   "}";
 
+// TODO monitor should have special shader to use full capacity
 static char *monitor_shader_text =
     "#version 460\n"
     "uniform sampler2D tex0;\n"
@@ -34,7 +35,6 @@ static char *monitor_shader_text =
     "uniform sampler2D tex5;\n"
     "uniform sampler2D tex6;\n"
     "uniform sampler2D tex7;\n"
-    "uniform sampler2D tex8;\n"
     "in vec2 vUV;\n"
     "out vec4 fragColor;\n"
     "float s(vec2 uv, float x0, float y0) {\n"
@@ -50,9 +50,8 @@ static char *monitor_shader_text =
     "    fragColor += s(uv,0,1) * texture(tex4, uv);\n"
     "    fragColor += s(uv,1,1) * texture(tex5, uv);\n"
     "    fragColor += s(uv,2,1) * texture(tex6, uv);\n"
-    "    fragColor += s(uv,0,0) * texture(tex7, uv);\n"
-    "    fragColor += s(uv,1,0) * texture(tex8, uv);\n"
-    "    fragColor += s(uv,2,0) * texture(tex0, uv);\n"
+    "    fragColor += s(uv,0.5,0) * texture(tex7, uv-vec2(0.5,0));\n"
+    "    fragColor += s(uv,1.5,0) * texture(tex0, uv-vec2(0.5,0));\n"
     "}";
 
 static const Vertex vertices[6] = {{{0.0f, 0.0f}}, {{0.0f, 1.0f}},
diff --git a/src/shaders.c b/src/shaders.c
index 6b38210..778f147 100644
--- a/src/shaders.c
+++ b/src/shaders.c
@@ -1,6 +1,7 @@
 #include <glad/gl.h>
 #include <linmath.h>
 #include <stddef.h>
+#include <stdio.h>
 #include <stdlib.h>
 
 #include "config.h"
@@ -147,7 +148,7 @@ static void init_single_program(ShaderProgram *program, unsigned int i,
   glAttachShader(program->programs[i], program->vertex_shader);
 
   if (output) {
-    glAttachShader(program->programs[i], program->monitor_shader); // TODO tmp
+    glAttachShader(program->programs[i], program->monitor_shader);
   } else {
     glAttachShader(program->programs[i], program->fragment_shaders[i]);
   }
@@ -225,9 +226,16 @@ static void init_programs(ShaderProgram *program, ConfigFile shader_config) {
   }
 }
 
+static void init_drawbuffers(ShaderProgram *program) {
+  unsigned int i;
+
+  for (i = 0; i < TEX_COUNT; i++) {
+    program->draw_buffers[i] = GL_COLOR_ATTACHMENT0 + i;
+  }
+}
+
 ShaderProgram shaders_init(File *fragment_shaders, ConfigFile shader_config,
                            Context context) {
-  unsigned int i;
   ShaderProgram program;
 
   program.error = false;
@@ -249,10 +257,7 @@ ShaderProgram shaders_init(File *fragment_shaders, ConfigFile shader_config,
 
   init_programs(&program, shader_config);
 
-  // TODO each for each frag
-  for (i = 0; i < TEX_COUNT; i++) {
-    program.draw_buffers[i] = GL_COLOR_ATTACHMENT0 + i;
-  }
+  init_drawbuffers(&program);
 
   return program;
 }
@@ -327,7 +332,7 @@ void shaders_apply(ShaderProgram program, Context context) {
       glUniform1i(program.textures_locations[j][i], j);
     }
 
-    glDrawBuffers(TEX_COUNT - 1, program.draw_buffers);
+    glDrawBuffers(TEX_COUNT, program.draw_buffers);
 
     // draw output
     glDrawArrays(GL_TRIANGLES, 0, 6);