X-Git-Url: https://gitweb.ps.run/subsurface_scattering/blobdiff_plain/a0fdc6d882a1755d0b0607ba3d9bb55e7f8ac006..c99ecda7bed596922125f6b1ef1ef2ae8f27703e:/shaders/fbo_frag.glsl?ds=sidebyside

diff --git a/shaders/fbo_frag.glsl b/shaders/fbo_frag.glsl
index 1102992..f92483e 100644
--- a/shaders/fbo_frag.glsl
+++ b/shaders/fbo_frag.glsl
@@ -11,45 +11,17 @@ uniform int renderState;
 uniform vec2 samplePositions[13];
 uniform vec3 sampleWeights[13];
 
-vec4 blur(sampler2D tex, vec2 uv, vec2 res) {
-  float Pi = 6.28318530718; // Pi*2
-    
-  // GAUSSIAN BLUR SETTINGS {{{
-  float Directions = 16.0; // BLUR DIRECTIONS (Default 16.0 - More is better but slower)
-  float Quality = 4.0; // BLUR QUALITY (Default 4.0 - More is better but slower)
-  float Size = 8.0; // BLUR SIZE (Radius)
-  // GAUSSIAN BLUR SETTINGS }}}
-  
-  vec2 Radius = Size/res;
-  
-  // Pixel colour
-  vec4 Color = texture(tex, uv);
-  
-  // Blur calculations
-  for( float d=0.0; d<Pi; d+=Pi/Directions) {
-    for(float i=1.0/Quality; i<=1.0; i+=1.0/Quality) {
-      Color += texture( tex, uv+vec2(cos(d),sin(d))*Radius*i);		
-    }
-  }
-  
-  // Output to screen
-  Color /= Quality * Directions - 15.0;
-  return Color;
-}
-
 void main()
 {
     if (renderState == 0) {
-        FragColor = blur(shadowmapTexture, TexCoords, vec2(screenWidth, screenHeight));
-    }
-    else if (renderState == 1) {
         FragColor = texture(shadowmapTexture, TexCoords);
     }
-    // stencil buffer
-    else if (renderState == 2) {
+    else if (renderState == 1) {
         FragColor = texture(irradianceTexture, TexCoords);
     }
-    else if (renderState == 3) {
+    else if (renderState == 2) {
+        // sample calculated irradiance
+        // using Gaussian kernel to approximate light spread
         vec4 result = vec4(0, 0, 0, 1);
         for (int i = 0; i < 13; i++) {
             vec2 sampleCoords = TexCoords + samplePositions[i] * vec2(1.0/screenWidth, 1.0/screenHeight);