​

uniform float time;

uniform float texSize;

uniform sampler2D colorTexture;

uniform sampler2D depth;

​

uniform float mouseX;

uniform float mouseY;

​

varying vec2 vTexCoord;

varying vec3 vNormal;

varying float vCull;

​

​

void main(){

​

  vec3 normal = texture2D(colorTexture,vTexCoord).xyz * 2.0 - 1.0;

  vec3 color = max(normal,0.0);

  vec3 cmy;

  cmy.r = 1.0 - max(color.r-color.g-color.b, 0.0);

  cmy.g = 1.0 - max(color.g-color.r-color.b, 0.0);

  cmy.b = 1.0 - max(color.b-color.r-color.g, 0.0);

  vec2 absCoord = vTexCoord * texSize;

  float alphaHelper = 0.0;

  for ( float i = -3.0; i < 4.0; i+=2.0 )

    {

      float depthDist = length(texture2D(depth, vTexCoord).xyz -

            texture2D(depth, vec2(absCoord.x + max(i,0.0) - 2.0 * sign(max(i,0.0)),

                                  absCoord.y + max(i,0.0) - 2.0 * sign(max(i,0.0)))

                      /texSize ).xyz);

      // float normalDist = length(normal -

      //       (texture2D(colorTexture, vec2(absCoord.x + max(i,0.0) - 2.0 * sign(max(i,0.0)),

      //                                     absCoord.y + max(i,0.0) - 2.0 * sign(max(i,0.0)))

      //                 /texSize ).xyz * 2.0 - 1.0));

      float normalDist = dot(normal,

            (texture2D(colorTexture, vec2(absCoord.x + max(i,0.0) - 2.0 * sign(max(i,0.0)),

                                          absCoord.y + max(i,0.0) - 2.0 * sign(max(i,0.0)))

                      /texSize ).xyz * 2.0 - 1.0));

      if(depthDist > 0.01 || normalDist < cos(1.5))

        {

        cmy = vec3(0.0);

        alphaHelper = 1.0;

      }

    }

​

  gl_FragColor = vec4(cmy * (texture2D(colorTexture,vTexCoord).xyz + texture2D(colorTexture,vTexCoord).a), texture2D(colorTexture,vTexCoord).a);

}