gistfile1.txt

<?xml version="1.0" encoding="UTF-8"?>

<shader language="GLSL">
   <vertex><![CDATA[

      void main()
      {
         gl_Position    = ftransform();
         gl_TexCoord[0] = gl_MultiTexCoord0;
      }
      ]]></vertex>

   <fragment><![CDATA[

      uniform sampler2D texture;
      uniform vec2 rubyTextureSize;

      void main()
      {
         vec4 sum = vec4(0);
         vec2 texcoord = vec2(gl_TexCoord[0]);
         int j;
         int i;

         vec2 glaredist = vec2(1.024) / rubyTextureSize;

         for(i = -4; i < 4; i++)
         {
            for (j = -3; j < 3; j++)
            {
               sum += texture2D(texture, texcoord + vec2(j, i) * glaredist) * 0.25;
            }
         }

         vec4 tex = texture2D(texture, texcoord);

         if (tex.r < 0.3)
         {
            gl_FragColor = sum * sum * 0.012 + tex;
         }
         else
         {
            if (tex.r < 0.5)
            {
               gl_FragColor = sum * sum * 0.009 + tex;
            }
            else
            {
               gl_FragColor = sum * sum * 0.0075 + tex;
            }
         }
      }
      ]]></fragment>
</shader>