#ifdef GL_ES
precision mediump int;
precision mediump float;
#endif

#define USE_OGRE_FROM_FUTURE
#include <OgreUnifiedShader.h>

SAMPLER2D(inRTT, 0);

OGRE_UNIFORMS(
uniform vec4 sampleOffsets[15];
uniform vec4 sampleWeights[15];
)

MAIN_PARAMETERS
IN(vec2 oUv0, TEXCOORD0)
MAIN_DECLARATION
{
  vec4 accum = vec4(0.0, 0.0, 0.0, 1.0);
  vec2 sampleUV;

  for(int i = 0; i < 15; i++)
  {
    // Sample from adjacent points, 7 each side and central
    sampleUV = oUv0 + sampleOffsets[i].xy;
    accum += sampleWeights[i] * texture2D(inRTT, sampleUV);
  }

  gl_FragColor = accum;	
}