// identity 
float time=0.5;
float sampleDist = 1.0f/512.0f;  // distance one pixel in u/v

sampler2D image : register(s0);


float4 main(
	float4 Pos : POSITION,
	float2 texCoord: TEXCOORD0) : COLOR 
{
	float4 img = tex2D(image, texCoord);

	return img;
	//return lerp(sum,float4(1,1,1,1)-sum,time);	  //-sum
}