// quantize into steps 
float time=0;
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);
	
	//float quant=floor(20*time);
	float quant=5;
	
  	img  = floor(img*quant+0.9)/quant;
  	
  	return img;

}