topical media & game development
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Web3D/VR

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shader(s) -- gray

 

  // identity 
  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);
  
  	// convert to gray 
  	float4 sum = dot(img, float4(0.30f, 0.59f, 0.11f, 0.0f));
  	
  	sum.a=img.a; // keep alpha
  	return lerp(img,sum,time);	 
  }
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

(C) Æliens 20/08/2009

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