sharpen.psh

vc＋＋环境下的暴风影音到源代码

sampler s0 : register(s0); 
float4 p0 : register(c0); 
float4 p1 : register(c1); 
 
#define effect_width (1.6) 
#define val0 (2.0) 
#define val1 (-0.125) 

#define width (p0[0]) 
#define height (p0[1]) 
 
float4 main(float2 tex : TEXCOORD0) : COLOR 
{ 
	float dx = effect_width/width; 
	float dy = effect_width/height; 
 
	float4 c1 = tex2D(s0, tex + float2(-dx,-dy)) * val1; 
	float4 c2 = tex2D(s0, tex + float2(0,-dy)) * val1; 
	float4 c3 = tex2D(s0, tex + float2(-dx,0)) * val1; 
	float4 c4 = tex2D(s0, tex + float2(dx,0)) * val1; 
	float4 c5 = tex2D(s0, tex + float2(0,dy)) * val1; 
	float4 c6 = tex2D(s0, tex + float2(dx,dy)) * val1; 
	float4 c7 = tex2D(s0, tex + float2(-dx,+dy)) * val1; 
	float4 c8 = tex2D(s0, tex + float2(+dx,-dy)) * val1; 
	float4 c9 = tex2D(s0, tex) * val0; 
	
	float4 c0 = (c1 + c2 + c3 + c4 + c5 + c6 + c7 + c8 +c9); 
	
	return c0; 
}