60 lines
1.7 KiB
Plaintext
60 lines
1.7 KiB
Plaintext
float4 res : register(c0);
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float4 glow : register(c31);
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sampler2D colorSampler : register(s0);
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sampler2D guideSampler : register(s4);
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static float2 fGaussianWeights[] = {
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float2(-3.0f, 0.015625f),
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float2(-2.0f, 0.09375f),
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float2(-1.0f, 0.234375f),
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float2(0.0f, 0.3125f),
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float2(1.0f, 0.234375f),
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float2(2.0f, 0.09375f),
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float2(3.0f, 0.015625f)
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};
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float4 ps_blur(float2 t : TEXCOORD0, uniform float2 vDir) : COLOR0
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{
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float2 vDelta = vDir * res.zw;
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float4 fColor = 0.f;
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for(int i = 0; i < 7; i++)
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fColor += fGaussianWeights[i].y
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* tex2D(colorSampler, t + fGaussianWeights[i].x * vDelta);
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return fColor;
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}
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float4 ps_blur_hor(float2 t : TEXCOORD0) : COLOR0 { return ps_blur(t, float2(1.f, 0.f)); }
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float4 ps_blur_ver(float2 t : TEXCOORD0) : COLOR0 { return ps_blur(t, float2(0.f, 1.f)); }
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float4 ps_blur_bil(float2 t : TEXCOORD0, uniform float2 vDir) : COLOR0
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{
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float2 vDelta = vDir * res.zw;
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float4 fGuide = tex2D(guideSampler, t);
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float4 fColor = 0.f;
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float fWeight = 0.f;
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for(int i = 0; i < 7; i++)
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{
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float2 to = t + vDelta * fGaussianWeights[i].x;
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float4 fSample = tex2D(colorSampler, to);
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float fSampleWeight = (1.f - saturate(4.f * (fGuide.w - fSample.w))) * fGaussianWeights[i].y;
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fColor += fSample * fSampleWeight;
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fWeight += fSampleWeight;
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}
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return lerp(fGuide, fColor / fWeight, fWeight);
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}
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float4 ps_blur_bil_hor(float2 t : TEXCOORD0) : COLOR0 { return ps_blur_bil(t, float2(1.f, 0.f)); }
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float4 ps_blur_bil_ver(float2 t : TEXCOORD0) : COLOR0 { return ps_blur_bil(t, float2(0.f, 1.f)); }
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float4 ps_extract_inv_alpha(float2 t : TEXCOORD0) : COLOR0
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{
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float4 c = tex2D(colorSampler, t);
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c.a = 1.f - c.a;
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c.xyz *= c.a;
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return c * glow;
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}
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