50 lines
1.3 KiB
HLSL
50 lines
1.3 KiB
HLSL
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#define RADIUS 7
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#define KERNEL_SIZE (RADIUS * 2 + 1)
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//-----------------------------------------------------------------------------
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// Globals.
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//-----------------------------------------------------------------------------
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float weights[KERNEL_SIZE];
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float2 offsets[KERNEL_SIZE];
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//-----------------------------------------------------------------------------
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// Textures.
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//-----------------------------------------------------------------------------
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texture colorMapTexture;
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sampler2D colorMap = sampler_state
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{
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Texture = <colorMapTexture>;
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MipFilter = Linear;
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MinFilter = Linear;
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MagFilter = Linear;
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};
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//-----------------------------------------------------------------------------
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// Pixel Shaders.
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//-----------------------------------------------------------------------------
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float4 PS_GaussianBlur(float2 texCoord : TEXCOORD) : COLOR0
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{
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float4 color = float4(0.0f, 0.0f, 0.0f, 0.0f);
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for (int i = 0; i < KERNEL_SIZE; ++i)
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color += tex2D(colorMap, texCoord + offsets[i]) * weights[i];
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return color;
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}
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//-----------------------------------------------------------------------------
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// Techniques.
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//-----------------------------------------------------------------------------
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technique GaussianBlur
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{
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pass
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{
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PixelShader = compile ps_2_0 PS_GaussianBlur();
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}
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}
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