62 lines
1.2 KiB
Plaintext
62 lines
1.2 KiB
Plaintext
// Parameters
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/// OBS
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uniform float4x4 ViewProj;
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/// Blur
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uniform texture2d u_image;
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uniform float2 u_imageSize;
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uniform float2 u_imageTexel;
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uniform int u_radius;
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uniform int u_diameter;
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uniform float2 u_texelDelta;
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// Data
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sampler_state pointSampler {
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Filter = Point;
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AddressU = Clamp;
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AddressV = Clamp;
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MinLOD = 0;
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MaxLOD = 0;
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};
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struct VertDataIn {
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float4 pos : POSITION;
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float2 uv : TEXCOORD0;
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};
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struct VertDataOut {
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float4 pos : POSITION;
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float2 uv : TEXCOORD0;
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};
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VertDataOut VSDefault(VertDataIn v_in)
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{
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VertDataOut vert_out;
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vert_out.pos = mul(float4(v_in.pos.xyz, 1.0), ViewProj);
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vert_out.uv = v_in.uv;
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return vert_out;
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}
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// Box Blur
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float4 BlurFunc(float2 uv, float4 rgba) {
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float4 final = rgba;
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for (int k = 1; k <= u_radius; k++) {
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final += u_image.SampleLevel(pointSampler, uv + (u_texelDelta * k), 0);
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final += u_image.SampleLevel(pointSampler, uv - (u_texelDelta * k), 0);
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}
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return final / u_diameter;
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}
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float4 PSBox(VertDataOut v_in) : TARGET {
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float4 rgba = u_image.SampleLevel(pointSampler, v_in.uv, 0);
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return BlurFunc(v_in.uv, rgba);
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}
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technique Draw
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{
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pass
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{
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vertex_shader = VSDefault(v_in);
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pixel_shader = PSBox(v_in);
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}
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}
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