turanszkij
25 lines
648 B
HLSL
25 lines
648 B
HLSL
#include "globals.hlsli"
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#include "ShaderInterop_CloudGenerator.h"
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RWTEXTURE2D(output, unorm float4, 0);
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[numthreads(CLOUDGENERATOR_BLOCKSIZE, CLOUDGENERATOR_BLOCKSIZE, 1)]
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void main(uint3 DTid : SV_DispatchThreadID)
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{
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float2 uv = ((float2)DTid.xy + 0.5f) / xNoiseTexDim;
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float4 result = 0;
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float weight = 1;
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float weight_sum = 0;
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for (uint i = 0; i < xRefinementCount; ++i)
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{
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float2 tc = (uv + xRandomness * sin((i + 1) * float2(0.5f, 0.25f) * PI)) * 1.0f / pow(2, i);
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result += texture_0.SampleLevel(sampler_linear_wrap, tc, 0) * weight;
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weight_sum += weight;
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weight *= 2;
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}
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result /= weight_sum;
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output[DTid.xy] = result;
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}
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