26 lines
622 B
HLSL
26 lines
622 B
HLSL
#include "shared/point.hlsl"
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#include "shared/quat-functions.hlsl"
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cbuffer Params2 : register(b0)
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{
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int CycleIndex;
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int TrailLength;
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int PointCount;
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int BufferLength;
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int WriteOrderTo;
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int WriteLineSeperators;
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}
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StructuredBuffer<Point> SourcePoints : t0; // input
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RWStructuredBuffer<Point> TrailPoints : u0; // output
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[numthreads(64, 1, 1)] void main(uint3 i : SV_DispatchThreadID)
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{
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int sourceIndex = i.x;
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if (i.x >= PointCount)
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return;
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int targetIndex = (CycleIndex + sourceIndex * TrailLength) % BufferLength;
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TrailPoints[targetIndex] = SourcePoints[sourceIndex];
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}
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