tooll3--t3
wehub-resource-sync
74 行
1.6 KiB
HLSL
74 行
1.6 KiB
HLSL
#include "shared/point.hlsl"
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#include "shared/quat-functions.hlsl"
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cbuffer Params : register(b0)
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{
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float P;
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float Q;
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float __padding1;
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float __padding2;
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float3 Center;
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float W;
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float3 OrientationAxis;
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float OrientationAngle;
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float AMag;
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float AAng;
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float BMag;
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float BAng;
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float R;
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float Scale;
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float Offset;
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float Bias;
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float Bias2;
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float CutOff;
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float CutOff2;
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}
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RWStructuredBuffer<LegacyPoint> ResultPoints : u0; // output
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static const float ToRad = 3.141578 / 180;
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[numthreads(256, 1, 1)] void main(uint3 Di
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: SV_DispatchThreadID)
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{
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uint count, stride;
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ResultPoints.GetDimensions(count, stride);
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int index = Di.x;
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int p = (int)(P + 0.5);
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// int q = (int)(Q + 0.5);
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int steps = (count / p) - 1;
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int _j = index % steps;
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int _i = index / steps;
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// int _j = index / p;
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// int _i = index % p;
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float i = _i;
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float j = _j - Offset;
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float scale = Scale;
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float ang = AAng * i + BAng * j;
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float mag = max(0, pow(pow(AMag, i) * pow(BMag, j), Bias2) * scale + CutOff);
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float x = cos(ang) * mag;
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float y = sin(ang) * mag;
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float radius = mag * R * 100;
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float3 pos = float3(x, y, 0);
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pos += Center;
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ResultPoints[index].Position = pos;
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ResultPoints[index].W = pow(radius * W + CutOff2, Bias);
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float4 rot = qFromAngleAxis(OrientationAngle * PI / 180, normalize(OrientationAxis));
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rot = qMul(rot, qFromAngleAxis(ang, float3(0, 0, 1)));
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ResultPoints[index].Rotation = rot;
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ResultPoints[index].Color = 1;
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ResultPoints[index].Selected = 1;
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}
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