wehub-resource-sync
40 lines
902 B
HLSL
40 lines
902 B
HLSL
#include "shared/hash-functions.hlsl"
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#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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float3 Direction;
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float Amount;
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float RandomAmount;
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float Mode;
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}
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RWStructuredBuffer<LegacyPoint> ResultPoints : u0;
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[numthreads(64,1,1)]
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void main(uint3 i : SV_DispatchThreadID)
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{
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float3 offset = Direction * Amount * (1 + hash11(i.x) * RandomAmount);
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if(Mode < 0.5)
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{
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ResultPoints[i.x].Position += offset;
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return;
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}
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float4 rot = ResultPoints[i.x].Rotation;
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float4 normalizedRot;
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float v = q_separate_v(rot, normalizedRot);
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float3 forward = qRotateVec3(float3(0,0,1), normalizedRot) * v;
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forward += offset;
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float newV = length(forward);
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float4 newRotation = qLookAt(normalize(forward), float3(0,0,1));
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ResultPoints[i.x].Rotation = q_encode_v(newRotation, newV);
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} |