40 lines
657 B
Plaintext
40 lines
657 B
Plaintext
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#pragma kernel FuncationKernel
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RWStructuredBuffer<float3> _Positions;
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uint _Resolution;
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float _Step;
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float _Time;
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float2 GetUV(uint3 id)
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{
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return (id.xy + 0.5) * _Step - 1.0;
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}
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void SetPositions(uint3 id, float3 positions)
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{
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if (id.x < _Resolution && id.y < _Resolution)
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{
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_Positions[id.x + id.y * _Resolution] = positions;
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}
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}
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#define PI 3.14159265358979323846
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float3 Wave(float u, float v, float t)
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{
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float3 p;
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p.x = u;
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p.y = sin(PI * (u + v + t));
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p.z = v;
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return p;
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}
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[numthreads(8, 8, 1)]
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void FuncationKernel(uint3 id : SV_DISPATCHTHREADID)
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{
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float2 uv = GetUV(id);
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SetPositions(id, Wave(uv.x, uv.y, _Time));
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}
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