wehub-resource-sync
70 lines
1.6 KiB
HLSL
70 lines
1.6 KiB
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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#include "shared/pbr.hlsl"
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/*{ADDITIONAL_INCLUDES}*/
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cbuffer Params : register(b0)
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{
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float Amount;
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float Variation;
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}
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cbuffer Params : register(b1)
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{
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/*{FLOAT_PARAMS}*/
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}
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cbuffer Params : register(b2)
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{
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uint ParticleCount;
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int EnableBounce;
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}
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RWStructuredBuffer<Particle> Particles : u0;
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StructuredBuffer<PbrVertex> Vertices : t0;
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StructuredBuffer<int3> Indices : t1;
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sampler ClampedSampler : s0;
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//=== Additional Resources ==========================================
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/*{RESOURCES(t6)}*/
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//=== Global functions ==============================================
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/*{GLOBALS}*/
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//=== Field functions ===============================================
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/*{FIELD_FUNCTIONS}*/
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//-------------------------------------------------------------------
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float4 GetField(float4 p)
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{
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float4 f = 1;
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/*{FIELD_CALL}*/
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return f;
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}
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//===================================================================
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[numthreads(64, 1, 1)] void main(uint3 i : SV_DispatchThreadID)
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{
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uint maxParticleCount, _;
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Particles.GetDimensions(maxParticleCount, _);
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int gi = i.x;
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if (gi >= maxParticleCount)
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return;
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if (isnan(Particles[gi].BirthTime))
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return;
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float3 pos = Particles[gi].Position;
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float4 f = GetField(float4(pos, 0));
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float3 variationFactor = hash11u(i.x) * Variation + 1;
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float3 velocity = f.xyz * Amount * f.w * variationFactor;
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if (!isnan(velocity.x) && !isnan(velocity.y) && !isnan(velocity.z))
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Particles[gi].Velocity += velocity;
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}
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