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Add new **Noise** library for C++/C#/VisualScript/HLSL utilities

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This commit is contained in:
Wojtek Figat
2022-07-31 22:20:38 +02:00
parent 1fdc43699c
commit 2104dbc682
10 changed files with 786 additions and 131 deletions
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3
Source/Engine/Particles/Graph/GPU/ParticleEmitterGraph.GPU.ParticleModules.cpp
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@@ -207,6 +207,7 @@ void ParticleEmitterGPUGenerator::ProcessModule(Node* node)
auto roughness = tryGetValue(node->GetBox(3), 5, Value::Zero).AsFloat();
auto intensity = tryGetValue(node->GetBox(4), 6, Value::Zero).AsFloat();
auto octavesCount = tryGetValue(node->GetBox(5), 7, Value::Zero).AsInt();
_includes.Add(TEXT("./Flax/Noise.hlsl"));
// TODO: build fieldTransformMatrix and invFieldTransformMatrix on CPU and pass in constant buffer - no need to support field transform per particle
_writer.Write(
TEXT(
@@ -218,7 +219,7 @@ void ParticleEmitterGPUGenerator::ProcessModule(Node* node)
" fieldTransformMatrix = mul(fieldTransformMatrix, scaleMatrix);\n"
" float4x4 invFieldTransformMatrix = Inverse(fieldTransformMatrix);\n"
" float3 vectorFieldUVW = mul(invFieldTransformMatrix, float4({0}, 1.0f)).xyz;\n"
" float3 force = Noise3D(vectorFieldUVW + 0.5f, {8}, {6});\n"
" float3 force = CustomNoise3D(vectorFieldUVW + 0.5f, {8}, {6});\n"
" force = mul(fieldTransformMatrix, float4(force, 0.0f)).xyz * {7};\n"
" {1} += force * (DeltaTime / max({2}, PARTICLE_THRESHOLD));\n"
" }}\n"