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Add **Sample Global SDF** node to particles

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This commit is contained in:
Wojciech Figat
2022-03-25 11:41:17 +01:00
parent f8670a497e
commit 4a18185e81
5 changed files with 18 additions and 3 deletions
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2
Source/Editor/Surface/Archetypes/Textures.cs
View File

@@ -363,7 +363,7 @@ namespace FlaxEditor.Surface.Archetypes
TypeID = 14,
Title = "Sample Global SDF",
Description = "Samples the Global SDF to get the distance to the closest surface (in world-space). Requires models SDF to be generated and checking `Enable Global SDF` in Graphics Settings.",
Flags = NodeFlags.MaterialGraph,
Flags = NodeFlags.MaterialGraph | NodeFlags.ParticleEmitterGraph,
Size = new Vector2(200, 20),
Elements = new[]
{

7
Source/Engine/Particles/Graph/CPU/ParticleEmitterGraph.CPU.Particles.cpp
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@@ -124,6 +124,13 @@ void ParticleEmitterGraphCPUExecutor::ProcessGroupTextures(Box* box, Node* node,
value = Value::Zero;
break;
}
// Sample Global SDF
case 14:
{
// Not supported
value = Value::Zero;
break;
}
default:
break;
}

9
Source/Engine/Particles/Graph/GPU/ParticleEmitterGraph.GPU.Textures.cpp
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@@ -303,6 +303,15 @@ void ParticleEmitterGPUGenerator::ProcessGroupTextures(Box* box, Node* node, Val
loadTexture(node, box, copy, value);
break;
}
// Sample Global SDF
case 14:
{
auto param = findOrAddGlobalSDF();
Value worldPosition = tryGetValue(node->GetBox(1), Value(VariantType::Vector3, TEXT("input.WorldPosition.xyz"))).Cast(VariantType::Vector3);
value = writeLocal(VariantType::Float, String::Format(TEXT("SampleGlobalSDF({0}, {0}_Tex, {1})"), param.ShaderName, worldPosition.Value), node);
_includes.Add(TEXT("./Flax/GlobalSignDistanceField.hlsl"));
break;
}
default:
break;
}

2
Source/Engine/Renderer/GlobalSignDistanceFieldPass.cpp
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@@ -216,7 +216,7 @@ void GlobalSignDistanceFieldPass::Dispose()
bool GlobalSignDistanceFieldPass::Get(const RenderBuffers* buffers, BindingData& result)
{
auto* sdfData = buffers ? buffers->FindCustomBuffer<GlobalSignDistanceFieldCustomBuffer>(TEXT("GlobalSignDistanceField")) : nullptr;
if (sdfData && sdfData->LastFrameUsed == Engine::FrameCount)
if (sdfData && sdfData->LastFrameUsed + 1 >= Engine::FrameCount) // Allow to use SDF from the previous frame (eg. particles in Editor using the Editor viewport in Game viewport - Game render task runs first)
{
result = sdfData->Result;
return false;

1
Source/Engine/Tools/MaterialGenerator/MaterialGenerator.Textures.cpp
View File

@@ -427,7 +427,6 @@ void MaterialGenerator::ProcessGroupTextures(Box* box, Node* node, Value& value)
Value worldPosition = tryGetValue(node->GetBox(1), Value(VariantType::Vector3, TEXT("input.WorldPosition.xyz"))).Cast(VariantType::Vector3);
value = writeLocal(VariantType::Float, String::Format(TEXT("SampleGlobalSDF({0}, {0}_Tex, {1})"), param.ShaderName, worldPosition.Value), node);
_includes.Add(TEXT("./Flax/GlobalSignDistanceField.hlsl"));
//float SampleGlobalSDF(const GlobalSDFData data, Texture3D<float> tex[4], float3 worldPosition, uint minCascade = 0)
break;
}
default: