87 lines
No EOL
3.8 KiB
C++
87 lines
No EOL
3.8 KiB
C++
// Copyright 2020 Phyronnaz
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#include "VoxelShaders/VoxelErosionShader.h"
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#include "ShaderParameterUtils.h"
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IMPLEMENT_GLOBAL_SHADER_PARAMETER_STRUCT(FVoxelErosionParameters, "VoxelErosionParameters");
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FVoxelErosionCS::FVoxelErosionCS(const ShaderMetaType::CompiledShaderInitializerType& Initializer)
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: FGlobalShader(Initializer)
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{
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#define PROCESS_SURFACE(Name) Name.Bind(Initializer.ParameterMap, TEXT(#Name), EShaderParameterFlags::SPF_Optional);
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PROCESS_SURFACE(RainMap);
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PROCESS_SURFACE(TerrainHeight);
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PROCESS_SURFACE(TerrainHeight1);
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PROCESS_SURFACE(WaterHeight);
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PROCESS_SURFACE(WaterHeight1);
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PROCESS_SURFACE(WaterHeight2);
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PROCESS_SURFACE(Sediment);
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PROCESS_SURFACE(Sediment1);
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PROCESS_SURFACE(Outflow);
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PROCESS_SURFACE(Velocity);
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#undef PROCESS_SURFACE
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}
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void FVoxelErosionCS::ModifyCompilationEnvironment(const FGlobalShaderPermutationParameters& Parameters, FShaderCompilerEnvironment& OutEnvironment)
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{
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FGlobalShader::ModifyCompilationEnvironment(Parameters, OutEnvironment);
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OutEnvironment.SetDefine(TEXT("NUM_THREADS_CS"), VOXEL_EROSION_NUM_THREADS_CS);
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//OutEnvironment.CompilerFlags.Add(CFLAG_StandardOptimization);
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}
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void FVoxelErosionCS::SetSurfaces(
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FRHICommandList& RHICmdList,
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FUnorderedAccessViewRHIRef RainMapUAV,
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FUnorderedAccessViewRHIRef TerrainHeightUAV,
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FUnorderedAccessViewRHIRef TerrainHeight1UAV,
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FUnorderedAccessViewRHIRef WaterHeightUAV,
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FUnorderedAccessViewRHIRef WaterHeight1UAV,
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FUnorderedAccessViewRHIRef WaterHeight2UAV,
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FUnorderedAccessViewRHIRef SedimentUAV,
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FUnorderedAccessViewRHIRef Sediment1UAV,
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FUnorderedAccessViewRHIRef OutflowUAV,
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FUnorderedAccessViewRHIRef VelocityUAV)
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{
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#define PROCESS_SURFACE(Name) SetUAVParameter(RHICmdList, RHICmdList.GetBoundComputeShader(), Name, Name##UAV);
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PROCESS_SURFACE(RainMap);
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PROCESS_SURFACE(TerrainHeight);
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PROCESS_SURFACE(TerrainHeight1);
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PROCESS_SURFACE(WaterHeight);
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PROCESS_SURFACE(WaterHeight1);
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PROCESS_SURFACE(WaterHeight2);
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PROCESS_SURFACE(Sediment);
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PROCESS_SURFACE(Sediment1);
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PROCESS_SURFACE(Outflow);
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PROCESS_SURFACE(Velocity);
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#undef PROCESS_SURFACE
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}
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void FVoxelErosionCS::SetUniformBuffers(FRHICommandList& RHICmdList, const FVoxelErosionParameters& Parameters)
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{
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const FVoxelErosionParametersRef ParametersBuffer = FVoxelErosionParametersRef::CreateUniformBufferImmediate(Parameters, UniformBuffer_MultiFrame);
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SetUniformBufferParameter(RHICmdList, RHICmdList.GetBoundComputeShader(), GetUniformBufferParameter<FVoxelErosionParameters>(), ParametersBuffer);
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}
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/* Unbinds buffers that will be used elsewhere */
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void FVoxelErosionCS::UnbindBuffers(FRHICommandList& RHICmdList)
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{
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#define PROCESS_SURFACE(Name) RHICmdList.SetUAVParameter(RHICmdList.GetBoundComputeShader(), Name.GetBaseIndex(), FUnorderedAccessViewRHIRef());
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PROCESS_SURFACE(RainMap);
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PROCESS_SURFACE(TerrainHeight);
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PROCESS_SURFACE(TerrainHeight1);
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PROCESS_SURFACE(WaterHeight);
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PROCESS_SURFACE(WaterHeight1);
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PROCESS_SURFACE(WaterHeight2);
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PROCESS_SURFACE(Sediment);
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PROCESS_SURFACE(Sediment1);
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PROCESS_SURFACE(Outflow);
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PROCESS_SURFACE(Velocity);
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#undef PROCESS_SURFACE
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}
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IMPLEMENT_TYPE_LAYOUT(FVoxelErosionCS);
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IMPLEMENT_SHADER_TYPE(, FVoxelErosionWaterIncrementCS , TEXT("/Plugin/Voxel/Private/Erosion.usf"), TEXT("WaterIncrement") , SF_Compute);
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IMPLEMENT_SHADER_TYPE(, FVoxelErosionFlowSimulationCS , TEXT("/Plugin/Voxel/Private/Erosion.usf"), TEXT("FlowSimulation") , SF_Compute);
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IMPLEMENT_SHADER_TYPE(, FVoxelErosionErosionDepositionCS , TEXT("/Plugin/Voxel/Private/Erosion.usf"), TEXT("ErosionDeposition") , SF_Compute);
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IMPLEMENT_SHADER_TYPE(, FVoxelErosionSedimentTransportationCS, TEXT("/Plugin/Voxel/Private/Erosion.usf"), TEXT("SedimentTransportation"), SF_Compute);
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IMPLEMENT_SHADER_TYPE(, FVoxelErosionEvaporationCS , TEXT("/Plugin/Voxel/Private/Erosion.usf"), TEXT("Evaporation") , SF_Compute); |