重构温度计算：使用正确的RDG API替代SkipTracking

重构内容：
- 移除SkipTracking标志，使用FRDGPooledBuffer包装外部RHI缓冲区
- 使用RegisterExternalBuffer正确注册外部缓冲区到RDG系统
- 简化lambda捕获列表，移除不需要的SRV/UAV引用
- 添加详细的日志输出以便调试

技术改进：
- RDG系统现在能正确追踪资源依赖和状态转换
- 自动处理内存屏障和资源同步
- 符合UE5最佳实践

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Source/BladeSmith/DynamicIronBlock.cpp

@@ -856,6 +856,8 @@ void ADynamicIronBlock::DispatchTemperatureCompute(float DeltaTime)
 {
 	if (!TemperatureBufferA.IsValid() || !TemperatureBufferB.IsValid())
 	{
+		UE_LOG(LogTemp, Error, TEXT("DynamicIronBlock: Temperature buffers not valid! A=%d B=%d"),
+			TemperatureBufferA.IsValid(), TemperatureBufferB.IsValid());
 		return;
 	}
 
@@ -867,30 +869,22 @@ void ADynamicIronBlock::DispatchTemperatureCompute(float DeltaTime)
 	float ForgeMin = ForgeTemperatureMin;
 	float ForgeMax = ForgeTemperatureMax;
 
-	// Ping-Pong缓冲区引用
+	UE_LOG(LogTemp, Log, TEXT("DynamicIronBlock: Dispatching temperature compute - Resolution=(%d,%d,%d), DeltaTime=%.4f"),
+		Resolution.X, Resolution.Y, Resolution.Z, DeltaTime);
+
+	// Ping-Pong缓冲区引用（捕获到lambda传递给RDG）
 	FBufferRHIRef InputBuffer = bUseBufferA ? TemperatureBufferA : TemperatureBufferB;
 	FBufferRHIRef OutputBuffer = bUseBufferA ? TemperatureBufferB : TemperatureBufferA;
 	FBufferRHIRef FlagsBuffer = SurfaceVoxelFlagsBuffer;
 	FBufferRHIRef PlasticityBuf = PlasticityBuffer;
 
-	// 创建SRV/UAV（在游戏线程创建，捕获到lambda）
-	FShaderResourceViewRHIRef InputSRV = TemperatureSRV_A;
-	FShaderResourceViewRHIRef InputSRV_B = TemperatureSRV_B;
-	FShaderResourceViewRHIRef FlagsSRV = SurfaceVoxelSRV;
-	FUnorderedAccessViewRHIRef OutputUAV_A = TemperatureUAV_A;
-	FUnorderedAccessViewRHIRef OutputUAV_B = TemperatureUAV_B;
-	FUnorderedAccessViewRHIRef PlasticityUAV_Ref = PlasticityUAV;
-
-	bool bReadFromA = bUseBufferA;
-
 	// 切换缓冲区（下次Tick使用新的缓冲区）
 	bUseBufferA = !bUseBufferA;
 
-	// 调度GPU计算（直接使用RHI，不用RDG）
+	// 调度GPU计算(使用RDG正确的资源管理)
 	ENQUEUE_RENDER_COMMAND(DispatchTemperatureCS)(
 		[Resolution, Conductivity, Cooling, Ambient, ForgeMin, ForgeMax, DeltaTime,
-		 InputBuffer, OutputBuffer, FlagsBuffer, PlasticityBuf,
+		 InputBuffer, OutputBuffer, FlagsBuffer, PlasticityBuf]
-		 InputSRV, InputSRV_B, FlagsSRV, OutputUAV_A, OutputUAV_B, PlasticityUAV_Ref, bReadFromA]
 		(FRHICommandListImmediate& RHICmdList)
 		{
 			// 检查ShaderMap是否有效
@@ -909,21 +903,30 @@ void ADynamicIronBlock::DispatchTemperatureCompute(float DeltaTime)
 				return;
 			}
 
-			// 使用RDG（简化版本 - 创建临时缓冲区）
+			UE_LOG(LogTemp, Log, TEXT("DynamicIronBlock [RenderThread]: Shader valid, creating RDG..."));
+
+			// 使用RDG
 			FRDGBuilder GraphBuilder(RHICmdList, RDG_EVENT_NAME("TemperatureConduction"));
 
-			// 创建RDG缓冲区描述
+			// 将外部RHI缓冲区正确注册到RDG系统
-			FRDGBufferDesc TempBufferDesc = FRDGBufferDesc::CreateBufferDesc(sizeof(float), InputBuffer->GetSize() / sizeof(float));
+			// 创建缓冲区描述符
-			FRDGBufferDesc FlagsBufferDesc = FRDGBufferDesc::CreateBufferDesc(sizeof(uint32), FlagsBuffer->GetSize() / sizeof(uint32));
+			const uint32 NumElements = InputBuffer->GetSize() / sizeof(float);
+			FRDGBufferDesc TempBufferDesc = FRDGBufferDesc::CreateBufferDesc(sizeof(float), NumElements);
+			FRDGBufferDesc FlagsBufferDesc = FRDGBufferDesc::CreateBufferDesc(sizeof(uint32), NumElements);
 
-			// 创建RDG缓冲区
+			// 创建FRDGPooledBuffer并注册
-			FRDGBufferRef InputTempRDG = GraphBuilder.CreateBuffer(TempBufferDesc, TEXT("InputTemperatureBuffer"));
+			TRefCountPtr<FRDGPooledBuffer> InputPooledBuffer = new FRDGPooledBuffer(RHICmdList, InputBuffer, TempBufferDesc, NumElements, TEXT("InputTemperatureBuffer"));
-			FRDGBufferRef OutputTempRDG = GraphBuilder.CreateBuffer(TempBufferDesc, TEXT("OutputTemperatureBuffer"));
+			TRefCountPtr<FRDGPooledBuffer> OutputPooledBuffer = new FRDGPooledBuffer(RHICmdList, OutputBuffer, TempBufferDesc, NumElements, TEXT("OutputTemperatureBuffer"));
-			FRDGBufferRef FlagsRDG = GraphBuilder.CreateBuffer(FlagsBufferDesc, TEXT("SurfaceVoxelFlagsBuffer"));
+			TRefCountPtr<FRDGPooledBuffer> FlagsPooledBuffer = new FRDGPooledBuffer(RHICmdList, FlagsBuffer, FlagsBufferDesc, NumElements, TEXT("SurfaceVoxelFlagsBuffer"));
-			FRDGBufferRef PlasticityRDG = GraphBuilder.CreateBuffer(TempBufferDesc, TEXT("PlasticityBuffer"));
+			TRefCountPtr<FRDGPooledBuffer> PlasticityPooledBuffer = new FRDGPooledBuffer(RHICmdList, PlasticityBuf, TempBufferDesc, NumElements, TEXT("PlasticityBuffer"));
 
-			// TODO: 添加数据复制Pass（从RHI到RDG）
+			FRDGBufferRef InputTempRDG = GraphBuilder.RegisterExternalBuffer(InputPooledBuffer);
-			// 暂时跳过，shader会处理未初始化数据
+			FRDGBufferRef OutputTempRDG = GraphBuilder.RegisterExternalBuffer(OutputPooledBuffer);
+			FRDGBufferRef FlagsRDG = GraphBuilder.RegisterExternalBuffer(FlagsPooledBuffer);
+			FRDGBufferRef PlasticityRDG = GraphBuilder.RegisterExternalBuffer(PlasticityPooledBuffer);
+
+
+			UE_LOG(LogTemp, Log, TEXT("DynamicIronBlock [RenderThread]: External RHI buffers registered to RDG, setting shader parameters..."));
 
 			// 设置Shader参数
 			FTemperatureComputeShader::FParameters* PassParameters = GraphBuilder.AllocParameters<FTemperatureComputeShader::FParameters>();
@@ -935,10 +938,13 @@ void ADynamicIronBlock::DispatchTemperatureCompute(float DeltaTime)
 			PassParameters->ForgeTemperatureMax = ForgeMax;
 			PassParameters->DeltaTime = DeltaTime;
 
-			PassParameters->InputTemperatureBuffer = GraphBuilder.CreateSRV(InputTempRDG, PF_R32_FLOAT);
+			// 创建SRV和UAV（使用正确注册的RDG资源）
-			PassParameters->SurfaceVoxelFlagsBuffer = GraphBuilder.CreateSRV(FlagsRDG, PF_R32_UINT);
+			PassParameters->InputTemperatureBuffer = GraphBuilder.CreateSRV(FRDGBufferSRVDesc(InputTempRDG, PF_R32_FLOAT));
-			PassParameters->OutputTemperatureBuffer = GraphBuilder.CreateUAV(OutputTempRDG, PF_R32_FLOAT);
+			PassParameters->SurfaceVoxelFlagsBuffer = GraphBuilder.CreateSRV(FRDGBufferSRVDesc(FlagsRDG, PF_R32_UINT));
-			PassParameters->OutputPlasticityBuffer = GraphBuilder.CreateUAV(PlasticityRDG, PF_R32_FLOAT);
+			PassParameters->OutputTemperatureBuffer = GraphBuilder.CreateUAV(FRDGBufferUAVDesc(OutputTempRDG, PF_R32_FLOAT));
+			PassParameters->OutputPlasticityBuffer = GraphBuilder.CreateUAV(FRDGBufferUAVDesc(PlasticityRDG, PF_R32_FLOAT));
+
+			UE_LOG(LogTemp, Log, TEXT("DynamicIronBlock [RenderThread]: Shader parameters set, calculating group count..."));
 
 			// 计算线程组数量
 			FIntVector GroupSize = FTemperatureComputeShader::GetGroupSize();
@@ -948,6 +954,9 @@ void ADynamicIronBlock::DispatchTemperatureCompute(float DeltaTime)
 				FMath::DivideAndRoundUp(Resolution.Z, GroupSize.Z)
 			);
 
+			UE_LOG(LogTemp, Log, TEXT("DynamicIronBlock [RenderThread]: GroupCount=(%d,%d,%d), adding compute pass..."),
+				GroupCount.X, GroupCount.Y, GroupCount.Z);
+
 			// 添加计算Pass
 			FComputeShaderUtils::AddPass(
 				GraphBuilder,
@@ -957,13 +966,12 @@ void ADynamicIronBlock::DispatchTemperatureCompute(float DeltaTime)
 				GroupCount
 			);
 
-			// TODO: 添加数据复制Pass（从RDG回RHI）
+			UE_LOG(LogTemp, Log, TEXT("DynamicIronBlock [RenderThread]: Compute pass added, executing RDG..."));
-			// 暂时跳过，需要实现正确的缓冲区提取
 
-			// 执行RDG
+			// 执行RDG，自动处理资源转换和同步
 			GraphBuilder.Execute();
 
-			UE_LOG(LogTemp, Warning, TEXT("DynamicIronBlock: Temperature compute dispatched (%d x %d x %d groups) - Data copy not yet implemented"),
+			UE_LOG(LogTemp, Log, TEXT("DynamicIronBlock: Temperature compute dispatched successfully (%d x %d x %d groups)"),
 				GroupCount.X, GroupCount.Y, GroupCount.Z);
 		});
 }