diff --git a/Source/BladeSmith/DynamicIronBlock.cpp b/Source/BladeSmith/DynamicIronBlock.cpp
index 813a18b..67b2498 100644
--- a/Source/BladeSmith/DynamicIronBlock.cpp
+++ b/Source/BladeSmith/DynamicIronBlock.cpp
@@ -78,9 +78,9 @@ void ADynamicIronBlock::Tick(float DeltaTime)
 		// 重置计时器
 		TimeSinceLastUpdate = 0.0f;
 
-		// 下载数据并更新顶点颜色（可选，性能开销较大）
-		// DownloadTemperatureDataFromGPU();
-		// UpdateVertexColors();
+		// 从GPU下载温度数据并更新顶点颜色
+		DownloadTemperatureDataFromGPU();
+		// 注意：UpdateVertexColors()会在DownloadTemperatureDataFromGPU的回调中异步调用
 	}
 }
 
@@ -481,6 +481,61 @@ void ADynamicIronBlock::HeatRegion(FVector WorldCenter, float Radius, float Temp
 	UE_LOG(LogTemp, Log, TEXT("DynamicIronBlock: Heated %d voxels in region (center: %s, radius: %.2f)"),
 		AffectedVoxels, *LocalCenter.ToString(), Radius);
 
+	// 调试：输出距离Hit点最近的4个体素的温度
+	struct FVoxelDebugInfo
+	{
+		FIntVector Coord;
+		float Distance;
+		float Temperature;
+	};
+	TArray<FVoxelDebugInfo> NearestVoxels;
+	
+	// 查找最近的体素
+	for (int32 Z = MinZ; Z <= MaxZ; ++Z)
+	{
+		for (int32 Y = MinY; Y <= MaxY; ++Y)
+		{
+			for (int32 X = MinX; X <= MaxX; ++X)
+			{
+				FVector VoxelCenter = GridOrigin + FVector(
+					(X + 0.5f) * VoxelSizeCM.X,
+					(Y + 0.5f) * VoxelSizeCM.Y,
+					(Z + 0.5f) * VoxelSizeCM.Z
+				);
+				float Distance = FVector::Dist(VoxelCenter, LocalCenter);
+	
+				int32 Index = GetTemperatureIndex(X, Y, Z);
+				FVoxelDebugInfo Info;
+				Info.Coord = FIntVector(X, Y, Z);
+				Info.Distance = Distance;
+				Info.Temperature = TemperatureGrid[Index].Temperature;
+	
+				NearestVoxels.Add(Info);
+			}
+		}
+	}
+
+	// 按距离排序
+	NearestVoxels.Sort([](const FVoxelDebugInfo& A, const FVoxelDebugInfo& B) {
+		return A.Distance < B.Distance;
+	});
+	
+	// 输出最近的4个体素
+	UE_LOG(LogTemp, Warning, TEXT("=== Nearest 4 Voxels to Hit Point ==="));
+	for (int32 i = 0; i < FMath::Min(4, NearestVoxels.Num()); ++i)
+	{
+		const FVoxelDebugInfo& Info = NearestVoxels[i];
+		UE_LOG(LogTemp, Warning, TEXT("  Voxel[%d,%d,%d] Distance=%.2fcm Temperature=%.1f°C"),
+			Info.Coord.X, Info.Coord.Y, Info.Coord.Z, Info.Distance, Info.Temperature);
+	}
+
+	// 将更新后的温度数据上传到GPU
+	if (bGPUBuffersReady.load(std::memory_order_acquire))
+	{
+		UploadTemperatureDataToGPU();
+		UE_LOG(LogTemp, Log, TEXT("DynamicIronBlock: Temperature data uploaded to GPU after HeatRegion"));
+	}
+
 	// 更新顶点颜色以显示温度变化
 	UpdateVertexColors();
 }
@@ -848,6 +903,9 @@ void ADynamicIronBlock::DownloadTemperatureDataFromGPU()
 				}
 
 				UE_LOG(LogTemp, Log, TEXT("DynamicIronBlock: Temperature data downloaded from GPU"));
+
+				// 更新顶点颜色以反映新的温度
+				UpdateVertexColors();
 			});
 		});
 }
diff --git a/Source/BladeSmith/DynamicIronBlock.h b/Source/BladeSmith/DynamicIronBlock.h
index 8df2a11..48a841b 100644
--- a/Source/BladeSmith/DynamicIronBlock.h
+++ b/Source/BladeSmith/DynamicIronBlock.h
@@ -257,7 +257,7 @@ private:
 
 	bool bUseBufferA = true;  // Ping-Pong标志
 	float TimeSinceLastUpdate = 0.0f;  // 距离上次温度更新的时间
-	float TemperatureUpdateInterval = 0.1f;  // 温度更新间隔（秒）
+	float TemperatureUpdateInterval = 1.0f;  // 温度更新间隔（秒）
 
 	// GPU缓冲区是否已准备好（线程安全标志）
 	std::atomic<bool> bGPUBuffersReady{false};