修复 NanoVDB 加载后渲染黑屏问题

问题原因：
1. RunNanoVDBTest 在 LoadNanoVDB 之后重复调用了 EndCommandList()，
   而 LoadNanoVDB 内部已经完整处理了命令列表生命周期
2. 命令列表状态混乱导致后续渲染失效

修复内容：
1. 移除 RunNanoVDBTest 中重复的 EndCommandList/WaitForCompletion 调用
2. 在 main.cpp 添加控制台输出重定向，方便调试
3. 添加 run.bat 启动脚本

main.cpp

@@ -40,9 +40,6 @@ void RunNanoVDBTest() {
 	printf("[NanoVDB Test] Done.\n");
 
 	FreeNanoVDB(vdbData);
-
-	EndCommandList();
-	WaitForCompletionOfCommandList();
 }
 
 LRESULT CALLBACK WindowProc(HWND inHWND, UINT inMSG, WPARAM inWParam, LPARAM inLParam) {
@@ -54,6 +51,11 @@ LRESULT CALLBACK WindowProc(HWND inHWND, UINT inMSG, WPARAM inWParam, LPARAM inL
 	return DefWindowProc(inHWND, inMSG, inWParam, inLParam);
 }
 int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLine, int inShowCmd) {
+	AttachConsole(ATTACH_PARENT_PROCESS);
+	freopen("CONOUT$", "w", stdout);
+	freopen("CONOUT$", "w", stderr);
+	printf("XCVolumeRenderer started\n");
+	printf("Initializing D3D12...\n");
 	//register
 	WNDCLASSEX wndClassEx;
 	wndClassEx.cbSize = sizeof(WNDCLASSEX);
@@ -99,22 +101,33 @@ int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLi
 	}
 	//show
 	InitD3D12(hwnd, 1280, 720);
+	printf("D3D12 initialized\n");
 	ID3D12GraphicsCommandList* commandList = GetCommandList();
 	ID3D12CommandAllocator* commandAllocator = GetCommandAllocator();
-	StaticMeshComponent staticMeshComponent;
-	staticMeshComponent.InitFromFile(commandList, "Res/Model/Sphere.lhsm");
 
 	bool runTest = true; // set to true to run NanoVDB test
 	if (runTest) {
 		RunNanoVDBTest();
 	}
+	printf("After NanoVDB test\n");
+
+	StaticMeshComponent staticMeshComponent;
+	staticMeshComponent.InitFromFile(commandList, "Res/Model/Sphere.lhsm");
+	printf("Mesh loaded, vertex count: %d\n", staticMeshComponent.mVertexCount);
 
 	ID3D12RootSignature* rootSignature = InitRootSignature();
+	printf("Root signature created\n");
 	D3D12_SHADER_BYTECODE vs,gs,ps;
 	CreateShaderFromFile(L"Res/Shader/gs.hlsl", "MainVS", "vs_5_1", &vs);
 	CreateShaderFromFile(L"Res/Shader/gs.hlsl", "MainGS", "gs_5_1", &gs);
 	CreateShaderFromFile(L"Res/Shader/gs.hlsl", "MainPS", "ps_5_1", &ps);
 	ID3D12PipelineState*pso=CreatePSO(rootSignature, vs, ps, gs);
+	printf("PSO created: %p\n", pso);
+
+	ID3D12Device* device = GetD3DDevice();
+	if (device->GetDeviceRemovedReason() != S_OK) {
+		printf("DEVICE REMOVED! Reason: 0x%08X\n", device->GetDeviceRemovedReason());
+	}
 
 	ID3D12Resource* cb = CreateConstantBufferObject(65536);//1024x64(4x4)
 	DirectX::XMMATRIX projectionMatrix=DirectX::XMMatrixPerspectiveFovLH(
@@ -154,8 +167,10 @@ int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLi
 	int imageWidth, imageHeight,imageChannel;
 	//stbi_set_flip_vertically_on_load(true);
 	stbi_uc* pixels = stbi_load("Res/Image/earth_d.jpg", &imageWidth, &imageHeight, &imageChannel, 4);
+	printf("Texture loaded: %dx%d, pixels=%p\n", imageWidth, imageHeight, pixels);
 	ID3D12Resource* texture = CreateTexture2D(commandList, pixels,
 		imageWidth * imageHeight * imageChannel, imageWidth, imageHeight,DXGI_FORMAT_R8G8B8A8_UNORM);
+	printf("Texture created: %p\n", texture);
 	delete[]pixels;
 	ID3D12Device* d3dDevice = GetD3DDevice();
 
@@ -180,13 +195,16 @@ int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLi
 
 	EndCommandList();
 	WaitForCompletionOfCommandList();
+	printf("All resources uploaded to GPU\n");
 	
 	ShowWindow(hwnd, inShowCmd);
 	UpdateWindow(hwnd);
+	printf("Window shown, entering render loop\n");
 	float color[] = {0.5f,0.5f,0.5f,1.0f};
 	MSG msg;
 	DWORD last_time = timeGetTime();
 	DWORD appStartTime = last_time;
+	int frameCount = 0;
 	while (true){
 		ZeroMemory(&msg, sizeof(MSG));
 		if (PeekMessage(&msg,NULL,0,0,PM_REMOVE)) {
@@ -217,10 +235,18 @@ int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLi
 			commandList->SetGraphicsRootDescriptorTable(2, srvHeap->GetGPUDescriptorHandleForHeapStart());
 			commandList->SetGraphicsRootShaderResourceView(3, sb->GetGPUVirtualAddress());
 			commandList->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
+			if (frameCount == 1) {
+				printf("Drawing mesh with %d vertices, VBO=%p, subMeshes=%zu\n", 
+					staticMeshComponent.mVertexCount, staticMeshComponent.mVBO, staticMeshComponent.mSubMeshes.size());
+			}
 			staticMeshComponent.Render(commandList);
 			EndRenderToSwapChain(commandList);
 			EndCommandList();
 			SwapD3D12Buffers();
+			frameCount++;
+			if (frameCount <= 3) {
+				printf("Frame %d rendered\n", frameCount);
+			}
 		}
 	}
 	return 0;

run.bat

@@ -0,0 +1,4 @@
+@echo off
+cd /d "%~dp0"
+Release\XCVolumeRenderer.exe
+pause