Fix NanoVDBLoader: reset command list before use

NanoVDBLoader.cpp

@@ -8,8 +8,13 @@
 #include <cstring>
 #include <iostream>
 
-bool LoadNanoVDB(const char* filePath, NanoVDBData& outData, ID3D12GraphicsCommandList* cmdList) {
+bool LoadNanoVDB(const char* filePath, NanoVDBData& outData, ID3D12GraphicsCommandList* cmdList, ID3D12CommandAllocator* cmdAlloc) {
     try {
+        if (cmdAlloc && cmdList) {
+            cmdAlloc->Reset();
+            cmdList->Reset(cmdAlloc, nullptr);
+        }
+
         nanovdb::GridHandle<nanovdb::HostBuffer> gridHandle = nanovdb::io::readGrid(filePath);
         
         const uint64_t byteSize = gridHandle.buffer().bufferSize();

NanoVDBLoader.h

@@ -10,6 +10,6 @@ struct NanoVDBData {
     uint64_t elementCount;
 };
 
-bool LoadNanoVDB(const char* filePath, NanoVDBData& outData, ID3D12GraphicsCommandList* cmdList = nullptr);
+bool LoadNanoVDB(const char* filePath, NanoVDBData& outData, ID3D12GraphicsCommandList* cmdList, ID3D12CommandAllocator* cmdAlloc = nullptr);
 void FreeNanoVDB(NanoVDBData& data);
 

main.cpp

@@ -17,26 +17,32 @@ LPCWSTR gWindowClassName = L"BattleFire";
 
 void RunNanoVDBTest() {
 	ID3D12GraphicsCommandList* commandList = GetCommandList();
+	ID3D12CommandAllocator* commandAllocator = GetCommandAllocator();
 	const char* vdbFiles[] = {
 		"Res/NanoVDB/bunny.nvdb"
 	};
 
+	NanoVDBData vdbData = {};
+
 	for (int i = 0; i < sizeof(vdbFiles) / sizeof(vdbFiles[0]); i++) {
 		const char* currentVdbFile = vdbFiles[i];
 		printf("[NanoVDB Test] Loading: %s\n", currentVdbFile);
 
-		NanoVDBData vdbData;
-		bool loadSuccess = LoadNanoVDB(currentVdbFile, vdbData, commandList);
+		bool loadSuccess = LoadNanoVDB(currentVdbFile, vdbData, commandList, commandAllocator);
 		if (loadSuccess) {
 			printf("  SUCCESS - %llu bytes, %llu elements\n",
 				(unsigned long long)vdbData.byteSize,
 				(unsigned long long)vdbData.elementCount);
-			FreeNanoVDB(vdbData);
 		} else {
 			printf("  FAILED\n");
 		}
 	}
 	printf("[NanoVDB Test] Done.\n");
+
+	FreeNanoVDB(vdbData);
+
+	EndCommandList();
+	WaitForCompletionOfCommandList();
 }
 
 LRESULT CALLBACK WindowProc(HWND inHWND, UINT inMSG, WPARAM inWParam, LPARAM inLParam) {