Thread: .X File format and DirectX. Crashing, but why? Damn this world!

My program is crashing, but I really cannot pinpoint the problem. Tried commenting stuff out... debugging, etc...

By the way I was following the example that shipped with DirectX9 SDK on loading meshes.

I've pinpointed the problem to this section of code:

Code:

g_pD3DDevice9->BeginScene();
	
D3DXMATRIXA16 xmatWorld, xmatTemp1, xmatTemp2;

D3DXMatrixTranslation(&xmatWorld, 0.0f,	-2.0f, 10.0f);

D3DXMatrixRotationY(&xmatTemp1, g_fRotAngleY);

D3DXMatrixRotationX(&xmatTemp2, g_fRotAngleX);

xmatWorld = xmatTemp1 * xmatTemp2 * xmatWorld;

g_pD3DDevice9->SetTransform(D3DTS_WORLD, &xmatWorld);	
														for(DWORD i = 0; i < g_dwNumMaterials; i++)
{
  g_pD3DDevice9->SetMaterial(&g_pMeshMaterials[i]);
  g_pMesh->DrawSubset(i);
}

g_pD3DDevice9->EndScene();

g_pD3DDevice9->Present(NULL, NULL, NULL,  NULL);

Code:

bool LoadObjects()
{
  LPD3DXBUFFER pD3DXMtrlBuffer;
	
  D3DXLoadMeshFromX("box.x", D3DXMESH_SYSTEMMEM, g_pD3DDevice9, NULL, &pD3DXMtrlBuffer,	NULL, &g_dwNumMaterials, &g_pMesh);
	
  D3DXMATERIAL *meshData = (D3DXMATERIAL*)pD3DXMtrlBuffer->GetBufferPointer();

  g_pMeshMaterials = new D3DMATERIAL9[g_dwNumMaterials];

  for (DWORD i = 0; i < g_dwNumMaterials; i++)
  {
    g_pMeshMaterials[i] = meshData[i].MatD3D;
    g_pMeshMaterials[i].Ambient = g_pMeshMaterials[i].Diffuse;
 }

 pD3DXMtrlBuffer->Release();

 return true;
}

Code:

g_pMesh->DrawSubset(i);

The above line seems to be my problem. On the first pass through I get the following message but the program continues.

Code:

First-chance exception in Test.exe (KERNEL32.DLL): 0xE06D7363: Microsoft C++ Exception.

Second time through I get

Code:

First-chance exception in Test.exe: 0xC0000005: Access Violation.

and my program crashes. Anyone know what this means?

3DStudioMax7 using Plugin shipped with DirectX9 SDK
Microsoft Visual C++ 6.0

I'm befuddled as when I use the file shipped with the tutorial the program works perfectly fine. (tiger.x)

My box.x is just a simple cube, no materials.

Any ideas? I'm quite peeved at this troublesome problem