Model Rendering | GameDev.net

http://www.nut-shell.com/~josh/Upload/files/ModelTest.zip this is a small (only 53KB) app, that should explain you my problem while rendering x files... This is my global model pointer CD3DFile * enemy; during the initialisation I use the following code: enemy = new CD3DFile(); enemy->Load("helicopter.x"); This is my main loop

  
while(!done)
{
	//dd is the DirectDraw interface

	if(FAILED(dd.ClearBuffer(BK_COLOR)))
		done = true;

	D3DMATRIX matWorld;

	matWorld._11 = matWorld._22 = matWorld._33 = matWorld._44 = 1.0f;
	matWorld._12 = matWorld._13 = matWorld._14 = matWorld._41 = 0.0f;
	matWorld._21 = matWorld._23 = matWorld._24 = matWorld._42 = 0.0f;
	matWorld._31 = matWorld._32 = matWorld._34 = matWorld._43 = 0.0f;
		
	matWorld._22 =  cosf(i);
	matWorld._23 =  sinf(i);
	matWorld._32 = -sinf(i);
	matWorld._33 =  cosf(i);

	matWorld._44 = 20.0f;
	i += 0.005;

	d3ddev->SetRenderState(D3DRENDERSTATE_CULLMODE, TRUE);
	d3ddev->SetRenderState(D3DRENDERSTATE_FILLMODE, D3DFILL_WIREFRAME);

	d3ddev->SetTransform(D3DTRANSFORMSTATE_WORLD, &matWorld);

	d3ddev->BeginScene();
	enemy->Render(d3ddev);
	d3ddev->EndScene();

	d3ddev->SetRenderState(D3DRENDERSTATE_FILLMODE, D3DFILL_SOLID);
}

This is the code for clearing the BackBuffer Surface

  
HRESULT CRat_DirectDraw::ClearBuffer(DWORD Color)
{
	HRESULT ddrval;
	DDBLTFX ddBltFx;

	ZeroMemory(&ddBltFx, sizeof(DDBLTFX));
	ddBltFx.dwSize = sizeof(DDBLTFX);
	ddBltFx.dwFillColor = Color;
	
	ddrval = m_lpDDSBack->Blt(NULL, NULL, NULL, DDBLT_COLORFILL | DDBLT_WAIT, &ddBltFx);

	return ddrval;
}

This is the code for initialising the d3d device. I know its kind of dirty still but I''ll include a graphic board device enumeration later. Anyhow this should not be the problem...

  
HRESULT CRat_Direct3D::Init(CRat_DirectDraw *pDDrawDevice)
{
	HRESULT d3drval;

	LOG("CRat_Direct3D::Init() called -> ");

	if((!pDDrawDevice) || (!pDDrawDevice->IsInitialised()))
	{
		LOG("Error, No valid CRat_DirectDraw pointer given\n");
		return D3DERR_INVALID_DEVICE;
	}

	DWORD dwScreenX = pDDrawDevice->GetScreenX();
	DWORD dwScreenY = pDDrawDevice->GetScreenY();
	LPDIRECTDRAW7 lpDD = pDDrawDevice->GetDirectDrawDevice();
	LPDIRECTDRAWSURFACE7 lpDDSBack = pDDrawDevice->GetBackBuffer();

	if(lpDD == NULL)
	{
		LOG("Error, No valid DirectDraw Device pointer in CRat_DirectDraw Object\n");
		return D3DERR_INVALID_DEVICE;
	}

	m_pDDraw = pDDrawDevice;

	if(lpDDSBack == NULL)
	{
		LOG("Error, No valid Backbuffer pointer in CRat_DirectDraw Object\n");
		return D3DERR_INVALID_DEVICE;
	}

	d3drval = lpDD->QueryInterface(IID_IDirect3D7, (LPVOID *)&m_lpD3D);

	if(FAILED(d3drval))
	{
		m_lpD3D = NULL;
		LOG("Error, in QueryInterface() for Direct3D Object\n");
		return d3drval;
	}

	initialised = true;

	d3drval = m_lpD3D->CreateDevice(IID_IDirect3DTnLHalDevice, lpDDSBack, &m_lpD3DDevice);

	if(FAILED(d3drval))
	{
		LOG("Initialisation with IID_IDirect3DTnLHalDevice failed, trying IID_IDirect3DHALDevice\n");
		LOG("CRat_Direct3D::Init() called -> ");

		d3drval = m_lpD3D->CreateDevice(IID_IDirect3DHALDevice, lpDDSBack, &m_lpD3DDevice);

		if(FAILED(d3drval))
		{
			LOG("Initialisation with IID_IDirect3DHALDevice failed, trying IID_IDirect3DMMXDevice\n");
			LOG("CRat_Direct3D::Init() called -> ");

			d3drval = m_lpD3D->CreateDevice(IID_IDirect3DMMXDevice, lpDDSBack, &m_lpD3DDevice);

			if(FAILED(d3drval))
			{
				LOG("Initialisation with IID_IDirect3DMMXDevice failed, trying IID_IDirect3DRGBDevice\n");
				LOG("CRat_Direct3D::Init() called -> ");

				d3drval = m_lpD3D->CreateDevice(IID_IDirect3DRGBDevice, lpDDSBack, &m_lpD3DDevice);

				if(FAILED(d3drval))
				{
					LOG("Error, Initialisation with IID_IDirect3DRGBDevice failed, no valid D3D Device detected\n");
					UnInit();
					return d3drval;
				}
				else
					LOG("IID_IDirect3DRGBDevice found");
			}
			else
				LOG("IID_IDirect3DMMXDevice found");
		}
		else
			LOG("IID_IDirect3DHALDevice found");
	}
	else
		LOG("IID_IDirect3DTnLHalDevice found");

	D3DVIEWPORT7 D3DViewport;
	D3DViewport.dwX	= 0;
	D3DViewport.dwY	= 0; 
	D3DViewport.dwWidth	= dwScreenX;
	D3DViewport.dwHeight = dwScreenY; 
	D3DViewport.dvMinZ = 0.0f;
	D3DViewport.dvMaxZ = 1.0f;
	
	d3drval = m_lpD3DDevice->SetViewport(&D3DViewport);

	if(FAILED(d3drval))
	{
		LOG("... Error, in SetViewport() for D3DDevice\n");
		UnInit();
		return d3drval;
	}

	LOG("... OK\n");

	return D3D_OK;
}

Thats all. So what could be the problem? Thx in advance... Tobias Nöll / Germany

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