// Render a face while the stream is open
HRESULT CMeshStream::RenderMesh(CVertex *Vertices, short *Indices,
unsigned short NumVerts, unsigned short NumIndices,int TESTNUM)
{
	// if the stream is not open, open it
	if(!m_bLoaded)
		Open();

	// fail out if the values passed do not work
	if(Vertices == NULL)
		return E_FAIL;
	if(Indices == NULL)
		return E_FAIL;

	HRESULT r = 0;		// error holding value

	// create the index buffer
	g_pDevice->CreateIndexBuffer(sizeof(short)*NumIndices,
             D3DUSAGE_WRITEONLY,D3DFMT_INDEX16, D3DPOOL_DEFAULT, &m_pIB);
	if(FAILED(r))
	{
		ErrorMessage.Show("Could not create the index buffer");
		return E_FAIL;
	}

	// create the vertex buffer
	r = g_pDevice->CreateVertexBuffer(sizeof(CVertex)*NumVerts,
             D3DUSAGE_WRITEONLY,VERTEX_TYPE, D3DPOOL_DEFAULT, &m_pVB);
	if(FAILED(r))
	{
		ErrorMessage.Show("Could not create the vertex buffer");
		return E_FAIL;
	}

	BYTE* pData;	    // vertex buffer data
	BYTE* pIndexData;   // index buffer data

	r = m_pVB->Lock(0, 0, &pData, 0);  // lock the vertex buffer
	if(FAILED(r))
	{
		ErrorMessage.Show("Could not lock the vertex buffer");
		m_pVB->Release();
		return E_FAIL;
	}
	
	r = m_pIB->Lock(0, 0, &pIndexData, 0);  // lock the index buffer
	if(FAILED(r))
	{
		ErrorMessage.Show("Could not lock the index buffer");
		m_pVB->Release();
		return E_FAIL;
	}	

	// copy the indices into the index buffer
	CopyMemory(pIndexData, Indices, sizeof(short)*NumIndices);
	m_pIB->Unlock(); // unlock the index buffer			

	// copy the vertices to the vertex buffer
	CopyMemory(pData, Vertices, sizeof(CVertex)*NumVerts);
	m_pVB->Unlock(); // unlock the vertex buffer

	// connect the vertex buffer to a rendering stream
	g_pDevice->SetStreamSource(0, m_pVB, sizeof(CVertex));
	// tell direct3d about the index buffer
	g_pDevice->SetIndices(m_pIB, 0);

	// draw the mesh
	g_pDevice->DrawIndexedPrimitive(D3DPT_TRIANGLELIST,0,NumIndices,
           0,(NumIndices/3));

	m_pVB->Release();
	m_pIB->Release();
	
	return S_OK;
}