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CRACK123

Getting vertices out of x file

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Hi, I am trying to get the vertex information out of a X file using DirectX. This is the code I have currently :-
LPD3DXMESH tempMesh;
	m_pMesh->CloneMeshFVF(D3DXMESH_SYSTEMMEM, D3DFVF_XYZ, RendererMgr::GetInstance().GetDevice(), &tempMesh); 
	DWORD fvf = tempMesh->GetFVF();

	// get the vertices
	D3DXVECTOR3 *vertices;

	tempMesh->LockVertexBuffer(D3DLOCK_READONLY, (LPVOID *)&vertices);

But this seems to give me wrong results. Could someone please tell me what I am doing wrong here. Thanks

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Why do you think you're getting the wrong results?

Not knowing what you're comparing the vertices to, you might try locking the index buffer and accessing the vertices as indexed.

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Here is a snippet, that you can extract all vertices.


//Get the number of vertices in the mesh
int numVertices = mesh->GetNumVertices();
//The size of the FVF
DWORD stride = D3DXGetFVFVertexSize(mesh->GetFVF());
//Pointer to the current position in the mesh vertex buffer
BYTE *ptr = NULL;
//Lock the vertex buffer
mesh->LockVertexBuffer(0, (void**)&ptr);
//vector to hold the positions of the vertices in the mesh
std::vector<D3DXVECTOR3>positions;
//For all of the vertices put them in the vector
for(int i = 0; i < numVertices; i ++)
{
//pos = the position of a vertex
D3DXVECTOR3 *pos = (D3DXVECTOR3*)ptr;
//put it in the vector
positions.push_back(D3DXVECTOR3(pos->x, pos->y, pos->z));
//Increase the pointer in the vertex buffer by the size of the FVF
ptr += stride;
}




Hope it helps. :)

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