IDirect3DVertexBuffer9* pStreamData = NULL;
UINT iOffsetInBytes,m_Stride;
pDevice->GetStreamSource(0,&pStreamData,&iOffsetInBytes,&m_Stride);
if ( m_Stride == 40)
{
pDevice->SetRenderState(D3DRS_ZENABLE, D3DZB_FALSE);
pDevice->SetRenderState(D3DRS_ZFUNC,D3DCMP_NEVER);
}

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