Comments by AlexlyBlue De Lu (Top 3 by date)

As what GPUToaster said, I had tried to duplicate vertex buffer, and I could get the UV Information. But uv information is not enough for me to put them into render engine. My render engine sdk shows I need put uvw information if using uvw mapping.
So that's why I wondered how to get the w value...
By the way, thanks for your help.