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billybob

calculating the size that a FVF will take up

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how would you calculate the size of the structure that a FVF will take up. so if you are passed the FVF D3FVF_XYZ | D3DFVF_NORMAL | D3DFVF_DIFFUSE, how would you calculate the size of the vertex that that will take up. i do not have ''access'' to the original structure, only the FVF. using something like this: if(d3dfvf & D3DFVF_XYZ) Total += sizeof(float) * 3; if(d3dfvf & D3DFVF_DIFFUSE) Total += sizeof(DWORD); ... doesn''t work and i''m fairly sure its because of struct padding.

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Straight from D3DX...it''s a huge time saver...

UINT D3DXGetFVFVertexSize(
DWORD FVF
);

~Aeroum

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