Can I use a separate alpha channel texture for a texture map? Like the
D3DFMT_A8 format? I have been googling to see if I can find it, but I can't
find anything. What I would like to do is make a luminosity map, by
rendering the designated triangles twice. Once with normal shading and
eventual standard alpha blending, and once more with no shading and the
separate "luminosity map" as alpha, to create the illusion of a
Or is there a better way? I've been thinking for quite some time...