Move a 2D texture in 3D

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Jake L.

If it's possible to change the projection matrix between drawing commands, this would be possible. As far as I know you can change the projection matrix as you like (at least under GL), so this should work:

<Set Ortho-Projection>
<Draw 2D-Stuff>
<Set 3D-Perspective-Projection>
<Draw 3D>
<Flip>

Have a look at the NeHe-Tutorials (in the BMax-Tutorials-Forum) for the 3D-Matrix and other stuff, should be easy to create a testapp.

You can manually set a 2D-Matrix by:

glMatrixMode GL_PROJECTION
glLoadIdentity
glOrtho 0,screenwidth%,screenheight%,0,-1,1

Don't know about the DirectX side, but should be possible, too.