I tried making a spinning cube with GL_TEXTURE_3D and the result looks quite good like it may actually have some use, however, even with the texture size at 16x16x16, I am getting ~0.5 fps.
I am just using the normal glvertex3f to draw a cube, then with glTexCoord3f for the texture coords, what do you think is the reason its going so slow? Are 3d textures just not supported by hardware or is it something wrong in the way I did it?
geforce 4 mx 440
athalon XP 1800+