You know how you don't benchmark some of the little things until you really need to and then they surprise you? Well this surprised me. I wasn't expecting there to be much performance drop in using an environment map instead of a texture, but it's actually quicker. Is that likely to be the case on all videocards?
If you want to test it, just create an object, apply a texture and count the fps. Then add a 64 flag to the load texture. In my tests, it went from 2709 fps with 2726.
If you want to test it, just create an object, apply a texture and count the fps. Then add a 64 flag to the load texture. In my tests, it went from 2709 fps with 2726.