I have two questions. I'm using GLUT and GLEW.
1) Why does it not allow me to enter fullscreen at the resolution specified?
But, it seems like it's entering fullscreen at my desktop resolution (1280x720).Code :To enter fullscreen, I use the following routines: glutGameModeString("640x480:16@120"); glutEnterGameMode();
2) If that can't be changed, how can I prevent fullscreen from impacting performance on a lower resolution viewport?
I enter fullscreen at 1280x720, then set the viewport to 640x480. However, rendering is much slower than in windowed mode at that resolution. I thought that since the majority of the window area is black, it would render faster at fullscreen with a smaller viewport.