Reply 1360 of 1447, by 7F20
Lazar81 wrote on 2021-07-17, 20:17:
Unfortunately nothing changes... Still the black screen/window problem.. 😐 fumbling around with output methods results that it looks like an OpenGL problem. It does not occur with overlay or ddraw. So what's the problem? I really would like to use OpenGL...
What's the resolution of the game you are trying to play? For SHARP shader to work fullscreen, your fullscreen resolution has to be a perfect integer multiple of the game's resolution.
Try first to set the resolution by hand. Instead of desktop, try 1600x1200 for a DOS 320x200 (640x400) VGA game. If the game is 640x480 (later DOS) or anything different, that's obviously not going to work, so you have to do the math. You might end up with black bars around the edges, depending on the resolution.
The other thing to try is set the machine to vgaonly for older titles.
Hope that helps.