I was originally going to DM this to @CreatureFeet because it was about Summoner, but since THQN has so many old games under their belt I figured I may as well put it in a more public eye for anyone that may run into issues with old games:
If you’re having 3D acceleration issues… it’s probably related to being such an old game, not any hardware issues.
Give dgVoodoo a look if you need to emulate the game. This will let you drop a few DLLs in the files to tinker around in a wrapper that brings 3DFX Glide or DirectX 7-8 (now even 9!) games to DirectX 10 or 11, with tweak options if necessary. It’s entirely free and made by a Hungarian programmer in his spare time. I can’t give you much more info than that, as I don’t really follow it too much. I just kind of check in every now and then, download the latest version, and spend a furious and excited few days tinkering around to see which old broken games I can get working this time. SHOGO even went up to “Playable-ish with some caveats” with the version I downloaded half a year ago, so I’m pretty excited to see what I can get working next! (Splinter Cell 1, prepare yourself)
Unfortunately the last time I tried to download dgVoodoo 2, it had been given a false positive by Chrome as a virus, and I had to use Edge (yuck) to download it. Unless something’s changed, the program’s entirely safe, and the trigger has everything to do with the fact that the software works as an injector and functions through DLLs you drop in the target game’s folder.
If you’re scared, I also know of an ENB that wraps DX8 games to DX9. Pretty niche fix, but it helped when I was trying to use RivaTuner to put a 30 FPS cap on Red Faction 1 (the physics get weird at high framerates and there’s a submarine section that outright ruins your playthrough if the FPS isn’t capped). There’s also nGlide, which will port 3DFX Glide to DX9 with a simple no-stress fix. It was great for an Unreal Tournament LAN party on busted-ass Windows 10-- however, it’s pretty old, not as flexible as dgVoodoo, and doesn’t cover any early DirectX versions.