FWIW, 3dfx/glide can do widescreen. Just lower resolution than 1024x768 if the game supports it. (voodoo2 hardware limitation) I think the quake/unreal series supported it, but whether or not anyone else did is unknown.
I haven't tried it yet, so I'd have to check to find out.
Nope, but 1080p works in d3d. Maybe because I tried using dgvoodoo for d3d?
The included ddraw.dll seems to be the best ddraw.dll, but I REALLY don't like how it changes your resolution to 640x480 instead of 640x480 scaled to native resolution. I don't know which ddraw.dll it is either, to see if there is an update.
This game also has a 1.3 version, and 2.0 version available, which the 1.3 version requires a nocd and only works in 3dfx as the d3d says dx6 required, and 2.0 both says dx6 required. IMO, GOG should have used the latest available version, and applied their custom patches to it instead of 1.2.
The 1.3 patches will not install on 64-bit OSes, so you need to find a pre-extracted zip, and 2.0 has the dx6 error message. https://www.vogons.org/viewtopic.php?t=45658 https://patches-scrolls.de/patch/3407/7/29835
Someone who knows their old game hacking needs to fix the 1.3/2.0 exe, find a better ddraw.dll, and this would probably be a decent working game. I'll do some more research in the meantime.