Rogue Squadron is supported by nGlide (or at least the demo is mentioned on the page below) so I assumed GOG would be using it, but it's hard to tell from what people are saying so I figured I'd straight up ask.

http://www.zeus-software.com/downloads/nglide/compatibility

I don't think it does, but you could easily install nGlide yourself and use it with the game. Running this through nGlide is a mixed bag though; resolution and framerate are higher (which is nice of course), but the latter will make your ship fly away from the camera off into the distance.
So unless you're OK with playing the entire game in cockpit mode with which the bug doesn't occur, nGlide is not really an option anyway.

Huh, that's too bad. I wonder if this is possibly a bug that Zeus could address or if it goes back to using Glide back in the day, too.

I can confirm that at present it does not use nglide. It just uses the Direct3D renderer that came with the game.

It is possible to get nglide working with it, but not portably it seems, only when it is installed so that the glide2x.dll is in the System32/SysWOW64 folders. You can then tell the launcher to detect 3dfx by adding a -voodoo3 switch to the shortcut, then use the settings menu to choose the 3dfx option.

As a note, don't use nglide 1.03 as it is reported that this causes the game to crash after every mission, and this should be fixed in the next version.

EDIT: Oh, that camera bug is present even without nglide. Loads of people are experiencing it and posting about it here in the forums. I get it too. Just have to keep switching the camera mode. Can get a little annoying at times.

You can get to get it to work(google play Rouge Squadron on modern pc), however there's too many glitches that it's not really worth it.

You get the camera glitch(where the camera gets further and further away from your ship) and it crashes every mission. The only fix for the crash I've found is a patch for the Xp version and requires the disc. I'm keeping my fingers crossed GOG will fix the kinks and patch it into the game natively because it looks so much better and runs very smooth with it.

Not sure why, but my version of the game defaulted to using nglide and the game ran too fast and looked like crap/no particle effects, yet when running the game using D3D mode, the game looks and runs far better on my Win7 64-bit PC. Weird nonetheless, but I'm glad D3D seems to work better for me...

I'm guessing you already had nglide installed on your machine, then, as the GOG version of Rogue Squadron 3D doesn't come with it. Not yet anyway, there is always the possibility that it will get added in time.

I guess that must be the case - I had forgotten that I had installed it when I was trying to get some other game to work.

What version of nGlide are you running? Try 1.02, see if you get a better experience.

Do you think that the newest version (v1.03) would be preferable then?

http://www.zeus-software.com/downloads/nglide

Aren't there specific problems with v1.03 & this game?

Nope, I explicitly meant 1.02. There's a bug that causes crashes on 1.03, and it's supposed to be addressed in the next release, 1.04. Until then, 1.02 it is.

Also, don't disable Vsync in nGlide configurator or your GPU panel, otherwise the game will work too fast.

Oh, okay - I'll try to see how it works with 1.02 then - I'll make another post when I've tested it out that way.

EDIT: For some reason, the only version it won't let me DL is 1.02, so it looks like I'll just stick with Direct3D and wait for nGlide version 1.04.

I can't download 1.02 from the website either, because Avast detects a virus/malware in the file. The other versions are okay. It may be a false positive, I don't know. However, I have other GOG games with nGlide included, and some I put together myself in portable versions, so I have the nGlide 1.02 DLL files and configurator tools elsewhere, and they scan fine, so it must be the installer that's causing the detection.