If NightDive's version still has compatible renderers (Glide or DirectX up to 9), it can be done with the help of dgVoodoo. Download it here:
http://www.dege.freeweb.hu/dgVoodoo2/dgVoodoo2.html (below the ‘Latest stable version’).
From the downloaded archive put dgVoodoo.conf, dgVoodooCpl.exe to the game's main directory with the executable file; then add the contents of the 3Dfx\x86\ folder (without the
Napalm folder) and MS\x86\.
Run dgVoodooCpl, in the first tab, see if the ‘Config folder / Running instance’ has the location of the game's directory, if not, press .\ to the right of it.
Still in the first tab, change the scaling mode to ‘Stretched, 4:3 Aspect Ratio’ (I don't know NightDive's modifications enable proper wide-screen and it would probably make some cutscenes look bad anyway) (the ‘CRT-like’ is a shader, it looks pretty good).
In the Glide tab, set the resolution to ‘Max’; ‘Enable Glide Gamma Ramp’ should be enabled; disable ‘3Dfx Watermark’ (it's useful in testing if the wrapper works at all); (Voodoo 2 should be the default selection as the card).
In the DirectX tab, if at all applicable, set the resolution to Max and disable the watermark; the card should be fine either as virtual 3D or GeForce 4.
Launch the game, try to set it to run with the Glide renderer (whatever it might be called), and set the resolution to 640x480 or 800x600 (the scaling of the menu should indicate which one was the default). If dgVoodoo is working, you will have the UI scaled up, preserving the proportions it had at those lower resolutions, while playing at the highest 4:3 resolution your monitor can render. The CRT shader is useful in that it smooths things out a bit since LCDs make the graphics look sharper.
I don't think the game had a DirectX renderer, but if it does, then you could try it too. You'd just need to put in the contents of MS\x86\ in the game's directory and change the settings for DirectX.
If this solution works, you can also enable the dithering effect that games used to have, though I'm not sure if Sin still had 16-bit graphics. Open dgVoodoo.conf in the Notepad and find two instances of ‘DitheringEffect’. In the first one change
pure32bit to
dither2x2, in the second instance, change it to
ordered2x2.
If the game doesn't have the right renderers, you could still use this method with the older version. It's also good for dealing with the UI in just about every other older game and using the Glide renderer usually produces better visuals.
