MarkoH01: They should have gone the opposite way and patching it into those other versions. I was a bit sad that they omitted that mode since it was the way I usually played these games.
neumi5694: Apparently - according to discord - people have been complaining about the missing filter mode, so maybe they'll add it.
It will never look like 3dfx Voodoo however, first of all the resolution is much higher and Voodoo didn't have as many colors (all cards up to the Voodoo5 only had 16 Bit colors).
But it would be nice nonetheless.
I simply want the option to make it look like the old GOG version which uses a Voodoo wrapper. I am sure nobody has any interest in seeing the game in a lower resolution just because the original voodoo version of the game could only be run in pretty low resolution.