When you switch to REGULAR you need to readjust your 3d objects Z height properties (z height not z elevation), so if you want say a cube to look correct make sure the z height is the same as the objects width and height properties.
Also i think an FOV of 90 is quite high, it might produce a "Fish eye" look?
hmmm, when option in past was set default as Normalized, all z 3d obiect height looks normal in game
i need just little wider field of view in FPS game, i read somewhere on forum, Defauld FOV is 72 thats why i think 90 should be better.
OMG i have lot of obiect to change if i should readjust z height...