There is a part of the track loading process called "Bump textures". But I haven't seen any textures that would use bump mapping in LFS. Or does the line mean something else? Or what is it? Just curious

Are you talking about the textures used for bumps, or something different?

I know in aston there is a file called roadbump

Quote from imthebestracerthereis :

Are you talking about the textures used for bumps, or something different?

I doubt it refers to these textures, because that message has been there forever. See the attachment. It shows this message when you load a track.

DX8.1 have bump mapping support for textures?

This may be related to the track geometry itself. Something like an invisible heightmap overlayed on the low-poly base model for the track surface.

If so, it's a nice way to keep the track surface realistic feeling, while keeping the visual aspects FPS friendly.

Quote from Mr. Kninja :

This may be related to the track geometry itself. Something like an invisible heightmap overlayed on the low-poly base model for the track surface.

If so, it's a nice way to keep the track surface realistic feeling, while keeping the visual aspects FPS friendly.

You're probably right, I forgot about these invisible "textures"

From my understanding of the SMX and PTH files, there are 65536 units in 1 game meter, that's a pretty good level of fidelity already. That is millimeter precision in the game.