Are the ripples/waves in BeamNG truck beds a texture or implemented into the model?

Hello. Im currently working on the Saguma Move kei truck WIP mod. I'm working on the bed and wanted to know if the ripple/wave on the beamng truck beds (pigeon, d series) along with the walls is a texture or molded into the 3d model for the vehicle. I would think that it would crush a bit funky with the ripples as part of the models, but what do i know. Anywhere, if it is a texture, where can i find it to use in my mod? Thanks.

 

As far as I am aware they are in the 3D models

 

It's a normal/bump map as having it as a mesh would make them deform badly

 

Thanks Slithy! Do you need where i can get that bump map from the other pickup vehicles? Would I import the model and copy the map? First time modder

 

I have no idea where those would be, but one thing you can do is to make your own, as it's pretty much as easy as just drawing lines etc. in a drawing program. I can't tell you more about it as I don't fully know myself, but there are tons of such tutorials online