Hi all, I’ve exported a simple low-poly mesh with a normal map from WM so that I can test rendering it in Octane. I’m having trouble though, because the mesh doesn’t texture properly in Octane. I tried applying the normal map as a bitmap to see what was going wrong, but it just appears as a single flat colour. In Vue the same .obj mesh textures perfectly normally.
I have a suspicion that this has something to do with UV mapping. Can anyone point me in the right direction for some information on how to get a WM mesh into Octane and textured?
UPDATE
I’ve done some more digging and found that WM2 doesn’t export UV data in the obj file. I have no idea how to create this to allow the textures to drape over the terrain properly in Octane. Does anyone here use Blender for this and if so, how?
I noticed this too. I use Maya, but re-creating the uv’s is a fairly easy process. You have to re-project the uv coords using a camera projection. The mesh should be a perfect square, so your uv’s should extend perfectly from 0,0 to 1,1. After that you might have to rotate them by 90 degrees until they line up with your textures from WM.
I use my WM terrains in Daz Studio. To do so, I had to run the mesh through Ultimate Unwrap 3D which immediately states the mesh has a problem but then also fixes it for me. So some UV mapping utility needs to work its magic on the mesh before some other programs will import it. I think even a free UV mapping program should do this. The only one I can think of at the moment is Roadkill UV (at least I think that is the name).