Okay, so I’ve got a weird issue going on. I use ZBrush 3.5 and used it to generate a 2048 x 2048 normal map from a 5 million poly model (yeah, the model’s higher res than the map, but that’s not really an issue here).
I export the normal map, texture, and .obj of my model to Max, import it all there, and assign the textures as normal.
But when I rendered, the normal map inverted on the -x axis of the model. To make that clearer (just in case), the raised bumps on the +x axis of the normal map became depressions on the -x axis. It’s really weird.
The first thing I did was check the normals on my model, but they’re all properly aligned. There are the flip R, G, and B settings in the normal map dialog, but they didn’t resolve the issue either (at least, not in any combination that I tried).
Any help would be great. I’ve got a demo reel in process and am really looking forward to getting it out the door.
Thanks ahead of time,
Brian