I'm in the process of baking on my Gun model but came across an issue that I haven't been able to fix yet. The top pieces of the gun here are completely hard surfaces with all hard edges. For whatever reason, when I import it to Substance Painter it smooths certain areas.
I've gone back and hardened edges again, cleaned up the model and further optimized the UVs, but I'm still coming across this issue. I also went ahead and updated to the latest version Painter in the hopes it was a version bug, but the issue still exists.
Lastly, I tried the Game Export setting in Maya instead of the traditional export selection option with smoothing groups disabled. This didn't help either.
I've attached a few images below which showcase this issue.
Not sure what could be causing the problem. Please let me know your thoughts.
Thanks in advance!