I started modeling this iphone case in Moi 3d, but ran into this shading problem while testing to see how it renders out. It’s supposed to be made from glass. The model to the right is from somebody else’s project and it renders correctly. The problem is caused after I punch the hole through it.
What am I doing wrong? I’m new to CAD modeling, so I’m hoping it’s a general issue that I am not aware of, rather than the program (Moi 3d) itself, so that’s why I’m posting this here.