Since the removal of Mental Ray from 3ds Max, I wanted to share a quick way to make a clean AO map from within 3ds Max 2019 using the old Skylight method. This uses a simple render-to-texture that was popular long ago and is "tried and true" for those who don't have access to Substance or Marmoset to render their AO. Hope it helps!*******************************High Quality Training by Game Industry pros! Check us out at 3dmotive.com! 3dmotive is your one-stop shop for 3d and video game art and animation tutorials. Our software training includes Autodesk's 3ds Max, Maya, Photoshop, UDK, ZBrush, Unity, and a whole lot more. If you want to learn 3d modeling and game art, 3dmotive has what you need - including beginner, intermediate, and advanced tutorials.