Bright model in scene kit iOS 12

Question

I have a problem with 3D model in SceneKit. I also use maxstARobjec After updating to iOS 12 it's start looking brighter than before (SCREENSHOTS WITH THE SAME ISSUE HERE)

I use 2 light node, without autoenablesDefaultLighting. And one more fact about this issue: when I hide all lights the model (which must be black) is grey like it's has extra light...

Sorry for my bad language, and I very need your help!

Answer 1

I solve the same issue by convert .obj file to .scn files in Xcode, and use this scenes as nodes. Editor -> Convert to SceneKit file format (.scn)

screenshot