问题
I am trying to correctly show the eyelashes of a model. I am using alpha map for the eyelashes but I have no idea how to correctly set it up in Xcode.
See image below.
(the same alpha map is used in Blender and when set transparency all is good).
thanks
回答1:
Transparency mapping in iOS is different to anything I've ever seen in all my years of 3D/CAD.
You must use a .png file with transparent areas transparent, and opaque areas as black.
回答2:
It's hard to tell by just a screenshot of the settings but I guess that the problem is the UV Channel which probably should be 0 rather than 1 (unless your 3D model really has multiple channels).
来源：https://stackoverflow.com/questions/43355942/alpha-map-in-scenekit