可以在Substance中模拟真实的眼睛瞳孔效果，自定义控制各种纹理，sbsar格式，包含官方视频教程

This tool will allow you to generate infinity of eye variations, as everything it’s procedurally made. It’s as simple as clicking the Randomize button and export the textures when you like the final result :)

• PEG_Generic -> SBSAR
• PEG_Unreal -> SBSAR
• PEG_Presets -> Presets (from the images above) that can be loaded in substance player, designer, Unreal Engine 4 but not in painter :(
• Substance painter scene, Logos for the tool, explanation video of how to load it into your shelf and set up the scene.
• Eye mesh that I used to do my renders (I recommend to create your own using your project standards and unwrap your UV’s into the generated texture)