整理自 https://blog.youkuaiyun.com/qq_21153225/article/details/80257072
https://blog.youkuaiyun.com/qq_16756235/article/details/76616408
https://blog.youkuaiyun.com/qq_16756235/article/details/78303695
1 在新建材质球中如下设置
2 设置材质基础属性 Allow Custom Depth Writes 打钩后 Opacity Mask Clip Value 可点亮 ,Lighting Mode 根据情况设置可默认