对纹理进行Alpha通道分离的好处
https://blog.csdn.net/u011926026/article/details/53982180
拆分贴图的Alpha通道 –对抗ETC1的原罪
https://blog.csdn.net/u010153703/article/details/51491116
https://blog.csdn.net/e295166319/article/details/52622811
各种移动GPU压缩纹理的使用方法
https://blog.csdn.net/wanglang3081/article/details/8869589
实现图片ETC+Alpha分离
https://blog.csdn.net/smallrainf/article/details/51872545
unity游戏优化之ETC压缩和 Alpha通道处理
https://blog.csdn.net/qiaoquan3/article/details/53300482
【改进版】Unity工程里图片的RGB和Alpha通道的分离
https://blog.csdn.net/u010153703/article/details/45502895
Unity一键图集生成工具,附源码 (基于NGUI和TexturePacker)
https://blog.uwa4d.com/archives/NGUI_SplitChannels.html
Unity Gamma校正
https://gameinstitute.qq.com/community/detail/125684