Scriptable Render Pipeline
https://docs.unity3d.com/Manual/ScriptableRenderPipeline.html
Unity轻量级渲染管线LWRP源码及案例解析
https://connect.unity.com/p/unityqing-liang-ji-xuan-ran-guan-xian-lwrpyuan-ma-ji-an-li-jie-xi-shang
http://www.360doc.com/content/20/0312/15/22877383_898670473.shtml