Hi. I found that Camera Stacking will be deprecated for LWRP (https://docs.google.com/document/d/1GDePoHGMngJ-S0Da0Fi0Ky8jPxYkQD5AkVFnoxlknUY/edit), so I want to know how to implement same functionality. Specifically, I used secondary camera which is dedicated to render UI (with Screen Space - Camera Canvas). Then render some 3D effect (particle system and so on) to top of UI by placing it to in front of the UI canvas. How to implement these effect with incoming LWRP and Unity 2019.1? Thanks.