Home - johnsietsma/ExtendingLWRP GitHub Wiki
Disclaimer: I work for Unity but I'm not the team working on the LWRP, information here may be inaccurate or not best practice. These features are in preview and changing rapidly, information here may be out of date.
To get a great overview of SRP and LWRP have a look at this SRP 101 document.
For official documentation please look at the LWRP Package API documentation and the SRP GitHub Wiki page on LWRP.
Another great resource is Felipe Lira's SIGGRAPH Workshop, Customizing a Production Pipeline, Slides and Repo.
The LWRP 4.0.1 Forum Announcement also has some great information.
A lot of the techniques I show here could probably be used on the HDRP as well, I just haven't investigated or tested them out.