Unity provides two prebuilt Scriptable Render Pipelines (SRPs): the High Definition Render Pipeline (HDRP), and the Universal Render Pipeline (URP). HDRP and URP offer extensive customization options. However, if you want even more control over your rendering pipeline, you can create your own custom SRP.
These instructions show you how to create a custom SRP using the SRP Core package. SRP Core is a package made by Unity that contains a reusable code to help you make your own SRP, including boilerplate code for working with platform-specific graphics APIs, utility functions for common rendering operations, and the shader library that URP and HDRP use. For more information on SRP Core, see the SRP Core package documentation.
You can now debug and modify the scripts in your copy of the SRP source code, and see the results of your changes in your Unity Project.
The Universal Render Pipeline (URP) and the High Definition Render Pipeline (HDRP) offer extensive customization options to help you achieve the graphics and performance you need. However, if you want even more control, you can create a custom version of one of these render pipelines, and modify the source code.
Follow steps 1–3 in the section above, Creating a new Project and installing the packages needed for a custom SRP. When you reach step 4, install the following packages in the following order: