Let’s dive into using Shader Graph for HDRP/URP. As mentioned, you need both so be sure to install either URP or HDRP as your pipeline for Unity. If you haven’t installed a pipeline yet and install URP, you may get shader graph already installed into your project.
To start using shader graph, go into project, create, shader. Be sure to choose the shaders on the bottom. The top ones are code based shaders. For now, choose PBR.
After naming your shader, choose Open Shader Editor. Hold Shift-Space to maximize your shader window view to move in and out.
If you get this warning, it means you are still using the standard render pipeline vs URP/HDRP. Be sure to add that in the project and then add it into your project settings.
Now you are ready to create your first shader.