This is very important for working with custom passes in both HDRP and URP.
When Unity collects/culls/etc all renderers into the cullResults, it collects the LightMode tags as part of the cullResults.
By specifying ShaderTagId(s) and setting up a DrawingSettings struct, the render pass will filter only the renderers with shaders that use those tags (this is how all rendering in URP and HDRP works), when calling context.DrawRenderers
Is it possible to define a custom LightMode tag in ShaderGraph, and if not, why not? I would really like to know why it isn’t supported.
I can see that the LightMode tag is written using the PassDescriptor struct, so I don’t see why it would be challenging to optionally expose an override for just the Forward descriptor (as a control on the master node).
Is there a Unity version where this feature is likely to be added?