Data Unification

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Unified rendering means that we are not creating yet another solution, but refactoring the URP and HDRP backends, separating data and logic to allow you to have a completely unified authoring experience.
Lights, Cameras, Shaders and Effects will be authored once - that’s your
data.
When unifying we are taking the best of URP and HDRP.
And making them available to you in a unified way.
Some examples:
You will be able to author lighting either with Physical light units as you do in HDRP or with Luminance values like in URP
You will be able to customize rendering with Render Graph like in URP today
So we really are cherry picking the best tooling we’ve built the last few years, and it means that if you’re already used to SRP, you’ll be prepared for the next generation.