Final Pixel Luminance - Debug Mode

Unity Engine
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1

Is there a way to get HDRP to show the Luminance value of the final pixel? I’ve found options for showing the raw luminance (before tonemapping). But I’m looking for the post tone-mapping value. So that our artists can quickly check values on the image, etc.

Effectively, I’d like to replicate the process of taking a screenshot into Photoshop and:

  1. Converting to LAB color
  2. Running Desaturate.

Before:

image
image1537×650 98.6 KB

After:

image
image1535×645 73.8 KB

2

Answered my own question – looks like the HDRP manual comes with a similar effect in the tutorial for post processing. I’ve borrowed that. Would be nice to have in the rendering debugger though!

https://docs.unity3d.com/Packages/com.unity.render-pipelines.high-definition@14.0/manual/Custom-Post-Process.html#dynamic-resolution-and-dlss-support