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Render Debug Overlay #22412

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@aevyrie
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@aevyrie aevyrie commented Jan 7, 2026 •
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Objective

  • Make it easy to peek at the depth/normals/motion/hi-z

Solution

  • Add a small crate and a plugin behind a flag

Testing

  • Robust against components, deferred, etc

Showcase

Screen.Recording.2026-01-07.at.8.41.08.PM.mp4

mockersf
mockersf reviewed Jan 7, 2026
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github-actions bot commented Jan 7, 2026

You added a new feature but didn't update the readme. Please run cargo run -p build-templated-pages -- update features to update it, and commit the file change.

Jondolf
Jondolf reviewed Jan 7, 2026
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Jondolf
Jondolf reviewed Jan 7, 2026
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IceSentry
IceSentry reviewed Jan 7, 2026
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aevyrie commented Jan 7, 2026

This generally needs a cleanup pass, I was mostly interested if others thought this was a sensible approach for the shader and bindings. 🙂

@alice-i-cecile alice-i-cecile added C-Feature A new feature, making something new possible A-Rendering Drawing game state to the screen M-Release-Note Work that should be called out in the blog due to impact A-Dev-Tools Tools used to debug Bevy applications. S-Needs-Review Needs reviewer attention (from anyone!) to move forward labels Jan 7, 2026
@alice-i-cecile alice-i-cecile added S-Waiting-on-Author The author needs to make changes or address concerns before this can be merged and removed S-Needs-Review Needs reviewer attention (from anyone!) to move forward labels Jan 7, 2026
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JMS55 commented Jan 8, 2026

I've wanted this for a while. I'll try to get to a review this weekend.

IceSentry
IceSentry reviewed Jan 9, 2026
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IceSentry approved these changes Jan 9, 2026
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It would be cool if there was a way to render that to an intermediate texture so we could throw it in a UI node and have a bunch of those debug views in separate textures. Definitely more of a long term idea, doesn't have to be in this PR.

Other than the comment that looks copied LGTM

@alice-i-cecile alice-i-cecile added S-Needs-Review Needs reviewer attention (from anyone!) to move forward and removed S-Waiting-on-Author The author needs to make changes or address concerns before this can be merged labels Jan 12, 2026
@alice-i-cecile alice-i-cecile added this to the 0.19 milestone Jan 12, 2026
atlv24
atlv24 approved these changes Jan 13, 2026
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nice job

@atlv24 atlv24 added S-Ready-For-Final-Review This PR has been approved by the community. It's ready for a maintainer to consider merging it and removed S-Needs-Review Needs reviewer attention (from anyone!) to move forward labels Jan 13, 2026
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mockersf commented Jan 13, 2026

I would prefer this to be in the bevy_dev_tools crate, is there a reason to do a new one?

@atlv24 atlv24 added S-Waiting-on-Author The author needs to make changes or address concerns before this can be merged and removed S-Ready-For-Final-Review This PR has been approved by the community. It's ready for a maintainer to consider merging it labels Jan 13, 2026
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atlv24 commented Jan 13, 2026

Agree

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@mockersf mockersf mockersf left review comments

+3 more reviewers

@Jondolf Jondolf Jondolf left review comments

@IceSentry IceSentry IceSentry approved these changes

@atlv24 atlv24 atlv24 approved these changes

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A-Dev-Tools Tools used to debug Bevy applications. A-Rendering Drawing game state to the screen C-Feature A new feature, making something new possible M-Release-Note Work that should be called out in the blog due to impact S-Waiting-on-Author The author needs to make changes or address concerns before this can be merged

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Rendering
Status: No status

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0.19

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7 participants

@aevyrie @JMS55 @mockersf @atlv24 @IceSentry @Jondolf @alice-i-cecile