some changes

[pema99]

Retarget this to master. Dev is kill.

[pema99]

This pr is really difficult to grok because you are doing so many different things and your commit messages aren't very indicate of the changes.

As far as I can tell, you are doing at least all of the following:

• Reformatting, refactoring, and mass renaming
• Removing dead code
• Warning about main scene camera
• Change behavior of link all button
• Swap out readback texture for one with a proper format
• Implementing async readback

and probably more I didn't find

[pema99]

IMO mixing the 2 first points with the rest is a cardinal sin, since it makes the diff way more cursed than it has to be. I don't want to be a dick here, but could you please at least split this into:

refactoring (rename, dead code, reformat, style changes, etc.), bugfixes/usability (warnings, small behavior changes), readback changes (async readback + improves to readback UI, new texture format)

You could cherry pick stuff over, but looking at the history added in this PR, it's not very useful anyways, so a simple way to do this splitting is to just soft reset to branch start (git reset --soft <commit_before_first>) and then re-commit the local changes relevant to each of the orthogonal goals

I can help you do this if you want