I was on unity 2019 and now upgraded my project to 2021.
Now when I rebuild my library there is a big folder on library/package cache/com.unity.burst@1.8.2
however to my knowledge I don’t use burst in my project nor do I have it on the package manager. However the presence of this folder leads me to believe that burst comes by default in unity 2021. Do I lose anything by somehow unistalling burst from my project? Does it help during build times? Can I even remove it?
The folder is 600mb, not horrible but I could do without it if possible, since Im not using it anyway.
To my knowledge burst is something used for jobs/ecs? Which I dont use. Well, in the end I don’t really know what “com.unity.burst@1.8.2”.
If you open the Package Manager (Window > Package Manager) and select In Project, you should see Burst listed in there. If you click on it, the details pane will tell you which package has it as a dependency. It’s not installed by default when upgrading to 2021 from a previous version, AFAIK.
It’s possible that newer versions of some packages you use now depend on Burst to produce highly-optimized runtime code. Perhaps some of those packages were made compatible with jobs or changed to use them, even if you yourself do not directly use it.
Here are the packages I have installed. Burst only shows when I switch to unity registry, it seems its installed as dependency of something. Maybe URP? Dont know enough about it
Oh, you may need to tick a checkbox named “Show Dependencies” in the Project Settings (Package Manager category). That will cause the package details (the right-hand view) to display a new section named “Dependencies” where you can see dependency information. (Disabling that “Show Dependencies” option is not very good because it just hides useful, relevant information behind a checkbox that’s far removed from the affected UI. I recommend leaving it on. It was removed in 2022.2, where it is now “always on”.)
