unity_builtin_extra--see contents and sizes

This question has been guessed about in a few places, but I'm hopeful Unity can provide a definitive answer. It's destroying our WebGL build sizes.

Is there any way to find out what's making this asset so large? Right now I'm only finding the uncompressed total size and I'm desperate for some way to find individual contents and sizes so I can trim and reduce them.

Thanks!

 

Hey Unity, it would really be super helpful to get this pinned down. We have a substantial network of Asset Bundles and each of them is pulling in some mystical pile of "unity_builtin_extra". If we knew what those were, we could just put THOSE things into a bundle and not keep duplicating them. Can we please get a tiny bit of commentary? Thanks!

 

Please? Pretty please? A little info as to what keeps adding all this bloat to our asset bundles?

 

It would really shave some extra weight off most of our asset bundles.

 

I am looking for this too.

 

Bump?

 

It seems to me so far that this is shaders or shader variants? Would be great to get some insight from the folks that know.

 

I would also like to know