Can't upgrade to 0.14, impossible to render `AlphaMask3d` phase items without mesh about bevy

[kurtkuehnert]

I was trying to upgrade bevy terrain to Bevy 0.14 and I am facing the same issue. My pipeline uses a compute shader generated mesh, so my mesh asset ID is set to invalid in the Opaque3D phase item. This causes my items to not be drawn as well.

[djeedai]

@kurtkuehnert there's a discussion happening on Discord now (see here and below messages, and can walk your way up from replies too). I think we'll post a recommendation here once the various folks discussing have reached a consensus on the best approach. So far there's I think 4+ crates facing the same issue. It's also considered a 0.14 blocker, so should get traction.

[djeedai]

Confirming that Hanabi works again. Thanks for the fix!