Objects in masks outside of Rect don't render when Rect expands to encompass them

Hey all, I think I've just found a bug with Unity 4.6 b20, as some functionality I had before has now stopped working.

It's to do with masks and content outside their original rect, I have masks scrolling their width when clicked to reveal more information outside of their rect. But not when this happens the said information doesn't render anymore.

I've submitted a bug report, but I thought I'd post it here for anyone else to clarify.

I've attached the example project for all to see.

EDIT: the case number is 636696

 

Yep this is the same issue I had with scroll rects. The content resizer on the child objects isn't being triggered at runtime, though it looks like it is working when viewed in the scene editor.

I found that you can force the scroll rect to trigger the child content sizer by adding a content sizer to the scroll rect. So somewhere along the line the fix in beta 19 to force these to report their sizes correctly has vanished.

 

Thanks for the explanation, it's a good idea optimisation wise, then you would be able to use masks to hide entire screens without performance cost.