UI Mask & Masking Layer Limit

Given the following scene where the Green, Blue and White labels have a masking component. When the White and Blue masking components are enabled, the text is masked as expected. When masking is enabled on the Green label (making it 3 layers), the text disappears. Is this by design and a limitation of the system or is this an issue?

 

We're running into the same issue where we have a super complex UI with sub windows and such. The masking limit of 3 is throwing monkey wrenches for the sub panels.

Is there a way we specify the mask level limit ourselves (I'm sure there's a limit for a reason). We could probably get away with ~5.

Sample of the panels we're doing (not the most complex though - those aren't masking right):

 

We're having a hard time building any moderately complex panel with the mask limit. This panel is a Window (content mask), scrolling list (content mask), then the dropdown has a scrolling list (content mask) which is failing (showing white box):

 

Is this a "feature" or a "bug"? I can put in a bug report, but it's definitely hardwired into the engine. This is unfortunately preventing us from fully converting our current tools from using scaleform to unity (and we *REALLY* want to break free from scaleform! haha). This is literally the last thing we need to have the tools converted.

I will say at points, we probably have 300+ UI elements going and there's no noticeable slowdown.

 

Can we get a confirmation that 3 layers of masking is the maximum supported or if this is an issue that should be reported?

 

Bug reported (Case 654689). Includes sample project showing masked prefab stack:



The children of masks start failing at the 3rd mask level, so we only really have 2 valid levels of masking. Seems crazy shallow.

 

It fails past 3 right now.

Could you please explain how the Stencil ID is computed?

 

When going 3 deep, I have to set the Stencil ID to 11 right now. So maybe something is up.

1 Layer = Stencil ID 1
2 Layer = 3
3 Layer = 11

That is when I set the Stencil ID manually in the shader.

 

woot! glad you guys are on it (and that it is a bug)! can't wait to de-flatten our panels! =D

 

^

Thanks again!

 

Can't seem to find Case 654689 - may have been killed as it looks like a duplicate of an earlier - http://issuetracker.unity3d.com/issues/ui-nested-masks-behave-incorrectly

Tagging post w/ this one. Everyone else who's waiting on this, if you could vote on it, maybe that would expedite a little.

 

Hey, I got this bug again at 5.1.2p2. Any solution?

 

Well, seems like its my custom shader's problem. I will try to compare it with the sprites-default shader.