Unity ui mask not working on google pixel device

Question

I am making a scrolling ui panel and apply mask to ScrollRect component, which should hides parts outside panel area. I am using unity version 5.4.2f2-GVR. Mask work correctly on pc when i deploy it on google pixel device its not working. Is this bug of unity version or something else....

Answer 1

I got around this issue by using RectMask2D Component instead of the regular Mask.

Answer 2

ScrollRect component has this weird behaviour when an image in its content has its material set to something other than none.

Unset the material to None and it should work.

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If every child of content already has no material, then it could be a bug.

Answer 3

If somebody else got this problem and Bahman_Aries solution is not enough, try this:

File > Build Settings > Player Settings>XR Settings (or Other settings if you are working in older versions of unity) > Daydream (click on the small arrow) > Depth Format.

And set that to 24-bit depth | 8-bit stencil.

This is cause you need a stencil buffer.