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Vulkan Mobile - How to get rid of Aliasing

Hi Epic Games, I made an app for Vulkan and Cardboard on a Samsung S7 devices. It's working pretty well. But I got a big aliasing effect on mesh edges. And I can't get rid of it, even in UE Editor in High End Mobile preview [Vulkan] I got this effect ! Here is a capture of the scene on the UE Editor !
I tried, Temporal AA, MSAA and FXAA, does not change my problem (the texture AA is working well, so I know that I have the effect). I tried to change the scale factors, but without success.

I someone have any tips !

Have a nice day ! alt text

Product Version: UE 4.14
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asked Jan 27 '17 at 01:35 PM in Rendering

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Thomas OBVI
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avatar image Thomas OBVI Jan 27 '17 at 02:18 PM

It's maybe my screen resolution by the way, but I have no clue how to change it properly !

avatar image S-ed Jan 27 '17 at 02:38 PM

Resolution scale


avatar image Thomas OBVI Jan 27 '17 at 02:52 PM

Thanks but I'm already in Full Scalability Settings, I don't know if it's Vulkan which does this effect ! Because if I make a preview in standard SM5 Shaders, everything is okay !

avatar image Agaz5 Feb 07 '17 at 11:16 AM

I have the same problem. I've converted my Gear VR project to cardboard and it works fine but the aliasing is tremendous. I have tried all the different AA and I've tried to change the r.MobileContentScaleFactor and the r.MobileOnChipMSAA in device profiles and nothing has changed

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2 answers: sort voted first

With UE4.15 under Engine Rendering section in project settings you can now find mobile MSAA option. Enabling it I have fixed my cardboards aliasing problem.

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answered Feb 24 '17 at 10:53 AM

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avatar image Thomas OBVI Feb 24 '17 at 01:01 PM

Thanks for your answer. I tried it with 4.15 and yes it works fine, but finally we abandonned the cardboard Idea. Because it's a bit laggy and you become sick easilly compared to the Gear VR. (Even if the game have a good framerate you still have a kind of ghosting on the edge of the objects when you move your head (even in the cardboard demo by Google !)

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So, in the preview editor, when I enter r.MobileMSAA 4, the render look really nice, but on phone (Samsung Galaxy S7) the application crash !

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answered Jan 30 '17 at 01:22 PM

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Thomas OBVI
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