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Upside-down post processing effect on mobile.

As the title suggests, I am having issues with post-processing effects on mobile: the outlines, when I launch the game on mobile, flip vertically and create some glitchy lines. However, this is not the case when the game is played on PC. Here is a comparison: (The game is still in development, there's a lot of stuff missing.)

What it looks like on PC (I obviously added that text in an image editor): alt text

What it looks like on mobile: alt text

If you want to download it (there's an unused cel shader): http://www.mediafire.com/file/mj2ibi16mxoyc59/Island%20of%20Minigames.zip

Product Version: UE 4.20
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asked Sep 08 '18 at 12:48 PM in Packaging & Deployment

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avatar image My Boi Rocco Sep 14 '18 at 05:00 AM

I'm having same issue on android. Post process material with scene depth and pixel depth is upside down only on mobile device. Looks fine in mobile preview. Any answers?

avatar image vle07 Nov 06 '18 at 01:56 AM

I submitted a bug report for this a while back: https://issues.unrealengine.com/issue/UE-63442

It should be fixed in 4.21

avatar image CannonBall3000 Dec 25 '18 at 07:45 PM

Alright, I'll check once I've got back to that project.

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Hey, I found the issue.. I was using a standard Scene Depth node which has the inverted issue on mobile. So I swapped it out for a Scene Texture: Scene Depth which works fine. I'm not sure the difference but hopefully it works for you too :) alt text

capture.png (97.0 kB)
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answered Sep 14 '18 at 02:44 PM

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My Boi Rocco
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avatar image CannonBall3000 Sep 14 '18 at 07:33 PM

I tried it, but it comes up with an error message. Do u have a fix? :(

avatar image CannonBall3000 Sep 14 '18 at 07:43 PM

And no, it doesn't work.

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