Anti-aliasing - UE4 4.7.5, iOS HOW?

3DA · April 12, 2015, 3:09am

Hi All,
I moved my project from 4.6.1 to 4.7.5. /Because 4.6.1 has the problem with App Loader “No Architecture…”/

Now Antialiasing not working on the device, only in Editor and Mobile Preview are OK on Device AA Off

I found these places with AA settings.

Postprocess Volume / Misc = AA Method
Project Setting / Default postprocess Setting = Anti-aliasing Method
First Person Camera / Misc = AA Method
Config / DefaultEngine.ini = r.DefaultFeature.AntiAliasing=0

What is the right combination for iOS? I tried almost everything. Nothing

/UE4 4.6.1,PC, Win 8.1/ My functional combination for AA Preview/Device was:

Postprocess Volume / Misc = AA Method= On, TemporalAA
Project Setting / Default postprocess Setting = Off
First Person Camera / Misc = Off
Config / DefaultEngine.ini = r.DefaultFeature.AntiAliasing=0

Thanks

anonymous_user_3965d48c · April 13, 2015, 8:14pm

“r.DefaultFeature.AntiAliasing=0”
I’ve never touched this setting, but 0 is always “off” and 1 is always “on” for these types of settings.

Just a thought: Check your device profiles. You can do this in the editor through one of the windows, or you can do it through the BaseDeviceProfiles.ini found in your engine config folder. There you can set certain settings that change depending on what device you deploy to. So your iPhone, Android, and PC can have scaled rendering settings without you changing it one by one at build time. The default AA settings for iOS might have been changed by Epic.

anonymous_user_e1e14d82 · April 13, 2015, 9:09pm

AFAIK none of the post-processing AA options are available on iOS. There is a mobile AA flag, but it only works if you run your game on devices which support Metal.

3DA · April 14, 2015, 10:53am

Hi StephaBon & pedro_clericuzzi, thank you for your time.

I tried to change “r.DefaultFeature.AntiAliasing=0 to 1” but AA still does not work on the device:( / in DefaultDeviceProfiles.ini,DefaultEngine.ini in project folder, and various combinations-in editor… /
I tried clear New project, without starter kit, same result on deivice, no AA. But in iOS Preview is ok.

Testet on : UE4 4.7.5, PC, target iOS, iPhone- 4,4s,5s, iPad- 2,3,air same result at all devices.

PS: For Epic and Dev - Upload Error from Application Loader “No 64 support…No architecture find…” is SOLVED with 4.7.5 , only report “API is too large…” upload ready for review:)

anonymous_user_d7940737 · April 15, 2015, 6:06pm

Hi 3DA,

For best results for your iOS projects, here is thelimitations documentation for iOS development. it should help provide guidance on what will and what won’t work well in iOS and mobile in general.

Hope this helps!

3DA · April 17, 2015, 2:03pm

Hi Wittlief,
Thanks for the answer, but still I have trouble with that./AA/ I do not see where I’m making a mistake. It works for some of you?
Thanks

Nawrot · April 20, 2015, 11:43am

I have same trouble with inis for iOs. On android everything looks perfect, on ios its just ****. Need some more digging into all that.

3DA · April 21, 2015, 10:16am

Thank you Nawrot for tried AA.

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3DA · June 11, 2015, 2:35pm

UE4 4.8, AntiAliasing, still does not work on iOS

rckt26 · June 11, 2015, 4:53pm

Adding the r.MobileMSAA value for each device works for me. Not sure but I think this may only work for metal.

3DA · June 12, 2015, 3:13pm

Hi rckt26, thank you, but I still can not activate AA /tested iP5s, iPad Air/
Nowhere I have not found guide for iOS-UE4-AA
Slowly I give up, within 3 years I did not grab the cycle where it would work. / when publish date /

rranon · July 14, 2015, 12:36pm

Hi, please see this question on UE4 AnswerHub, hope it helps.

3DA · July 15, 2015, 10:12am

Hi rranon,
Thank you very much. But still I can not turn AA on . I’m totally tangled
Editor=OK
Device=no AA

clean scene/Project, no bloom, no special FX, only floor and box.

PC,UE4 4.8.1, 5S, iPad Air,

3DA · July 15, 2015, 2:50pm

Hi All,
Now I completely reinstalled UE4, then installed a new UE4 4.8.2.
I created a new project.
I created a new C:\Users\PC\Documents\Unreal Projects\MyProject\Config\DefaultDeviceProfiles.ini
I on device /5S,AIR/
And AA works :))))
Thanks to everyone, I do not know where I made a mistake before.

DefaultDeviceProfiles.ini

[iPadAir DeviceProfile]
+CVars=r.MobileContentScaleFactor=2
+CVars=r.MobileMSAA=2

[iPhone5S DeviceProfile]
+CVars=r.MobileContentScaleFactor=2
+CVars=r.MobileMSAA=2

rranon · July 15, 2015, 2:52pm

Do you notice any difference when setting r.MobileMSAA to 2 instead of 1?

Thanks

3DA · July 15, 2015, 3:28pm

Yes, big difference

+CVars=r.MobileMSAA=1 On the device looks like without AA /Sharp/

rranon · July 16, 2015, 10:56am

Funny, I did a test and I got the opposite behaviour: no AA with r.MobileMSAA=2, AA with r.MobileMSAA=1. This with UE 4.8.2.

I think you are mistaking full device resolution (r.MobileContentScaleFactor=2) for AA (the effect is similar if not better in the first case, at least in my tests). Anyway, if it looks good and frame rate is ok, why bother?

3DA · July 16, 2015, 1:44pm

Hmm??? I made a new test, still same result, iPad Air,5S, r.MobileMSAA=2 is AA on, r.MobileMSAA=1 is AA off.
(r.MobileContentScaleFactor=2) It was not mistake, I know about it. If you do not use the full resolution, you will have problems with Widget readability! Yes, it certainly will have an impact on frame rate /Terrain, complex scene …/.
it seems that every device has separate settings.
You testing AA on iP 6 ?

My last test:

rckt26 · July 16, 2015, 4:16pm

I’m not sure what the max is but I’ve actually been using r.MobileMSAA=4.

3DA · July 16, 2015, 4:47pm

You’re right,rckt26, r.MobileMSAA=4 looks much better then r.MobileMSAA=2
4 is max, 8 no AA. I not measure Frame rate.