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Emissive not working on Android

I have built my project to Windows 64-bit and to Android ASTC.

On Windows, the emissive effect where things seem to glow brightly, with a colored bloom around it, is working and looks the way I want it to.

However, on the Android build of my project, the emissive materials either don't show at all (look completely black) or they don't appear to have that bright white center. I'm not sure if they're showing bloom either.

I changed my Target Hardware settings to Mobile Maximum to make sure emissive bloom was enabled. But this didn't make any difference.

What else do I need to change, or is it just not supported on the hardware (LG V30 ThinQ) or shader model I chose?

Here's a video of the Windows version, which it should look like: https://drive.google.com/open?id=1qfeiUm7BD1S4Kihn96KblzitN9yssric

And here's a screen recording of the Android build: https://drive.google.com/open?id=1X8rBUY4km_uRXHtvzpwpfuyt9YL36XTQ

Here are two examples of the materials I'm using that don't look the way I want on mobile:

The tank engine glow: alt text

And the glowing bullet: alt text

Product Version: UE 4.20
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asked Oct 02 '18 at 02:17 AM in Rendering

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avatar image Manoel.Neto Oct 02 '18 at 03:34 PM

Is mobile HDR enabled in the project settings?

avatar image mightyenigma Oct 02 '18 at 05:15 PM

Yes. Sorry I forgot to mention that. I enabled it and restarted the engine before re-building to Android, in hopes that would fix the problem. But it did not.

avatar image mightyenigma Oct 02 '18 at 05:21 PM

Also there are no shadows in Mobile, from the Directional Light in each arena. Are my lightmaps too big or something? Or maybe it's because most of the walls and floors are dynamic/moveable and maybe mobile can't do that?

I am using Forward Rendering.

avatar image Manoel.Neto Oct 02 '18 at 05:39 PM

Are you using mobile preview in the editor? How does it look there?

avatar image mightyenigma Oct 02 '18 at 05:43 PM

No just building to Android to test. Mobile Preview might be a faster way to iterate though. I'll try it and see what it looks like.

avatar image mightyenigma Oct 02 '18 at 08:32 PM

Okay I tried Mobile Preview PIE (ES2) and it looks like this: https://drive.google.com/open?id=1sTq_o439wZxkE39ei33SVlaJtkVTcCXH

It's slightly better than on the actual mobile: The engine lights up (just incorrectly), and it does look like there's some kind of bloom around the glowing objects but again it's not correct like in the Windows version. And there's still no shadows cast by dynamic objects but maybe I set it that way somewhere to try to get it to work on a weaker phone, I don't remember.

avatar image mightyenigma Oct 02 '18 at 09:53 PM

If I can at least get the phone to look like the mobile preview I think I can be happy with that.

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Hello I had a similar issue on mobile with de emissive. On mobile, i didn t see emissive effect. on Pc il was OK.

I discovered that for mobile, i must multiply the value for emissive at least by 100. After that, my emissive are like on PC.

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answered Nov 08 '18 at 01:22 PM

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