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UMG Image with Animated Materials not updated on Mobile

  1. Create material with some animation using Time and Panner (unlit)

  2. Create widget and add this material

  3. It will animate in PC but not on Mobile

Another thing with Material Parameters and UMG: Now go to the material and change the Time to Parameter and try to change it from Widget. It won't be updated when material is in UMG, but if you add material to world parameter will be updating as expected.

I would be grateful for answers here: 1. Can we use animated materials (with Time, Sin and modified UV) in UMG on Mobile? 2. Can we use material instances parameters in UMG? (we can see that they aren't working on PC and Mobile)

Product Version: UE 4.7
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asked May 28 '15 at 04:14 PM in Bug Reports

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intoxicat3
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avatar image Rudy Q ♦♦ STAFF May 28 '15 at 06:29 PM

Hello intoxicat3,

I have a few questions for you that will help narrow down what issue it is that you are experiencing.

Material not working on mobile

  1. Can you reproduce this in a clean project?

  2. If so, could you provide a more detailed list of steps in order to reproduce this issue on our end?

  3. Could you provide screen shots of your material so that I can be sure to recreate the issue?\

  4. What is the exact the device you are testing on (Example: iphone5 s)?

  5. What is the exact OS version on the device (iOS 8.0.1)?

  6. Are you launching on or packaging and installing?

Second issue:

This is a known issue (UE-5975) that has been sent to the developers for further consideration. However, I will be sure to bump up the community interest for this issue.

avatar image intoxicat3 May 29 '15 at 08:37 AM
  1. Yes I can

  2. Repro below,

  3. iPad Air, iPad Mini - basically you can reproduce this on Mobile Preview as well,

  4. Tried both,

Repro: - Create material (attached), - Create widget and assign material to image, - Run on PC - it will animate, - Run on Mobile Preview - it won't animate, (the same on device)

Thanks for info about parameters! Hopefully you guys will be able to deliver this functionality it would be handy. alt text

pannerissue.png (105.4 kB)
avatar image intoxicat3 May 29 '15 at 10:44 AM

Another thing is that Custom UVs won't work in material when using in UMG.

avatar image Rudy Q ♦♦ STAFF May 29 '15 at 02:26 PM

Hello intoxicat3,

I was unable to reproduce this issue on our end with the information provided. I recreated the material above and tested it in the engine as well as on the device. In both cases the material panned as expected. Could you provide the clean project that was used to recreate this issue so that I can take a closer look? I have provided the steps that I took to recreate this on our end. If you see any differences that could change the outcome please let me know.

Steps taken:

  1. Created a new widget blueprint

  2. Added an image to widget blueprint

  3. Created the material

  4. Add the material to the image widget

  5. Added the widget blueprint to the viewport via level blueprint

  6. Launched on to the device

Material used:

alt text

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1 answer: sort voted first

Hello intoxicat3,

We have not heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you are still experiencing the issue you reported, please respond to this message with additional information and we will offer further assistance.

Thank you.

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answered Jun 02 '15 at 02:47 PM

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Rudy Q ♦♦ STAFF
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