Apple Motion export alpha channel problem

Question

Apple Motion export alpha channel problem

Hello, I expose the problem I detected MOTION v. 5.2.3 (Yosemite 10.10.5) if I create a composition with scale effect and export with alpha channel

(Apple ProRes 4444 - Color + alpha, prmultiply apha)

I have a problem, or that the exported video does not contain the alpha channel. compositing as in image:

but if the elements of the animated composition with stairs do not go out of the canvas, the alpha channel is exported, see the picture attached:

before this problem did not exist and are years that I work with MOTION, how can I fix this? how can I fix it? thanks for all reply.

Final Cut Pro X, Mac OS X (10.6.8)

Posted on Jun 9, 2016 3:26 AM

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Answer 1

James Cude

Level 4

1,587 points

Jun 9, 2016 1:32 PM in response to Community User

I'm not seeing this. Are you able to zip and upload your project somewhere for us to check it out?

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Answer 2

fox_m

Level 6

13,250 points

Jun 9, 2016 8:20 PM in response to Community User

Select the Project layer, then select the Properties tab of the inspector and then look at the Background. Is it something other than Transparent??

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Answer 3

Jun 10, 2016 1:37 AM in response to fox_m

Hi, Obviously, it is clear, if I have to work with material that'll use alpha, layer project is set ti TRANSPARENT

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Answer 4

Jun 10, 2016 2:05 AM in response to James Cude

I created a demo project, a group contains items for export with alpha channel, another group contains the same elements but scaled over canvas and does not export the alpha channel, inside the zip file is a demonstration video editing.

Download attach file from link, thanks

https://drive.google.com/open?id=0B-Omxst3_CRgLWFHdWRkc3BkdUE

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Answer 5

fox_m

Level 6

13,250 points

Jun 10, 2016 9:47 AM in response to Community User

The setting for the project export was ProRes LT. Switching the Export setting to ProRes 4444 and exporting worked.

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Answer 6

Jun 10, 2016 12:06 PM in response to fox_m

Sorry my export setting is Apple ProRes 4444 NOT APPLE PRORES LT...

The group named EXPORT ALPHA WORK PERFECT with graphics that do not go out of the canvas....

Now hide grouo EXPORT ALPHA and able NO_EXPORT ALPHA, and try to export with Apple ProRes 4444....alpha DON'T WORK if element graphics in canvas are big or over canvas, see image:

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Answer 7

Jun 10, 2016 1:41 PM in response to Community User

This is working for me. Are you sure you're on the latest version of Motion? Verify it by launching Motion and under the Motion menu, selecting About Motion. It should be 5.2.3.

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Answer 8

fox_m

Level 6

13,250 points

Jun 10, 2016 2:13 PM in response to Community User

When you save a project, the export settings are also saved. When I opened your project that you had posted and exported, the setting was ProRes 422 LT. I'm not saying you set that on purpose, sometimes Motion can reset things to a default if it starts losing stability, which it might since Motion 5.2.3 should probably be run in OSX 10.11.2 or later.

Both sections worked equally as well as PR4444 exports:

[both versions transformed to fit as shown in FCPX]

Just for curiosity's sake: why are you exporting these as ProRes anything? Simply publishing this as a Final Cut Pro Generator would save you tons of memory, the text would be editable in FCPX without having to go back into Motion, you could publish a lot of the parameters to make it customizable in FCPX, like the circle colors, the background circle *shape*! (curvature parameter - 0 is a square, 100% is a circle) and color. There's all kinds of variation you could put into this project, be able to make the changes "on the fly" in FCPX and not have to deal with a huge video file (11.9 MB vs 55KB) or opening Motion again.

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