Cant get transparency to work

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Cant Get Transparency To Work

Cant get transparency to work

Created by Amante
11 Months Ago
July 9, 2018 @ 10:23 pm

Hi Tobias and all,

So I used Ae to create my own animated effect by using masks and time loops of three turtle shells to be rotating around me in another video. That worked fine. But when i try to apply that effect to my self in the other video connected to a motion tracker it still has the black background instead of it being transparent and only showing the turtle shells. Can ya'll help? =)

havardhv
11 Months Ago
July 9, 2018 @ 10:41 pm

Could you share the clip (and maybe a screen-shot of the AE project too)?

Amante
11 Months Ago
July 9, 2018 @ 15:36 am

Yes heres as far as i get, i feathered the turtle shells mask and its somewhat transparent on edges but not all of it.
Oh wait how do I attach an img in this forum? the IMG button wants me to enter url.... ?

havardhv
11 Months Ago
July 9, 2018 @ 16:27 am

Not sure, I just send a google disk link.

11 Months Ago
July 9, 2018 @ 16:34 am

You can upload the image anywhere that you want (even your Google Drive, Dropbox, Facebook, etc) and then paste a link to the image into the IMG tag

There is (at least for the time being) no way to upload files to this website - not sure I'd enable that though as it opens the floodgates to all things on the internet.

As for your problem, do you have a background in the comp with the turtles? E.g. if you enable the 'transparency grid' at the bottom of your preview window, do you see the grid to ensure it's on a transparent background?

Amante
11 Months Ago
July 10, 2018 @ 16:01 am

Ive spent an hour now trying to find out where to copy a link from google drive so you can see what im talking about. still trying

Amante
11 Months Ago
July 10, 2018 @ 16:03 am

got it now, check it out. i feathered it and so its somewhat transparent but if i feather 100% the whole thing disapears. The transparency is on the turtle shels video because of the way i created it. Still scratching my head.

ty

Amante
11 Months Ago
July 10, 2018 @ 16:06 am

And here is the turtle shell layer itself.

Amante
11 Months Ago
July 10, 2018 @ 16:45 am

Please tell me those images work for you.....

havardhv
11 Months Ago
July 11, 2018 @ 3:56 pm

Seems to me like you need to render out the turtle-shell-clip out with an Alpha channel before you try to put it in the video. If you didn't create the turtle shells yourself you might have to do some rotoscoping.

Amante
11 Months Ago
July 11, 2018 @ 11:09 pm

cool ty ill try that and get back to you.

Amante
11 Months Ago
July 11, 2018 @ 13:12 am

I re-rendered with alpha channel (rgb-alpha) and it gives me the same thing. I did use filmora to loop the turtle shell effect because i dont know how to loop in after effects. went back to an old save of the tutle shel effect to remake it with transparency but when i go to render it has 7 videos for render qur instead of just the one composition. aaahhh. lol

11 Months Ago
July 11, 2018 @ 15:12 am

Hey @Amante, have you figured it out yet?

I have never used Filmora, but it could be that it's not respecting your alpha channel, especially if you re-export the video to add the loop.

If you want to learn how to loop a video in After Effects, it's actually pretty easy and I have a tutorial for that here:

The composition in After Effects looks correct with transparency. As long as you export it with RGBA then that should work. Unless Filmora strips the alpha channel back out.

Also, I fixed up your image link. You were using the link to the Google Drive website, not the actual image. Therefore it wasn't showing inline but appeared as a broken link.

Amante
11 Months Ago
July 12, 2018 @ 11:49 pm

Ok....
Watching video helped a bit, but my situation isnt that simple. i have 3 footage, masked, to make the effect i want. to keep it simple id need to render the three masked footage into one video and then reimport as a comp and then loop and reverse time to make the effect longer. Now im stuck because i cant render into an avi because when i try this is what i get.

If i could render i forsee me getting this done. do you know what im doing wrong with the render?

Amante
11 Months Ago
July 12, 2018 @ 12:16 am

K im starting to get the looping. but....(omfg lol)
any idea why when i reverse the 3shell 2 layer the shell turns green?

also i apologize for having such a hard time with this. Thanks for being patient. =|

11 Months Ago
July 12, 2018 @ 15:11 am

Let's take this a step back.

You have a composition set up with 3 turtle shells. You have a transparent background. That looks good to me.
Now simply insert that composition into a new composition as a layer (Pre-Comp). You can then apply the Time Remapping effect to that layer (your 3 turtle shells) as a whole. There is no need to export and re-import.

Once you have adjusted the duration / timing / reversed your turtle shell layer that contains the 3 shells, you can export your video. I would recommend using something like the QuickTime Animation format with RGB+A as the export channels. That clip should then work fine (with transparency) in other video editing tools.

If you don't mind me saying, it does sound like this is one of your earlier ventures into Adobe After Effects. I have a complete beginner tutorial series right here that I can recommend you watch end-to-end: Adobe After Effects Beginner Tutorial Series.

This should give you enough grounding in After Effects to achieve what you want If after all that you're still stuck, do let me know!

PS: When you use your Google drive links for images, you need to right click on the image and use 'Copy Image Address' - otherwise you are just embedding a link to the Google drive website. And that will not work as an image.

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