Creative Communities of the World Forums

The peer to peer support community for media production professionals.

Activity Forums Adobe After Effects Changing black background to transparent for lens flare effect

  • Changing black background to transparent for lens flare effect

    Posted by Sally Le page on December 21, 2012 at 12:06 am

    I realise this has been answered in other posts, but I am a complete newbie to After Effects (only 2nd time using it) and couldn’t understand the other answers!

    So I have After Effects 6, and I have many black solid layers, each with a lens flare effect, each set to Screen, whatever that means. Now, I’ve toggled the transparency grid, meaning I know that the solids are actually black, not transparent as I can’t see the checkerboard pattern through them.

    I want to make all the layers transparent so that I can just stick the lens flares over another clip in Premiere Pro. But I can’t work out how to do it!

    Like I say, I am a complete beginner, so I would be really grateful if you could mention under what menu I will find the various options.

    Many Thanks

    Sally 🙂

    Zack Culver replied 8 years, 2 months ago 4 Members · 7 Replies
  • 7 Replies
  • Vishesh Arora

    December 21, 2012 at 9:29 am

    Sally

    Use Knoll unmult to remove the black from your flare in just one click.

    Vishesh Arora
    3D and Motion Graphics Artist
    Films Rajendra

    Blog:
    https://digieffects.wordpress.com

    Demo Reel(3D):
    https://www.youtube.com/watch?v=lHPgIJU_BR8

  • Sally Le page

    December 21, 2012 at 10:52 am

    It seems Knoll Unmult only works for up to CS5 – do you know another extension that works for CS6 as a one click solution would be brilliant!
    Thanks
    Sally

  • Vishesh Arora

    December 21, 2012 at 10:59 am

    Sally

    I am using it with CS6. Give it a try.

    Vishesh Arora
    3D and Motion Graphics Artist
    Films Rajendra

    Blog:
    https://digieffects.wordpress.com

    Demo Reel(3D):
    https://www.youtube.com/watch?v=lHPgIJU_BR8

  • Sally Le page

    December 21, 2012 at 12:01 pm

    It worked!
    You, sir, are a genius and lifesaver 🙂
    Very many thanks
    Sally 🙂

  • Vishesh Arora

    December 21, 2012 at 12:06 pm

    Anytime Sally 🙂

    Vishesh Arora
    3D and Motion Graphics Artist
    Films Rajendra

    Blog:
    https://digieffects.wordpress.com

    Demo Reel(3D):
    https://www.youtube.com/watch?v=lHPgIJU_BR8

  • Andy Williams

    March 25, 2014 at 8:14 pm

    New Comp:
    Make a new layer -> Solid -> black solid
    Add your lens flare effect and do whatever you want with it, keyframe it, do what you want with it.
    Duplicate that layer (CTRL + D) or Edit -> Duplicate
    Turn they eye off on the first layer
    Set your TrkMatk drop down options on the second layer to Luma Matte “First layer name”

    You might lose a bit of the brightness of the flare this way but it works just fine (you can turn up the flare brightness under the layer effect options), turn on transparency grid and you can see you have removed the black background. Just another way to do it! 🙂

  • Zack Culver

    February 18, 2018 at 9:21 pm

    When I tried this the only options I had for use of a track matt were the PNG files I had layered above it… what am I missing here?

We use anonymous cookies to give you the best experience we can.
Our Privacy policy | GDPR Policy