• Adobe After Effects

  Mask Exclusion

  Posted by Than Baardson on June 19, 2009 at 8:30 pm

  I’m trying to isolate graphics to a ‘tv screen’ and created an adjustment layer and mask to do so. what is the next step so my graphics don’t go beyond the limits of my mask?

  Than Baardson replied 16 years, 10 months ago 2 Members · 2 Replies
• 2 Replies

• 

  David Johnson

  June 20, 2009 at 12:53 pm

  If I understand your question correctly, you just need to make your mask layer an Alpha Matte (or Inverted Alpha Matte) for your graphics layer(s) … if your graphics are on multiple layers, you’ll need to pre-compose them since you can only use an Alpha Matte for one layer. You could also pre-compose your graphics and just make a mask on that precomp layer instead of using an Alpha Matte.

  I don’t have AE open right now, but the Alpha Matte options are in your timeline right next to the other switches, although they may not show by default so you may need to right or option click to show them.
• 

  Than Baardson

  June 23, 2009 at 6:38 pm

  Hey thanks a lot Dave. Perfect.

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