• Adobe After Effects Expressions

  Access Mask Interpolation in script ?

  Posted by Steve Sierra on April 7, 2017 at 8:24 pm

  Hi,

  Is it possible to access, change the settings and apply the built in” Mask Interpolation” on a mask via script ?

  Thanks !;)

  Steve Sierra replied 9 years, 1 month ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  April 8, 2017 at 12:05 am

  As far as I know, there’s no way to do that with scripting.

  Dan
• 

  Steve Sierra

  April 8, 2017 at 12:50 pm

  Thank you Dan !
  I’ll have to do it by hand, unless I can find a way to imitate it…

  Let’s say we have a mask interpolating between two different keyframes A and B.

  here’s what I’m thinking :

  first :
  – if both keyframes don’t have the same number of verticies, add verticies where needed.
  – if it isn’t possible, use (A+ 1 frame) as (A) or (B- 1 frame) as (B)

  then :
  – set keys at every frame
  – gather vertices order and position info at every frame
  – compare every vertice’s x and y position compared to the previous and next vertex at frames A and B (verticies V1-V2-V3)
  – if the verticies are in the same x and y “order”(xV1A&& xV1B&& yV1A&& yV1B

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