• Adobe After Effects

  Oval Mask, too oval.

  Posted by George Lodygensky on January 10, 2010 at 8:50 pm

  So i know that the oval mask when Shift-keyed comes out as a perfect circle, but I don’t know
  why mine is just too oval:

  Oval Mask

  Background: i was just trying this video copilot tutorial: https://www.videocopilot.net/tutorials/3d_light_casting/
  (don’t judge me)

  and then when did the polar Coordinate plugin i noticed that was not really round but i said like “ok” all i have to do is exted the image on the Y axis:

  Not right
  to:
  Fixed

  But then when i did the mask (pressing shift) it just got really weird because that shoud look like a perfect circle.

  So can any body help me figure out why is that happening?

  George Lodygensky replied 16 years, 7 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Michael Natkin

  January 11, 2010 at 7:28 pm

  I’m not completely sure I understand what you are asking, but if your point is that the “circle” in the second one isn’t exactly perfect, you are correct. The circle is made with Bezier curves, which can’t actually represent a perfect circle. Here is a reference:

  https://www.whizkidtech.redprince.net/bezier/circle/

  Michael Natkin
  Sr. Software Engineer
  Adobe After Effects
• 

  George Lodygensky

  January 12, 2010 at 6:15 pm

  Thank god I posted this at the Basics section.

  Thank you Mr. LaRonde, the aspect ration was turned off.

  Sorry for the useless question, but thank you too Michael.

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