• Adobe After Effects Expressions

  preserving cameras

  Posted by Bill Kimzey on October 27, 2006 at 4:45 pm

  My problem involves the collapse composition/continuously rasterize button.

  I’d like to place an SD comp that uses Illustrator files and multiple cameras into an HD comp, scaling the SD comp to fit.

  The problem is if I click the button, it collapses the composition, and I lose the camera angles.

  If I don’t click the button, the composition isn’t collapsed, camera angle/view is preserved, but the Illustrator file isn’t continuously rasterized, so scaling isn’t smooth.

  Seems like the button’s double duty has done me dirty.

  Any way to work around this?

  Thanks

  Mylenium replied 19 years, 6 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Mylenium

  October 27, 2006 at 5:39 pm

  You could always copy&paste the cam and scale the values with expressions:

  
  X=position[0]*1280/720;
  Y=position[1]*720/576;
  Z=position[2]*720/576;

  [X,Y,Z]

  Use similar formulas on otrher parameters. Beware though, that you may have to adjust the zoom manually, though. Due to the different frustrum it may drift/ float a little.

  Mylenium

  [Pour Myl

Reply to this Discussion! Login or Sign Up