• Adobe After Effects Expressions

  Gravity?

  Posted by Belgiandave on August 17, 2006 at 2:47 pm

  Hi All

  I am trying to recreate a piece of paper fallen over in 3D, because of the wind. The wind will be created because the camera flies over.

  Can anybody give me any tips?

  Thanks in advance

  Belgian Dave

  Belgiandave replied 19 years, 11 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Greg Neumayer

  August 17, 2006 at 8:40 pm

  You’ve touched on a lot of different functions there.
  Do some research on expressions and gravity. There are some good equasions out there that you can use, but more importantly, gravity is only one part of your effect, and a small one at that. Gravity simply causes something to speed up as it falls. You also need to consider, bounce (probably not for paper), wind/air resistance or turbulence, and the way air will cushion lightweight objects just prior to hitting the ground, especially if something is “falling over” as you described. For your paper, you won’t be able to physically have a curved object, but you may be able to get away with simulating a curved piece of paper using warping effects.

  If I were doing this and really needed camera flexibility and a range of movement, I’d probably build it in Maya, get my camera moving like I want, render it out using Maya’s gravity and hard/soft bodies, then try to import the camera data into AE and build the rest of the scene in AE.

  But, if you want to simulate it in AE only, the best bet is to learn what you can and can’t do in AE, and build your camera move and scene around maximizing the app within those limitations.

  Best of luck,
  Greg

  Antifreeze Design
  https://www.antifreezemotiongraphics.com
• 

  Belgiandave

  August 18, 2006 at 8:58 am

  Thanks for your help.

  I had some research already but it seems that I need some more.

  Dave

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