• Maxon Cinema 4D

  After Effects Composite shadow for a Rigid Body simulation using Instance

  Posted by Michael Garske on March 2, 2014 at 5:32 pm

  R15 Studio
  AE 12.2.1

  I have a floor with a collider body tag and an object with a rigid body tag. I’m trying to composite the shadow of the rigid body object in After Effects using an instance as the shadow caster. But when I apply the rigid body tag to the instance to replicate the simulation it’s interacting with the object itself causing the two to bounce off one another.

  Is there a way for me to exclude the instance shadow caster from interacting with the actual object? Am I going about this entirely the wrong way?

  I’m very new to Cinema 4D so thanks so much for your time and knowledge!

  Michael Garske replied 12 years, 2 months ago 2 Members · 3 Replies
• 3 Replies

• 

  Adam Trachtenberg

  March 2, 2014 at 5:44 pm

  I don’t understand. Why are you using the instance object instead of just rendering out a shadow pass?
• 

  Michael Garske

  March 3, 2014 at 12:28 am

  I saw a tutorial recommending that I use instances to single out shadows in AE.

  Thanks for the advice for multi-pass output. I was able to bring a shadow layer into AE using multi-pass but the shadows aren’t displaying correctly in AE for some reason. Here are a couple of screen shots for my scene setup if it helps.

  

  

  I know I can get the shadow back if I put the floor and bone on the same layer but then I won’t be able to composite the shadow separately.

  It looks like the Global Illumination is rendering differently as well. I’m brand new to this workflow so I’m not sure what I could be missing. Thanks again!
• 

  Michael Garske

  March 3, 2014 at 4:51 am

  I figured it out. I just needed to set one cineware layer in AE with both the floor and object to a shadow pass. Thanks again!

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