• Adobe After Effects

  Multipass Refraction postpro

  Posted by Matthias Gottung on January 28, 2008 at 9:13 pm

  Hey there,

  I’m currently messing around with cinema4d and multipass rendering.

  Everything works quite fine, aside of the refraction.
  Any idea how I can change the refraction in post so that, for example, a character could walk
  behind a glass and it would look like something? It doesn’t need to be “physical correct”

  I tried displacement maps but had no luck
  I made a lil demo pic if someone wants to help

  https://rapidshare.com/files/87386023/refraction.rar

  any help?
  Matt

  Matthias Gottung replied 18 years, 6 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Darby Edelen

  January 28, 2008 at 10:35 pm

  I’m not entirely familiar with the relationship between C4D and AE. I’m trying to get into it more, but unfortunately deadlines take precedence over self-enlightenment.

  I will say that, depending on your implementation for refraction, my understanding is that a displacement map should probably point to a render pass of the scene’s normals. You will probably also want a matte to determine what will be refracted, it looks like the fresnel pass (I think that’s what it is?) should work for that.

  Darby Edelen
  Designer
  Left Coast Digital
  Santa Cruz, CA
• 

  Matthias Gottung

  January 29, 2008 at 12:05 am

  Wohoo! Thanks Darby! Haven’t thought about the normals at all!

  Worked just liked it should do 🙂

Reply to this Discussion! Login or Sign Up