When in Dome…

The Morehead Planetarium & Science Center Production Blog

The Joys of Wrap Deformers

by Jim Kachelries

December 7, 2010 | No comments | When in Dome

The wrap deformer was something that I didn’t learn about while I was going to school, but instead something I only learned about recently. It is an incredibly useful tool that can help add an extra dimension to characters and animation.

What the wrap deformer essentially is (atleast to my untrained eye in character rigging), is a way to have geometry influence an object seperate from it. It’s influence is based on proximity. What it effects is not the object as a whole, but the vertices; or in this particular case the lattice of another object.

This is an example of an eye from a character in our new show. The details on how wraps work exactly would be best read in the book I linked too in an earlier post:

Which you can find here

And here’s how it looks without a wrap:

What a difference!

Once you start to use the process it becomes quicker to make. Some important things to remember is that the object which is the deformer will not render, so it’s good to have a second head as the deformer, and make it affect a blendshape to go to the real eye.

This of course isn’t just limited to eyes but also teeth and anything else you can think of that you want to add some motion too.

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