Animate a Cross-section

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  04 April 2013
Animate a Cross-section


Can anyone tell me how to animate a section plane in maya. I've found that the mirror cut plane with the operation set to none works well, but it leaves the original object open. I need to to texture the cut so that the object looks solid. I've attached an image that shows what I need to do.


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File Type: jpg Pella_CornerCrossSection-1.jpg (39.6 KB, 31 views)
  04 April 2013
No one has any input on this? I've seen this type of thing done quite a bit.
  04 April 2013
What's the animation exactly?
  04 April 2013
Renderman has CSG booleans that works great, Mental Ray has a couple shaders that you might be able to use. I have had the best luck just creating two renderlayers, one with the complete object, and one that is modeled in cross section. Then you cross fade in comp. You can't animate the cross section plane but you have exact control over what it looks like and its clean every time.
Ryan Brady
Special Projects Lead
  04 April 2013
The puppet shaders have a render-time boolean that works really well. I vaguely remember you can put different materials on the cut-away parts, but I haven't used it in years.

Download this:

Unzip the archive, open the Docs folder, click on "index.html", then in your browser click on "p_CSG" from the headings on the left hand side. That'll show you examples and even a movie. And yeah, it's lame Maya can't do this common effect out of the box.
Side effects may include Involuntary Narnia Adventure.
  04 April 2013
the puppet shaders for CSG don't work well with FG...give it a go though, might be enough.

  04 April 2013
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