I'm currently working for a cartoonist who wants to animate his illustrations for a pilot for tv. I decided to use Maya over Flash for it's excellent character tools and detailed animation controls. My first approach was to model and rig in 3d and render with a toonshader, but this changed the whole look of the characters. The idea is to preserve the quirky "character" of the original linework and 3d was looking too slick. After a few other approaches I settled on this method: linework converted to cv curves, ridgid-bound to ik rig, blendshapes for face/hands. I'm very careful to make sure the cvs are planar, (thanks Gino Dammers for your excellent script!) Planar trim to create updating surfaces from the curves, it all works flawlessly. My test chracter is now fully rigged, good range of motion, no ugly joint deformations, and still quirky! Here's the problem though, when the leg is set to a certain position, one of the trimmed surfaces vanishes and Maya says "unable to compute trimmed surface." Are trimmed surfaces just quirky like that or is there something I'm missing? Thank you in advance!