Mastering Tricky Folds in Animation with Skin and Skin Morph

Published on January 08, 2026 | Translated from Spanish
Visual comparison of deformations with and without Skin Morph in the arm-body joint area

When Folds Decide to Rebel

There are vertices that seem to have the soul of an abstract artist, creating folds that would make any animator cry. 😭 The Skin modifier does a decent job, but for those problematic areas like armpits or groin, we need to call in the specialist: Skin Morph. It's like taking your deformation to the digital physiotherapist.

The Dynamic Duo: Skin + Skin Morph

This combination is the Batmobile of animation:

Quick Guide to Using Skin Morph Like a Pro

  1. Identify the problematic pose (that angle where everything breaks)
  2. Create a Morph Target with the bone in extreme position
  3. Edit the mesh as if it were digital clay 🎨
  4. Test, curse, adjust, and repeat
A well-applied Morph Target is worth a thousand hours of manual weight adjustments. But ten poorly applied Morph Targets can create a monster worse than your worst nightmares.

Mistakes That Will Turn Your Character into a Nightmare

Avoid these deadly sins of Skin Morph:

Fun fact: The most difficult vertices to tame are usually in the same areas where humans have real folds. Maybe 3D models are more human than we think. Or maybe anatomy is complicated even in pixels. 🤔

Remember: if all else fails, you can always say it's an artistic style. Who can say you didn't want your character's elbow to fold like an accordion? 🪗 After all, art is subjective... until the client sees it.