Rigging the Female Nude With Blender: Breasts

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Monette Taida features large breasts so that the benefits of rigging the breasts will be clear. We will include the effects of gravity, so when our model is sideways, on her back, or upside-down, her breasts will fall naturally. We will also do basic collision with her upper-arms, since it is a very common situation for women posing nude to push and manipulate their breasts incidentally with their upper arms.

There is a bone that remains far below the rig at all times that allows us to know where “gravity goes.” We will use this to cause her breast mass and nipples to react correctly to gravity.

We will also allow the nipple to be pulled, stretched, and moved, which will cause the breast to expand/move properly along with it.

Finally, we will briefly touch upon Lilithe Classica, a small-breasted woman, and Princess Verachantesse, rigged for jiggliness. This way we can think about how to rig breasts in general, both for large and small women.

Lesson Sessions

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These consist of a three-part technical overview, and several other in-depth step-by-step sessions.

  1. (10m16s) FREE Technical Overview, Session 1, Monette
  2. (4m21s) FREE Technical Overview, Session 2, Lilithe
  3. (4m47s) FREE Technical Overview, Session 3, Verachantesse
  1. (34m33s) Session 1: Setup All Basics with Constraints
  2. (16m28s) Session 2: Checking Poses, Fixing Constraints, Add Arm Collision
  3. (11m35s) Session 3: Breast Jiggly Physics
  4. (4m53s) Session 4: Breast Stretch and Jiggle Bone Location Tweaks
  5. (22m51s) Session 5.0: Small-Breasted Lilithe First Pass
  6. (3m12s) Session 5.1: Small-Breasted Lilithe Refined

Supporting Me

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If you would like to support the free work I do, the extensive videos and documentation, and the community Discord server (click here to get in!) please head over to my Flipped Normals store and either buy a character, or a tutorial. Just spend whatever amount of money you feel equals the value I bring to the world. I also have a Gumroad page.

Bone Hierarchy

Here’s the hierarchy to help understanding how everything will be laid out:

  • Sternum
    • mch-pectoralGravity.L,R
      • def-pectoralInner.L,R
        • def-breastStretch.L,R
          • ctrl-breastMassController.L,R (stretches to Nipple controller)
          • ctrl-breastNippleController.L,R
          • def-breastOutsideUpper.L,R
    • mch-breastGravity.L,R (breastStretch stretches to this, also limit distance from def-humerus.L,R)

At the end we also add a breast Jiggle bone that’s the parent of the breastGravity bone, though this is not strictly necessary.

Educational Offerings

40p left 40p right We have multiple offerings: ~30-minutes of free technical overviews in 3 parts. This includes all the bones, their relationships, constraints, drivers, and some discussion. The second is a multi-hour multi-session lesson where we place all the bones from scratch, including brief forays into Lilithe Classica and Princess Verachantesse rigs to see how they differ.