3D Character Creation
Class 11: Character RiggingTopics
- Character Rigging
- Skeleton
- Class 11 Lab

Class 11 emerging
Character Rigging
Definition:
The ropes, chains, etc., employed to support and work the masts,yards, sails, etc., on a ship. (dictionary.com) Obviously this is referring to boat rigging but it is actually pretty close to 3D rigging as well. 3D riggers produce the deformers, constraints, solvers, and controllers that allow a model to be animated. As a character rigger/TD you are expected.
- You are required to know what is expected of a character and how to implement Maya’s tools to make it possible
- This means a rig has to be “right” and “clean.” (unlike modeling, texturing, animating, etc.)
- If problems are not resolved ahead of time they will haunt you down the pipeline, half your job as a Character TD is problem solving
In Production:
- Modeler: Builds the body of the car.
- Texturer: Paints the car and adds decals and other details.
- Rigger: Produces the engine, wiring, and functional aspects of the car that allows a driver to drive it.
- Animator: Drives the vehicle.
- Lighter/Renderer: This would just be the sun or lamp that illuminates the car.
Nodes:
Maya is a comprised of nodes that can be manipulated and connected using the hypergraph and other utilities. Nodes are kind of like little boxes with a variety of stuff in them you can manipulate (Attributes) and Maya is the warehouse where they are stored. Rigging is the collection of organized and connected nodes using a very high-level programming language to create a framework with which the animator can affect the character’s mesh. (how’s that for a run-on sentence).


Skeleton
Skeleton:
Skeletons are hierarchical, articulated structures that let you pose and animate bound models. A skeleton provides a deformable model with the same underlying structure as the human skeleton gives the human body.
Joints:
Joints are the building blocks of skeletons. They are the points of articulation and what the mesh binds to. These are not renderable.


Joint Placement:
Remember there are two primary factors that determine joint placement are anatomy and topology.
- Limbs
- Place in the center of the mass (generally).
- Place joints in the center of the edge loops.
- Volumes
- For the spine or multi-jointed areas keep the number of the joint relative to the number of edge loops (1 to 1, 1 to 2, etc.)
- Fat limbs can have multiple joints to spread out deformation.
- Anatomy
- Knowing anatomy can help you place joints but don’t be overly concerned with it.
- Anatomy is a good place to start when rigging animals.

Binding and Weight Painting:
Binding is the process by which you attach the model to the skeletal joints via a skin cluster node. There are settings you can adjust to improve the initial bind but inevitably you must tweak the weights of the skin cluster by painting individual vertices.





The weights of one joint should blend to the weights of the other.
Class 11: Rig & Animation (skeleton & weight-painting) Lab
Rig & Animation (skeleton & weight-painting) Lab
The final lab series involves rigging one of your characters from your project and then animating the result. The first setp of rigging your character is creating a skeleton and binding your model to it. The skeleton is much the same as its real-world counterpart. It is the support structure and foundation of articulation in the model. You could look at binding the model as parenting the components of the model to the skeleton. You determine the “parenting” of the components to which bones through weight painting. Once completed your model can bend, twist, and general deform to any natural and/or unnatural pose.
You will be graded on the following:
- Lab Requirements
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Techniques and processes covered in the instructional material is followed and implemented.
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- Creativity & Craftsmanship
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Excellent design choices, novel & appealing, and solid clean caliber work.
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Resources:
- Assignment Video Tutorials
- You may watch the tutorial videos below to help you complete your assignment.
Assignment Video Tutorials
Wait! Before you go!
Did you remember to?
- Read through this webpage
- Submit Class 11 Rig & Animation (skeleton & weight-painting) Lab on Blackboard
