2009
Table Of Contents
- Contents
- Overview
- Maya Basics
- Polygonal Modeling
- Introduction
- Preparing for the lesson
- Lesson 1: Modeling a polygonal mesh
- Introduction
- Setting modeling preferences
- Using 2D reference images
- Creating a polygon primitive
- Modeling in shaded mode
- Model symmetry
- Selecting components by painting
- Selecting edge loops
- Editing components in the orthographic views
- Editing components in the perspective view
- Drawing a polygon
- Extruding polygon components
- Bridging between edges
- Adding polygons to a mesh
- Splitting polygon faces
- Terminating edge loops
- Deleting construction history
- Mirror copying a mesh
- Working with a smoothed mesh
- Creasing and hardening edges on a mesh
- Beyond the lesson
- NURBS Modeling
- Subdivision Surfaces
- Animation
- Introduction
- Preparing for the lessons
- Lesson 1: Keyframes and the Graph Editor
- Lesson 2: Set Driven Key
- Lesson 3: Path animation
- Lesson 4: Nonlinear animation with Trax
- Introduction
- Open the first scene for the lesson
- Creating clips with Trax
- Changing the position of clips with Trax
- Editing the animation of clips
- Reusing clips within Trax
- Soloing and muting tracks
- Scaling clips within Trax
- Open the second scene for the lesson
- Creating clips from motion capture data
- Extending the length of motion capture data
- Redirecting the motion within a clip
- Beyond the lesson
- Lesson 5: Inverse kinematics
- Introduction
- Open the scene for the lesson
- Understanding hierarchies
- Viewing hierarchies using the Hypergraph
- Creating a skeleton hierarchy
- Parenting a model into a skeleton hierarchy
- Applying IK to a skeleton hierarchy
- Creating a control object for an IK system
- Constraining an IK system
- Limiting the range of motion of an IK system
- Simplifying the display of a hierarchy
- Applying parent constraints on an IK system
- Planning an animation for an IK system
- Animating an IK system
- Beyond the lesson
- Character Setup
- Polygon Texturing
- Rendering
- Introduction
- Preparing for the lessons
- Lesson 1: Rendering a scene
- Introduction
- Open the scene for the lesson
- Creating shading materials for objects
- Refining shading materials for objects
- Maya renderers
- Rendering a single frame using IPR
- Rendering using the Maya software renderer
- Batch rendering a sequence of animation frames
- Viewing a sequence of rendered frames
- Beyond the lesson
- Lesson 2: Shading surfaces
- Lesson 3: Lights, shadows, and cameras
- Lesson 4: Global Illumination
- Lesson 5: Caustics
- Dynamics
- Painting
- Introduction
- Preparing for the lessons
- Lesson 1: Painting in 2D using Paint Effects
- Lesson 2: Painting in 3D using Paint Effects
- Introduction
- Preparing for the lessons
- Brushes and strokes
- Rendering Paint Effects strokes
- Paint Effects on 3D objects
- Creating a surface to paint on
- Painting on objects
- Using turbulence with brush stroke tubes
- Using additional preset brushes
- Mesh brushes
- Converting mesh strokes to polygons
- Modifying a converted polygonal mesh
- Beyond the lesson
- Lesson 3: Painting textures on surfaces
- Expressions
- Scripting in Maya
- Index
Some basic concepts
The following section introduces some basic concepts that help you understand
what’s going on when you use scripting in Maya.
The command architecture
Maya has a command-based architecture for handling all of its operations.
The commands for all of Maya’s functionality are accessed through scripting
language commands tied to the Maya user interface—menus, tools, dialog
boxes; in fact, just about anything you interact with in Maya. As well, you
can explicitly enter Maya commands in the scripting languages that Maya
supports.
Every Maya command has multiple arguments that set the way in which the
command executes. Arguments and their implicit or explicit values are required
for a command to execute.
To set argument values, the scripting languages in Maya use flags. Flags tell
the scripting language which argument of the Maya command is set with
what value. The value that is assigned to the argument follows the flag.
Flags have short and long names in MEL and Python. Commands execute
identically whether or not you use the short or long name of the flag. Long
names are often descriptive and useful for new users; short names abbreviate
flag names for power users.
Scripting languages in Maya
Maya supports two scripting languages:
■ MEL (Maya Embedded Language) is a proprietary scripting language
modeled after Unix shell script.
■ Python is a recent addition to Maya that provides the same access to Maya’s
commands as MEL. Python is a widely-used modern programming
language.
Maya’s user interface is built using scripts that execute (call) Maya commands.
As Python is a recent addition to Maya, the majority of the scripts accessed
through the user interface are written in MEL.
For example, when you click the sphere icon on the Shelf or select an item
from a menu, Maya calls MEL commands to create a sphere or execute the
command associated with the menu item.
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