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Animation with Maya

Animation with Maya. 2009-2010 lionel.reveret@inria.fr estelle.duveau@inria.fr. Basic concepts. Key-frame animation any attribute is a function of time Reactive animation attribute is a function of another attribute Deformers Non-linear modification of shape and space Physical animation

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Animation with Maya

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  1. Animation with Maya 2009-2010 lionel.reveret@inria.fr estelle.duveau@inria.fr

  2. Basic concepts • Key-frame animation • any attribute is a function of time • Reactive animation • attribute is a function of another attribute • Deformers • Non-linear modification of shape and space • Physical animation • attribute is driven by laws of dynamics (f=ma)

  3. Key-frame animation • Set time (position time slider) • Edit attribute (move, rotate, etc) • Set key (‘s’ key) • Playback • Visualize/edit curves with Graph Editor - value and tangents

  4. Attribut time

  5. Reactive animation • Driven-key animation (Animate>Set Driven Key) • Ex: the cube “avoids” the sphere • Sphere is the “driver” • Cube is the “driven”

  6. Translate Z Cube Translate Y Sphere

  7. Deformers • Nonlinear tools • Shape: bend, twist, etc (Deform>Nonlinear) • Space: lattice, wrap, etc • Vertices morphing • Blend shapes • typically for facial animation • Clusters • weights can be edited by “painting”

  8. Character animation • Create a skeleton (Skeleton>Joint Tool) • Create joints chain (end chain with return) • Create a hierarchy (click on parent joint) • Bind a skin (Skin>Bind Skin>Smooth Bind) • “Shape” of the character • Control with IK handle (Skeleton>IK Handle Tool) • Higher level of control

  9. Character example

  10. Physical animation • Specialized menu : Dynamics • Rigid bodies • Motion (inertia, f=ma) • Collision (contact forces) • Non-rigid bodies • Clothes (mass-spring system) • Fluids (particles system, Navier-Stokes)

  11. Physical animation Simple example • Create a scene • Create gravity field (Fields menu) • Ball => set to Active Rigid bodies • Planes => set to Passive Rigid bodies (Soft/Rigid bodies menu) • Bind field and Active Rigid body (Window>Relationships Editors>Dynamic) • Bake simulation => set keyframes (Edit>Keys>Bake Simulation)

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