Extending the Animation Rigging package with C# – Unite Copenhagen 2019
•
1 j'aime•4,913 vues
The Animation Rigging package can be extended with C# to enable precise results for specific gameplay needs. In this talk at Unite Copenhagen, Unity Animation Developer Sven Santema demonstrates how to build custom rig constraints in C#. The goal was to show how you can easily extend the package to add secondary motions on your character rigs at runtime and how you can create authoring constraints to tweak your current animation assets within Unity. Speaker: Sven Santema – Unity Watch the session on YouTube: https://youtu.be/xwwK0lAlSyY
Recommandé
Recommandé
Contenu connexe
Tendances
Tendances (20)
Similaire à Extending the Animation Rigging package with C# – Unite Copenhagen 2019
Similaire à Extending the Animation Rigging package with C# – Unite Copenhagen 2019 (20)
Plus de Unity Technologies
Plus de Unity Technologies (20)
Dernier
Dernier (20)
Extending the Animation Rigging package with C# – Unite Copenhagen 2019
- 2. Extending the Animation Rigging package with C# Sven Santema – Graphics R&D, Unity Copenhagen
- 3. What is Animation Rigging? 3 — Runtime Rigging — Procedural motion for animated skeletons at runtime — Animation Authoring — Author new and existing clips — Preview package since 2019.1 — Modularity
- 4. Animation Rigging Overview 4 Start with a character that has a skeleton and animations Add Rig Builder and Rigs Add Rig Constraints to the Rigs Create procedural motion at runtime
- 5. Rig Constraints 5 — Contains a core set of constraints — World Interactions
- 6. Rig Constraints 6 — Contains a core set of constraints — World Interactions — Procedural secondary animation
- 7. Rig Constraints 7 — Contains a core set of constraints — World Interactions — Procedural secondary animation — Skeletal deformations fix up
- 8. Rig Constraints 8 — Contains a core set of constraints — World Interactions — Procedural secondary animation — Skeletal deformations fix up — Evaluation order based on hierarchy view (depth first)
- 9. Put more Rig Constraints together 9 — Single idle animation playing on all ninjas — Various constraints, with keyframed properties
- 10. Lets Get More Technical 10 — Every rig constraint is an C# Animation Job — Animation C# Jobs – Frictionless multi-threaded scheduling performed by the Animator – Enables you to modify an animation pose on the Animator thread prior to writing it back to the GameObjects — Animation Stream – TransformStreamHandles – PropertyStreamHandles — SceneHandles
- 11. Open Rigging Toolkit 11 — Modify existing constraints or create completely new constraints — Each production is unique – Constraints can be custom made – For potential performance gains or unique behaviors
- 12. Scripting a custom constraint 12 — Boils down to declaring a RigConstraint
- 13. Scripting a custom constraint 13 — Boils down to declaring a RigConstraint
- 14. Scripting a custom constraint 14 — Boils down to declaring a RigConstraint
- 15. Scripting a custom constraint 15 — Boils down to declaring a RigConstraint
- 16. Scripting a custom constraint 16 constrainedObject.position = -1f * sourceObject.position;
- 17. Scripting a custom constraint 17 — Boils down to declaring a RigConstraint
- 18. Scripting a custom constraint 18 HelloWorldJob is an IWeightedAnimationJob
- 19. Scripting a custom constraint 19 HelloWorldJob is an IWeightedAnimationJob Two bone ik with weight = no pop Two bone ik without weight = pop
- 20. Scripting a custom constraint 20 HelloWorldJob is an IWeightedAnimationJob
- 21. Scripting a custom constraint 21 HelloWorldData is an IAnimationJobData Contains necessary data to create the job
- 22. Scripting a custom constraint 22 HelloWorldData is an IAnimationJobData
- 23. Scripting a custom constraint 23 HelloWorldBinder is an AnimationJobBinder Create/Destroy/Update an IAnimationJob given some IAnimationData
- 24. Scripting a custom constraint 24 HelloWorldBinder is an AnimationJobBinder
- 25. Scripting a custom constraint 25
- 26. Inspecting the Playable Graph 26
- 27. Inspecting the Playable Graph 27 Animation Stream
- 28. Inspecting the Playable Graph 28
- 29. Inspecting the Playable Graph 29 Previous Values
- 30. Inspecting the Playable Graph 30
- 31. Inspecting the Playable Graph 31
- 32. Sync Values to Animation Stream 32 — First job to run before evaluating any of the rig layers — Pushes latest scene values to the animation stream – Only if these have NOT previously been animated – Makes latest values available to all downstream jobs — Flag constraint fields using [SyncSceneToStream] – Works on a limited set of data types – Float, Int, Bool, Vector[2,3,4], Quaternions, Vector3Int, Vector3Bool – Transform, Transform[], WeightedTransform, WeightedTransformArray
- 33. Scripting a custom constraint 33 HelloWorldData is an IAnimationJobData
- 34. Sync Values to Animation Stream 34 — RigTransform component – A quick way to sync transforms that are not referenced by any constraints
- 36. Jiggle Chain Constraint 36 Root Cube 1 Cube N Tip
- 37. Jiggle Chain Constraint 37 Root Tip Target Root (TR) Target (T) Dynamic Offset Frame N [at rest] Particle (P)
- 38. External forces (gravity, wind, etc.) Root Tip Particle (P) Root Tip Jiggle Chain Constraint 38 Constrain particle at dynamic offset distance C(P, TR) = |P - TR| - Offset Constrain particle to target C(P, T) = |P - T| Frame N + 1
- 39. Solve particle dynamics and update particle position Rotate object given new aim vector computed from TR and particle position Jiggle Chain Constraint 39 Root TipTip Frame N + 1
- 40. Jiggle Chain Constraint 40 Root Tip
- 42. More Trees 42 One column body text lorem ipsum dolor sit amet, consectetur adipiscing elit.
- 43. Wobbly Ninja 43
- 45. Summary 45 — Shown how to write a custom constraint — Had a look behind the scenes — Illustrated how to make complex constraints — Look forward seeing your creations! — Want to learn more? — Two blog posts — GDC vault — Siggraph talks — Share your feedback with us
- 46. Thank you! 46 — We look forward to hearing your feedback on Animation Rigging https://forum.unity.com/forums/animation-previews.141/ Sven Santema - svens@unity3d.com Jiggle Chain Constraint Twist Chain Constraint