AnimationChannel

Remarks

Position, rotation and scale keep their own time arrays, because an exporter emits keys only where a track actually changes. A character that translates for two seconds while rotating on every frame would otherwise carry two hundred position keys that all say the same thing.

Rotation is a quaternion and is deliberately not decomposed into Euler angles: a track sampled between two Euler triples takes a different path than one sampled between the rotations they represent, and the difference is the gimbal artefact everybody has seen.

The fourth track is a scalar and it drives a blend shape. WeightTimes/Weights against Shape is what glTF's weights sampler and FBX's morph channel bake down to — one curve per shape per morphed mesh. It is on this type rather than beside it because a track is a track: the same time arrays, the same held-at-both-ends rule, the same bucket index.

⚠ A channel is a transform channel or a weight channel, and nothing produces both. Target names a joint for the first and the morphed mesh's node for the second, which is why AnimationClip's unresolved count does not include a weight channel that names no joint — a face mesh is not expected to be one.

Fields and properties (10)

• public string Target

  Which node or joint it drives, by name.

• public float[] PositionTimes

  When each position key is, in seconds.

• public Vector3[] Positions

  The position keys.

• public float[] RotationTimes

  When each rotation key is, in seconds.

• public Quaternion[] Rotations

  The rotation keys.

• public float[] ScaleTimes

  When each scale key is, in seconds.

• public Vector3[] Scales

  The scale keys.

• public string Shape

  Which blend shape the scalar track drives, by name, or empty for a transform channel.

• public float[] WeightTimes

  When each weight key is, in seconds.

• public float[] Weights

  The weight keys, one per WeightTimes entry.

Used by (21)

• RigsVixen.Benchmarks.Animation
• AnimationClipVixen.Animation
• AnimationClipContentVixen.Animation
• AnimationClipDataVixen.Rendering
• AnimationClipTestsVixen.Animation.Tests
• AnimationCurveCompressorVixen.Animation
• AuthoringTestsVixen.Animation.Tests
• BlendShapeTrackTestsVixen.Animation.Tests
• CompressionTestsVixen.Animation.Tests
• ModelDataTestsVixen.Rendering.Tests
• RigVixen.Ai.Nodes.Tests
• SkeletonRetargetVixen.Animation
• TestRigsVixen.Animation.Tests
• TypeRegistrationVixen.Rendering
• Vixen_Rendering_AnimationChannelSerializerVixen.Rendering
• Vixen_Rendering_AnimationClipDataSerializerVixen.Rendering
• AnimationClipAssetVixen.Editor.Assets
• AnimationClipImporterTestsVixen.Editor.Assets.Tests
• AuthoringTestsVixen.Editor.AssetEditors.Tests
• ModelReaderVixen.Editor.Assets
• ModelReaderTestsVixen.Editor.Assets.Tests