Constructors
constructor
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Creates a new buffer for storing keyframe data.
Parameters
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keyType: KeyType
The type of keyframes that will be stored in the buffer.
Returns KeyframeBuffer
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Properties
keyOffset
The number of elements between successive keyframes in the array.
keyType
tangents
times
values
Methods
deleteKeyframe
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Deletes a keyframe at the specified index.
Parameters
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index: number
Returns void
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getKeyframeIndex
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Returns the index of the keyframe at the specified time.
Parameters
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t: number
Returns number
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insertQuatKeyframe
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Inserts a Quat keyframe with the specified time. The type of this buffer should be KeyType.Quat
Parameters
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t: number
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x: number
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y: number
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z: number
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w: number
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Optional inTanX: number
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Optional inTanY: number
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Optional inTanZ: number
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Optional inTanW: number
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Optional outTanX: number
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Optional outTanY: number
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Optional outTanZ: number
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Optional outTanW: number
Returns void
Index at which keyframe was inserted
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insertScalarKeyframe
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Inserts a Scalar keyframe with the specified time. The type of this buffer should be KeyType.Scalar
Parameters
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t: number
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val: number
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Optional inTan: number
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Optional outTan: number
Returns number
Index at which keyframe was inserted
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insertVec3Keyframe
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Inserts a Vec3 keyframe with the specified time. The type of this buffer should be KeyType.Vec3
Parameters
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t: number
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x: number
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y: number
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z: number
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Optional inTanX: number
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Optional inTanY: number
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Optional inTanZ: number
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Optional outTanX: number
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Optional outTanY: number
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Optional outTanZ: number
Returns number
Index at which keyframe was inserted
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updateQuatKeyframe
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Updates a Quat keyframe at the specified index. The type of this buffer should be KeyType.Quat
Parameters
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index: number
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t: number
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x: number
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y: number
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z: number
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w: number
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Optional inTanX: number
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Optional inTanY: number
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Optional inTanZ: number
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Optional inTanW: number
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Optional outTanX: number
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Optional outTanY: number
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Optional outTanZ: number
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Optional outTanW: number
Returns void
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updateScalarKeyframe
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Updates a Scalar keyframe at the specified index. The type of this buffer should be KeyType.Scalar
Parameters
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index: number
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t: number
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val: number
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Optional inTan: number
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Optional outTan: number
Returns void
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updateVec3Keyframe
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Updates a Vec3 keyframe at the specified index. The type of this buffer should be KeyType.Vec3
Parameters
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index: number
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t: number
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x: number
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y: number
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z: number
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Optional inTanX: number
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Optional inTanY: number
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Optional inTanZ: number
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Optional outTanX: number
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Optional outTanY: number
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Optional outTanZ: number
Returns number
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This class contains a collection of keyframes. A Keyframe consists of a scalar value T, representing the linear time in seconds, and a vector of scalars described by KeyType. Optionally, a Keyframe can also have a vector of tangents described by KeyType, that are used for cubic spline interpolation. Keyframes are stored in the times, values, and tangents arrays. For example, with KeyType of Vec3: times: t0, t1, ... tn values: v0x, v0y, v0z, ... vnx, vny, vnz tangents: in_v0x, in_v0y, in_v0z, out_v0x, out_v0y, out_v0z, ... in_vnx, in_vny, in_vnz, out_vnx, out_vny, out_vnz