Bone
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Bones are non-rendered objects that drive the movement of one or more parts for the purposes of animation, or creating clothing and characters. Bones are part of a Model or MeshPart object's skeletal rig that you typically access and animate through the Animation Editor.
Rigs are created during the modeling process in third-party software such as Blender or Maya. After importing the rigged model into Studio, you can add the model directly to your experience, or save and share the model as an asset. See Rigging for more details on creating and using rigged models.
Note that you can parent Bones under other Bones and parts. When parenting a bone to another bone, the child bone's world position will be relative to the parent bone's position, and the hierarchy of parented Bone objects can change the behavior of affected parts during posing or animation.
Relationship with Motor6D
To support animations with older rigs using joints, such as Motor6D, you can use the Bone.Transform property in the same way as Motor6D.Transform. Roblox uses the offset of the bones from the default pose to drive an animation, and bones are not replicated or serialized.
Bone.CFrame
Bones inherit the CFrame property of Attachments which Roblox uses as the bone's reference position. The inherited WorldCFrame and other world properties return the initial un-transformed position.
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Determines the current animated offset of the bone in its local space.
Describes the combined CFrame offset of the bone and the current animation offset in the bone local space.
Describes the combined CFrame offset of the bone and the current animation offset in world space.
Direction of the X axis of the attachment, represented as a unit Vector3.
CFrame offset of the attachment.
Orientation of the attachment relative to the orientation of its parent.
Positional offset of the attachment, relative to the position and orientation of its parent.
Direction of the Y axis of the attachment, represented as a unit Vector3.
Toggles the in-experience visibility of the attachment.
Direction of the X axis of the attachment relative to the world, represented as a unit Vector3 with a length of 1.
The exact CFrame of the attachment in world space coordinates.
Orientation of the attachment relative to the world rather than its own parent.
Position of the attachment relative to the world rather than its own parent.
Direction of the Y axis of the attachment relative to the world, represented as a unit Vector3 with a length of 1.
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Transform
Transform determines the current animated offset of the bone relative to its CFrame. This property is set by Roblox when animations on skinned meshes are played, although it can be manipulated manually in a manner similar to Motor6D.Transform.
See also:
- Motor6D.Transform, a property which plays a similar role in character rig animation
- TransformedCFrame and TransformedWorldCFrame, whose values are partially determined by this property
TransformedCFrame
TransformedCFrame describes the combined CFrame offset of the bone and the current animation offset (Transform) in the bone's local space.
See also:
- Transform, a property which partially determines this property's value
- Bone.TransformedWorldCFrame, a world-space variant of this property
TransformedWorldCFrame
TransformedWorldCFrame describes the combined CFrame offset of the bone and the current animation offset (Transform) in world space.
See also:
- Transform, a property which partially determines this property's value
- Bone.TransformedCFrame, a local-space variant of this property