Notch Notch Manual 0.9.23
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NVIDIA AR Body Tracker Skeleton

NVIDIA AR Body Tracker Skeleton

Control skeletal rigs from a camera feed with NVIDIA AR.



Method #

This node applies the tracked skeleton from the NVIDIA AR Body Tracker to the skeleton of a connected rigged character.

This node requires the installation of the NVIDIA AR SDK, which can be downloaded here : NVIDIA AR SDK. Make sure you get the correct driver for your GPU, Turing (20XX), Ampere (30XX) and Ada (40XX) use different drivers and they are not cross compatible.
For best results, use a character with a rig generated from Mixamo. Other skeletons can be used, but results may vary.

This node outputs the normal transformation and translation values, but it also outputs geometry which can be modified with Deformer nodes, or used as a mesh sources for nodes which accept mesh connections, such as the Field 3D Object Emitter or the Procedural 3D Object.


These properties control the 3D transforms of the node. Transforms will generally be inherited by child nodes, although they can be ignored through the Inherit Transform Channels attributes.

Position XMove along the local x-axis.
Position YMove along the local y-axis.
Position ZMove along the local z-axis.
Rotation HeadingRotate around the local y-axis.
Rotation PitchRotate around the local x-axis.
Rotation BankRotate around the local z-axis.
Scale XScale along the local x-axis.
Scale YScale along the local y-axis.
Scale ZScale along the local z-axis.

Toggle which transform channels should be inherited from the parent node. By default, all transforms will be inherited.

Position XToggle inheritance of the X Position from the parent.
Position YToggle inheritance of the Y Position from the parent.
Position ZToggle inheritance of the Z Position from the parent.
Rotation HeadingToggle inheritance of the Rotation Heading from the parent.
Rotation PitchToggle inheritance of the Rotation Pitch from the parent.
Rotation BankToggle inheritance of the Rotation Bank from the parent.
Scale XToggle inheritance of the X Scale from the parent.
Scale YToggle inheritance of the Y Scale from the parent.
Scale ZToggle inheritance of the Z Scale from the parent.
World Position OnlyInherit the world position from the parent only, rotation and scale will be ignored. Overrides above properties.
Inherit TimeToggle inheritance of time from the parent.

These properties control the core behaviours of the node.

Input Skeleton ScaleScale the size of the input skeleton.
SmoothingHow much smoothing is applied to the output skeletons motion.
MirroredMirror the movements of the incoming mobcap data along the x axis.
Flip ZFlip the Z axis of the skeleton, to match a model with a flipped z axis.
Tracking Confidence ThresholdThreshold for how confident the tracking data needs to be before applying to the skeleton rig.


NameDescriptionTypical Input
NVIDIA AR Body TrackerRequired body tracker input, for generating a tracked skeletonNVIDIA AR Body Tracker
Hierarchy RootConnect the skeleton root node to drive the rest of the skeleton from.Imported 3D Scene
Transform ModifiersApply the transforms of another node to this node.Null
Target NodeModifiy the rotations of the node to always direct the z axis towards the input.Null
Local Transform OverrideApply the transforms of another node to this node, relative to its parent.Null