NVIDIA AR Body Tracker Skeleton
Updated: 15 Sep 2026
Control skeletal rigs from a camera feed with NVIDIA AR.
NVIDIA AR Body Tracker Skeleton
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 Mesh Emitter or the Procedural Mesh.
Parameters
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.
Parameter Details Position X
The objects position along the local x-axis.
Position Y
The objects position along the local y-axis.
Position Z
The objects position along the local z-axis.
Rotation Heading
The objects rotation around the local y-axis.
Rotation Pitch
The objects rotation around the local x-axis.
Rotation Bank
The objects rotation around the local z-axis.
Scale X
The objects scale along the local x-axis.
Scale Y
The objects scale along the local y-axis.
Scale Z
The objects scale along the local z-axis.
Control the inheritance of the transforms from the parent.
Parameter Details Position
Toggle inheritance of the Position from the parent.
Rotation
Toggle inheritance of the Rotation from the parent.
Scale
Toggle inheritance of the Scale from the parent.
World Position Only
Inherit the world position from the parent only, rotation and scale will be ignored. Overrides above properties.
Inherit Time
Toggle inheritance of time from the parent.
These properties control the core behaviours of the node.
Parameter Details Input Skeleton Scale
Scale the size of the input skeleton.
Smoothing
How much smoothing is applied to the output skeletons motion.
Mirrored
Mirror the movements of the incoming mobcap data along the x axis.
Flip Z
Flip the Z axis of the skeleton, to match a model with a flipped z axis.
Tracking Confidence Threshold
Threshold for how confident the tracking data needs to be before applying to the skeleton rig.
The properties control the time at which the node is active. See Timeline for editing time segments.
Parameter Details Duration
Control the duration of the node’s time segment.
- Composition Duration : Use the length of the composition for the node’s time segment duration.
- Custom : Set a custom duration for the node’s time segment.
Node Time
The custom start and end time for the node.
Duration (Timecode)
The length of the node’s time segment (in time).
Duration (Frames)
The length of the node’s time segment (in frames).
Time Segment Enabled
Set whether the node’s time segment is enabled or not in the Timeline.
Inputs
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.
| Parameter | Details |
|---|---|
| Position X | The objects position along the local x-axis. |
| Position Y | The objects position along the local y-axis. |
| Position Z | The objects position along the local z-axis. |
| Rotation Heading | The objects rotation around the local y-axis. |
| Rotation Pitch | The objects rotation around the local x-axis. |
| Rotation Bank | The objects rotation around the local z-axis. |
| Scale X | The objects scale along the local x-axis. |
| Scale Y | The objects scale along the local y-axis. |
| Scale Z | The objects scale along the local z-axis. |
Control the inheritance of the transforms from the parent.
| Parameter | Details |
|---|---|
| Position | Toggle inheritance of the Position from the parent. |
| Rotation | Toggle inheritance of the Rotation from the parent. |
| Scale | Toggle inheritance of the Scale from the parent. |
| World Position Only | Inherit the world position from the parent only, rotation and scale will be ignored. Overrides above properties. |
| Inherit Time | Toggle inheritance of time from the parent. |
These properties control the core behaviours of the node.
| Parameter | Details |
|---|---|
| Input Skeleton Scale | Scale the size of the input skeleton. |
| Smoothing | How much smoothing is applied to the output skeletons motion. |
| Mirrored | Mirror the movements of the incoming mobcap data along the x axis. |
| Flip Z | Flip the Z axis of the skeleton, to match a model with a flipped z axis. |
| Tracking Confidence Threshold | Threshold for how confident the tracking data needs to be before applying to the skeleton rig. |
The properties control the time at which the node is active. See Timeline for editing time segments.
| Parameter | Details |
|---|---|
| Duration |
Control the duration of the node’s time segment.
|
| Node Time | The custom start and end time for the node. |
| Duration (Timecode) | The length of the node’s time segment (in time). |
| Duration (Frames) | The length of the node’s time segment (in frames). |
| Time Segment Enabled | Set whether the node’s time segment is enabled or not in the Timeline. |
| Name | Description | Typical Input |
|---|---|---|
| NVIDIA AR Video Body Tracker | The video stream from an NVIDIA AR body tracker to derive the skeleton from. | Video |
| Hierarchy Root | Connect the skeleton root node to drive the rest of the skeleton from. | 3D Scene |
| Bones Transform | The transforms of all skeleton bones, output as an array. Use with array-aware nodes to place objects on every bone at once. | Transform Array |
| Hips | The transform of the Hips joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| LeftHip | The transform of the left hip joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| RightHip | The transform of the right hip joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| Spine | The transform of the Spine joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| LeftUpLeg | The transform of the left thigh joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| RightUpLeg | The transform of the right thigh joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| Head | The transform of the Head joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| LeftLeg | The transform of the left shin joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| RightLeg | The transform of the right shin joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| LeftFoot | The transform of the left foot joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| RightFoot | The transform of the right foot joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| LeftToeBase | The transform of the left toe base joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| RightToeBase | The transform of the right toe base joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| LeftHeel | The transform of the left heel joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| RightHeel | The transform of the right heel joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| Nose | The transform of the nose face landmark, tracked by the connected face or body tracking system. | Null |
| RightEye | The transform of the right eye face landmark, tracked by the connected face or body tracking system. | Null |
| LeftEye | The transform of the left eye face landmark, tracked by the connected face or body tracking system. | Null |
| RightEar | The transform of the right ear face landmark, tracked by the connected face or body tracking system. | Null |
| LeftEar | The transform of the left ear face landmark, tracked by the connected face or body tracking system. | Null |
| LeftShoulder | The transform of the left shoulder joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| RightShoulder | The transform of the right shoulder joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| LeftArm | The transform of the left upper arm joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| RightArm | The transform of the right upper arm joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| LeftForeArm | The transform of the left forearm joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| RightForeArm | The transform of the right forearm joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| LeftHand | The transform of the left hand joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| RightHand | The transform of the right hand joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| LeftMiddleTip | The transform of the left middle fingertip joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| RightMiddleTip | The transform of the right middle fingertip joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| RightIndexKnuckle | The transform of the right index knuckle joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| LeftIndexKnuckle | The transform of the left index knuckle joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| RightThumbTip | The transform of the right thumb tip joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| LeftThumbTip | The transform of the left thumb tip joint, driven by the connected mocap or body tracking system. Connect child nodes here to make them follow that bone. | Null |
| Transform Modifiers | Apply the transforms of another node to this node. | Null |
| Target Node | Modifiy the rotations of the node to always direct the z axis towards the input. | Null |
| Local Transform Override | Apply the transforms of another node to this node, relative to its parent. | Null |
| Parameter Value Array | Used to set the parameters of the node using an array. | Parameter Array |
