Predefined Optical Target Configurations

Introduction

On this page we show a number of predefined marker setups for optical marker target. These files have been created using our automatic calibration algorithm or data from the manufacturer and are a very close approximation of an ideal configuration.

For each setup we provide a corresponding body calibration file that can be loaded into ART DTrack. After loading the file, please do a re-calibration (using the recalibration functionality of DTrack’s body setup dialog). The body should now be accurately adjusted to provide a perfectly realistic VR impression to the user.

Open

• Load body calibration file and start re-calibration.

Open

• Move target in front of ART cameras to perform body calibration.

• The resulting calibration will be very close to the original body file while accommodating for any slight shifts of the marker arrangement from the base configuration.

ART Marker Targets for VIVE Pro

Target 2

Target 3

Target 4

Target 5

ART Marker Targets for Varjo XR-3

Target 1 (V561901)

Target 3 (V561903)

Tokiwa Marker Target for Varjo XR-3/VR-3

LPMHL-VAXR3

Marker Targets for Varjo XR-4

LP-RESEARCH

LPMHL-VAXR4

LPMHL-VAXR4-B

ART

For customers using our marker holder and ART. Please zip the appropriate files together with the necessary installers. The file matches the product name, i.e. the first file is the “first” layout, the second file is the “second” layout (layout B). The user should do a recalibration after loading these files onto their controller.

Below are the Body Files from ART for their marker holders for the XR-4

Optitrack

For Optitrack these files come in two variants: for Motive 2 (names end in .motive)and Motive 3 (names end in .csv). For optimal tracking the rigid bodies need to be refined (a function in the Builder pane of Optitrack, documentation here: Builder Pane | EXTERNAL Optitrack Documentation)

Former LP-RESEARCH Marker Target (pre-2022) for VIVE Pro

HMD Marker Arrangement

Configuration File

Download link: Arrangement_1_VivePro_BodyFile.txt

Hand Controller Marker Arrangement

Configuration File

Download link: Arrangement_1_HandController_BodyFile.txt