Blender Addon - Vive tracker(Brekel OpenVR Recorder) to Auto rig pro toolkit v1.0.3

21 ratings

Blender Addon - Vive tracker(Brekel OpenVR Recorder) to Auto rig pro toolkit v1.0.3

Preset function was added in v1.0.3.

Presets allow you to save the names of the trackers and bones you match and reuse later.

The body and fingers use separate presets.

Before you save or load the Preset, you must save the blend file you are working on.

If you do not save, an error occurs when using the preset function.

Usage is as follows.

1. Match each bone and tracker as before.

2. Press save_preset.

3. Press Apply_preset when working on the next motion.

It should be noted that it does not work if the name of the tracker is different or the number is wrong.

Presets are saved as txt files in the addon path, and you need to be careful because they are overwritten each time you save them

Blender Addon - Vive tracker(Brekel OpenVR Recorder) to Auto rig pro toolkit v1.0.2

In v2, elbow and knee pin bone options were added. This function prevents ik popping (arm or leg bouncing) caused by the difference in body length between the actor and the rig.

To use this option, you need to set Pinning to 1.0 on the elbows and knees in Auto rig pro's rig.

And select the elbow bone in Elbow_pin_L and the elbow tracker in Elbow_pin_L_target.

Because this option fixes the elbows and knees to the position of the corresponding tracker, if the rig and the actor's body length differ too much, the limbs will be overextended.

A simple tool for baking tracker motion data from Brekel OpenVR Recorder into a humanoid rig based on Blender Auto-Rig Pro.

This is the first Addon I made.

Serpens 3 - I made it using Visual Scripting Addon Creator. The script file used for development is attached, so anyone who wants to use it can customize it at any time.

Serpens 3 - Visual Scripting Addon Creator - Blender Market

Requirement - Home of the Blender project - Free and Open 3D Creation Software

Auto-Rig Pro - Blender Market

Brekel OpenVR Recorder - Brekel » Brekel

Installed in the same way as a regular Blender Addon. Version 3.0 or higher is recommended.

The usage is as follows.

Required number of trackers: Head x1 (HMD), Chest x1, Hips x1, Knees x2, Feet x2, Hands x2 (Controller), Elbow x2.

1. Save the FBX file recorded by Brekel OpenVR Recorder.

2. Import the motion FBX file into Blender

3. Add Auto-Rig Pro Humanoid Rig.

4. Align the tracker's position to the humanoid rig

5. Use the "Edit Reference Bone" function to adjust the humanoid Rig's body length to match the tracker (knee, elbow, shoulder, etc.). The more it matches your real body, the better.

6. Select the bone of the rig that matches the tracker.

!Select a bone or tracker, then click the appropriate (Left Hand, Right Foot, etc.) button under Addon in the N-Panel. Be sure to set the bone first.!

1) Select bone -> 2) Select tracker Selecting a tracker automatically adds a constraint to the bone.

(optional) hand bone selection -> Brekel hand selection. (left and right)

7. Play the animation to confirm. Correct the motion of the corresponding tracker in case of jittering or tracking failure.

8. Select Humanoid Rig -> Select All. All bones to which the constraint is applied are selected. -> Bake selected

9. Select Humanoid Rig -> Disable All. All constraints are disabled. Click Enable All to re-enable Constraints.

10. Export after confirming motion. Use by retargeting to the desired character.

Auto-Rig Pro rig setting.

Humanoid rig's limbs must be set to IK. Set "pole parent" to 0 on the IK pole target.(knee, elbow)

"Head Lock" of the head bone is set to 0.

In order to avoid the problem of 'popping' of the IK of the limbs, it is recommended to use the 'soft ik' function of Autirig-pro.

Floor contact is a tool that automatically adds a constraint that prevents the Rig's toes and feet from penetrating the ground.

1. Click Import FloorContact Rig. Adjusted FloorContact_Rig to fit humanoid Rig's feet. (heel, toe joint, tip of toe)

If you click Disable Limit, you can adjust the bone position of FloorContact_Rig. After adjustment, click Enable Limit. If you click Disable Floor_Offset, you can adjust the height of the bone of FloorContact_Rig. When finished, click Enable Floor_Offset.

2. Select the imported floor -> click Set Floor

3. Unhide Rig's Deformation version.

4. After selecting the foot IK bone, foot, and toe bones respectively, click the Addon button to set.

5. Play the animation to make sure Rig's feet and toes don't pierce the floor.

For more accurate ground contact, I recommend watching this video -

I want this!

Addon install file(ZIP), Serpens 3 script file


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Blender Addon - Vive tracker(Brekel OpenVR Recorder) to Auto rig pro toolkit v1.0.3

21 ratings
I want this!