Wrong Thumb Placement for Meta Avatars after Update to v38 and v40
Hello everyone, we have been using the Meta Avatars in our projects for the last few months now and after putting in some work we were quite happy with the results. However since we recently tried to update from v35.2 to v38 or now even to v40 we noticed a weird displacement in the Avatars thumbs. The thumbs or joints of the thumbs seem to be shifted towards the palm of the hand somehow ( see images for comparison) . It does not hinder the grab functionality - but it makes all hand grab poses look wrong, which renders it unusable for us. I could not find any indication where this is coming from or any way to fix this. Does anyone have an idea or a tip on how this could be solved? Additional Information: Unity 6.2 All-in-One-SDK v78 XR-Plugin: Open XR We are using an OVRCameraRig with Hands and ControllerDrivenHands. Hand Skeleton in OVR Manager: Open XR Skeleton
v77 Grab Hand Pose Translation/Rotation
Hi, I'm using v77 of the Interaction SDK in Unreal 5.5.4 for hand tracking, and am having issues with a HandGrabPose not following the grab location/rotation when using rotation and location transformers. I am using an object setup with multiple grabbable pieces. My blueprint hierarchy is essentially: Mesh -- GrabbableComponent1 -- SubMesh ---- GrabbableComponent2 ------ HandGrabPose GrabTransformer1 (for main mesh, with free transformer) GrabTransformer2 (for sub mesh, with translate constraint applied) The actual interactions of the meshes work without issue. I can grab the main mesh, and grab the submesh to move it with its translation applied. My HandGrabPose component has the following properties set: The initial posing is fine and the hand will move to the intended pose position, but as the submesh is moved, the hand pose stays in the same location rather than following the submesh as I would like. Looking at the source for hand poses, I can see that the hand pose override is set via a call in OculusInteractionPrebuilts/Rig/IsdkHandPoseRigModifier to HandMeshComponent->SetHandPoseOverride once the grab state changes to Selected, but as this is only called upon initial grab, the required RootPoseOffset does not get updated upon translation/rotation of the grabbed component. This is not an issue for components with only one grabbable where the entire object will be moved and thus the offset remains constant, but for my case with sub-objects the pose offset obviously does change but the hand remains in its initial location. Has anyone run into a similar issue and could recommend a solution or workaround? I'd be happy to provide more information on my setup if needed. Thanks!custom hand mesh in Interaction SDK
I followed the instructions about how to add custom hand meshes within the Interaction SDK. So i tried it with the Unreal XR hand meshes, since I have many grab animations and other hand meshes that use its skeleton. Hand and finger tracking is working fine, but there is a strange distortion with the hand mesh. It seem to be caused by skin weighting, but I couldn't find any issue so far. In addition, the Unreal XR hand has the pose of the Oculus hand. Here is the my modified left UnrealXR hand, with the renamed bones and the bones added for finger tips, according to the documentation. If anyone has an idea what is causing that issue or has a solution, please let me know.I've been trying for days to use the UnrealXR hand meshes with finger tracking and I'm about to go crazy.
