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V64 Release Notes

Retired Support


Weight Simulation of Held Objects: We've added the ability to create heavy feeling objects which actually weigh down your avatar's hands when held and can overshoot with momentum when swung. This is done by adding in world resistance to objects. By enabling 'Weight Simulation When Held' on a grabbable and physics enabled object you can create heavier feeling objects, tools and weapons. You can increase or decrease the strength of your hand by adjusting the hand joint's spring stiffness and damping values. You can also use the new Override Mass option (which is usually determined by the object's scale and physics material) combined with adjusting the object's gravity strength to better tune the behavior of a heavy held object.


Editable Center Of Mass: We've also added the ability to edit a physics object's center of mass. This will let you further fine tune the feeling of holding and swinging a heavy object e.g. to create a top heavy hammer.


Handedness Data OnGrab and OnRelease: You can now tell which hand grabbed or released an object by checking the 'isRight' boolean on the new onGrab and onRelease event code blocks. This more easily lets you script feedback like haptics on the hand which is holding an object without needing to check which hand is closest to the object.


Time Code Block pilot: We're piloting a new block to enable time-based mechanics with a small group of creators. You can change the color of the sky based on the time of day, or have a door be unlocked only during certain hours. You may see some worlds that use these over the next few weeks. We hope to learn and get feedback about these code blocks so we can refine and release them soon.

Bug Fixes

The following bugs have been resolved. Thanks for all of your reports of these issues in Uservoice! We appreciate your reports and feedback. Please let us know if you are experiencing other issues by reporting these in UserVoice. (

  • On some occasions, the join button will not function for some people. If the person selects the join button on a user in the menu, nothing will happen. There is no error message or anything to indicate that there is an issue.
  • Setting physics materials no longer available 
  • Horizon unable to run on headset through PC via LINK