MoltenVR Preview 0.3.3

7-day free preview. Play PCVR games on an Apple Silicon Mac, streamed to any ALVR headset.

Download MoltenVR-Preview-v0.3.3.zip, unzip, drag MoltenVR.app to /Applications, open it.

New in 0.3.3: Stability & Tracking Fixes

Runtime updates now actually reach your games. Bottles kept a private copy of the
OpenXR runtime from the day they were set up, silently missing every fix shipped since —
including 0.3.2's Vulkan and FOV improvements. The app now refreshes it at every launch,
so this release's fixes (and all future ones) apply without re-registering anything.
Reprojection wobble fixed. Frames are now paired with the exact head pose they were
rendered with (atomically, in shared memory) instead of a racy timestamp file — no more
image swimming or judder that pumps with head motion. Applies to all games: OpenXR,
Vulkan zero-copy, and Vivecraft.
Logs no longer eat your disk. ALVR's event log could grow tens of GB over long
sessions (28GB observed). The bridge now caps its logs at 512MB, checked every 5 minutes.
Vivecraft: height/FBT calibration no longer crashes Minecraft. Body-tracker input
paths were misreported as controllers, making Vivecraft think full-body trackers existed
and crash during calibration.
Cleaner game shutdown. The runtime now implements the OpenXR exit handshake, so games
(and translation layers like OpenComposite) quit promptly instead of hanging on close.

Legacy OpenVR titles via OpenComposite — already proven in-house with OpenVR Benchmark
running end-to-end on the MoltenVR runtime.