v1.7.3

mrv2 and vmrv2 are open source professional players and review tools for VFX, animation and computer graphics for Windows, Linux and macOS. You can build them from source or download prebuilt binaries.

Binaries are available for multiple operating systems and CPU architectures. Be sure to download the correct one for your system, and check all release assets—GitHub often hides part of the list.

If you're unsure which download you need, use:

Guided Downloads

Two versions are available:

mrv2 with OpenGL backend (free and donationware) vmrv2 with Vulkan backend (free and donationware)

It has NOT been tested on Windows aarch64 (beta testers wanted).

Unlocking Features

To unlock donationware features, open:

Help->Unlock Features.

The same license works for both mrv2 and vmrv2, so you can have both installed. An internet connection is required for license activation.

Without a donation license, the following features are unavailable:

Annotations (Solo+)
Python (Standard+)
Editing (Edit+)
Voice and Link Annotations (Pro)
Unlimited WebRTC Reviews (Pro)

The free version still includes:

Tone-mapping (OpenGL) and HDR (Vulkan)
OpenEXR layer switching
Saving Images and Movies with Audio
Limited WebRTC Reviews (2 artists for 30 minutes)

ChangeLog

• UI: Fixed tooltip of "Advance forward one frame" button in all languages.
• UI: Fixed "Window/Preferences" not showing up in Japanese due to weird gettext bug.

• UI: You can now easily drag a clip to the timeline view to create a new .otio EDL timeline, without having to go first to the Playlist Panel.

• Core/Windows: Fixed a skipping of current and parent directories for FileInfoWin32.cpp.

• Core: Fixed a crash on the OpenEXR reader when reading a corrupt/truncated file.
• Core: Fixed and added tlRender's unit tests.
• Core: Fixed Thumbnail crashes on file requester on Linux.
• Core: Fixed loading of image sequences command-line from the current directory.
• Core: Fixed potential hanging of thumbnail generator on Vulkan backend.
• Core/macOS: Fixed a crash on start-up on OpenGL backend.
• Core: OpenTimelineIO clips now tonemap each clip found if it is a movie, an HDR movie, a bt709 or an sRGB image, all will get tonemapped correctly on the Vulkan backend. Of course dissolves from one format of image to another one will not work.
• Core: Saving OpenTimelineIO timelines with audio now works.
• Core: Saving clips or .otio timelines in the Vulkan backend turns off tonemapping so that BT709 and similar clips will write their data intact, not in HDR.

• Core: Fixed and added tlRender's unit tests.

• Build: Documented Vulkan compilation on Linux.