v1.7.1

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 Remote Reviews (Pro+)

The free version still includes:

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

ChangeLog

• Installation: Simplified macOS installation a tad. Also fixed shebang issue with the installation.command script.

• UI: File->Recent menu now correctly displays the first frame of the sequence, instead of the frame that was used to load it with.

• UI: Fixed some flickering of Progress Report on Windows to not using Fl_Double_Window.
• UI: Made client side decoration on Linux Wayland use GNOME with Vulkan backend. The OpenGL backend must remain using the uglier Cairo decoration.
• UI: Fixed double repeated message about Solo upgrade when clicking on area selection.
• UI: Linux Wayland. Made tablet cursor hide the tooltips upon leaving the widget.

• UI: Linux Wayland. Made tablet cursor not allow flickering the tooltip (still somewhat buggy).

• Licensing: Removed a repeated message of floating licensing.

• WebRTC: It is now live. You can now connect two or more computers and share their media. On the free tier, only two computers can be connected and there's a limit of 30 minutes. On the Pro tier, there's no limit on the number of computers or time limit. Quick start:

  • Go to Preferences->WebRTC, enter the name of your studio. Use the same name on each computer you will hook up. Make sure it is unique and not easy to guess.
  • Go to Panel/WebRTC on one machine. Enter the name of a room longer than 6 characters. Click Connect.
  • Go to Panel/WebRTC on the other machine. Enter the same room name. Click connect.
  • If all went well, both machines will sync and you can synchronize what gets received/sent with the Sync menu.

• WebRTC: Added environment variable MRV2_WEBRTC_STUDIO that gets prepended to any room ID connection. This can be used to keep the connection secure.

• WebRTC: Added WebRTC panel to Preferences. Allows setting cache directory and whether to clean it at the start of mrv2.
• WebRTC: When connected and file is opened, if it does not exist locally, it will now transfer it (Pro+ version only).
• WebRTC: Made it read the environment variable MRV2_WEBRTC_STUDIO to prepend it to the room name and keep the connection secret.
• WebRTC: Made the transaction be atomic and cleanly close the data channel on abort or error.
• WebRTC: added -room command-line flag to start a WebRTC connection.
• WebRTC: Added Preferences->WebRTC to easily change settings. Note that environment variables take precedence over these settings and they are purposedly not shown to keep the connection confidential.

• WebRTC: Added support for transfering .otio files, with all the files referenced in them.

• Core: Made clips create textures of their size only to save memory when using smaller files.

• Core: Added support for .otio Spatial coordinates.
• Core: Fixed some Vulkan AMD/NVidia assumptions for comformancy with Vulkan 1.3.
• Core: Fixed Vulkan fatal errors when changing pixel ratio.
• Core: Fixed OpenGL NAN reporting when changing pixel ratio.
• Core: Fixed a crash upon exit with compare options and video playback.
• Core: Fixed the use of Fl::check in tlRender innards, as it was crashing WebRTC downloads.
• Core: Made the default Settings->Cache->Gigabytes use 1 / 3 of available memory instead of 1 / 2.
• Core: Bumped FLTK to v2.1.5.
• Core: Changed license server's domain so that it will be possible to move to a new VPS due price increases.
• Core: Added comments to License functions, as they were rather messy.