mrv2 Files

mrv2 and vmrv2 are open source professional players and review tools for VFX, animation and computer graphics for Windows, Linux and macOS. You can choose to compile from source or get binaries.

mrv2 ships now in two compiled versions:

• mrv2 with OpenGL backend (free up to version 1.4.0 - donationware afterwards)
• vmrv2 with Vulkan backend (donationware)

It also ships for many more architectures, so be careful to download the correct one.

Difference between OpenGL and Vulkan

Vulkan is a new open source API, compared to OpenGL that it might get deprecated on some platforms like macOS. It supports true HDR (High Dynamic Range), it is about 20% to 50% faster than the OpenGL version but it does not support OpenUSD.

OpenGL's main benefit at this point is that it supports OpenUSD and works better on older CPUs (macOS Intel and Linux X11 backend).

Prices for binaries

Donationware prices of binary licenses through PayPal:

I use the email information to contact you privately. I don't sell your information, as I don't have access to it, except for your email, which I use to contact you.

• u$ 50 for a node-lock license for one year.
• u$ 150 for a node-lock license to own.

The prices are cumulative. If you donate, say u$10 in 5 months, you can access the node-lock license for one year.

License works for both mrv2 and vmrv2 (you can have both installed). You need to have an internet connection for the license system.

ChangeLog

• Made Cache Read Ahead default to 5.0 seconds.
• Fixed some Vulkan validation errors that got through in the original v1.4.4 release.
• Fixed a FLTK Wayland crash when tooltips were shown and the mouse pointer was moved inside them.
• Upgraded OpenEXR to v3.4.3.
• Upgraded OpenJPH to v0.25.0.
• Tiny speed up in OpenUSD playback.
• Removed an old "lighting=1/0" message when opening the USD Panel in mrv2.
• Added enableSceneLighting and enableSceneMaterials as properties that the USD Panel will save on exit.
• Removed error on opening vmrv2 with the USD panel open.
• Made HUD less prominent as it was somewhat unreadable and making Vulkan skip frames too.
• Fixed OpenEXR's tile reading code.
• Fixed Vulkan's Data Window and Display Window.
• Fixed OpenGL's line size consistency on OpenEXR's Data/Display Windows.
• Fixed Wayland's Desktop Scaling under the Vulkan backend for vmrv2.
• Fixed Vulkan's playback slow down when mouse entered the title bar.
• Fixed file associations for mrv2 and vmrv2 on Linux.
• Fixed removal of icons on Linux on DEB and RPM uninstall.
• Fixed caching when loading a file and autoPlayback was on.
• Added Progress Report when caching files upon loading.
• Fixed exec_command on Windows platforms to properly use UTF-8.
• Fixed exec_command with pipes using threads to capture output.
• Fixed licensing issue on newer Windows using legacy wmic which is no longer present on newer Windows distros.
• Made all paths on Windows use forward slashes instead of backwards slashes or a mix of both.
• Made session file paths use forward slashes on Windows.
• Made file associations work on macOS in re-release 11/9/2025 8:00 PM (-3 UTC)