mrv2 v1.4.5 opengl

This beta release of v1.4.5 corresponds to: 5 of November of 2025 at 08:24:47 Buenos Aires, Argentina (-0300 UTC/GMT).

It does not support NDI® on any platform.

It works on Windows 10+, Ubuntu 22.04 LTS+, macOS 15 (amd64) and macOS M1+ (arm64). It may work (untested) on Windows 11 ARM64 and Linux ARM64.

It may contain bugs, new untested features and more.

Enjoy!

Donation Prices after v1.4.0

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).

Demo Versions

The OpenGL releases at:

https://sourceforge.net/projects/mrv2/files/beta/opengl

The Vulkan releases at:

https://sourceforge.net/projects/mrv2/files/beta/vulkan

directory are versions for you to evaluate mrv2 or vmrv2 before a donation and report bugs or performance issues. Currently, when run as demo these versions don't have:

   - Annotations
   - A/B Comparisons
   - OpenEXR Layer switching
   - NDI support
   - Allow more than 5 minutes of use.

ChangeLog

• Fixed some Vulkan validation errors that got through in the original v1.4.4 release.
• Fixed a FLTK Wayland crash when tooltips where 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.

Notes on installation

• On macOS you install it by opening the .dmg file, and dragging the mrv2 icon to the Applications directory. If there's already a mrv2 version, we recommend you overwrite it. The macOS application is currently not notarized, so when you launch it you will not be able to run it as macOS will warn you that the file is not secure as it was downloaded from internet. To avoid that, you need to open the Apple Logo->Settings->Privacy and Security and go to Security and allow "Opening Anyway". Alternatively, you can do it from the Terminal, by:

  sudo xattr -rd com.apple.quarantine /Applications/mrv2.app/

• Windows and Chrome, like macOS, also protect you from installing files from the Internet. When you first download it with Chrome it may warn you that it is not an usual archive to be downloaded. Make sure to click on the right up arrow menu to Save it anyway. You cannot open the .exe from Chrome directly. You will need to open Windows Explorer and go to the Downloads directory. You should then run it from there. Then Windows will popup a Blue box telling you Windows SmartScreen prevented the start of an unknown application and that you can place your PC at risk. Click on the More Information text and a Button that says Run anyway or similar should appear. Click on it and follow the standard instructions to any Windows installer. One note about the Windows install. When asked if you want to add mrv2 to your PATH, it is recommended to answer No to it, as it avoids DLLs conflicts with other applications that use common libraries like FFmpeg or OpenUSD.

• On Linux, in order to install the .rpm or .deb packages requires your user to have sudo permissions.

On Debian (Ubuntu, etc) systems, you would install with:

  sudo dpkg -i mrv2-opengl-Linux-amd64.deb

On Fedora, you would install it with:

  sudo rpm -i mrv2-opengl-Linux-amd64.rpm

Once you install it, you can run mrv2 by just typing mrv2 in the shell, as a symlink to the executable is placed in /usr/bin. The installers will also associate file extensions and install an icon for easy starting up in the Desktop icon of the user that installed it. For running mrv2 with the icon, you need to select it and use the right mouse button to open the menu and choose Allow Launch.

If you lack sudo permissions in your organization, you should download the .tar.gz file and you can uncompress it with:

  tar -xf mrv2-opengl-Linux-amd64.tar.gz

That will create a folder in the directory you uncompress it from. You can then run mrv2 by using the mrv2.sh shell script in the bin/ subdirectory.