mrViewer 3.4.3

mrViewer is a small, lightweight utility that can open images and play video files. It supports .BMP, .JPG, .PNG, .PSD, .MAP, .DPX, .MP4, .MPG, .MOV, .AVI, .DIVX, and .WMV file formats.

With mrViewer you can add files by simply dragging and dropping them into the main panel or you can use the browse button to locate your media. It comes with a couple of tools that allow you to specify the frame rate, play or stop the current video selection, skip to the start or end position of a clip, adjust the volume, alter the RGB value, and adjust the levels for gamma and exposure.

Key Features include:

• Flipbook player.
• HDRI viewer.
• Multichannel support in OpenEXR, .PSD, .MIFF and .TIFF formats.
• MultiView OpenEXR support.
• Video and Audio player.
• Network syncing support.
• Non-destructive EDL.
• Grease Pencil support.
• Multi Part EXR images.
• Deep OpenEXR images.
• Animated GIF support.
• Color Transformation Language support.
• ACES 1.0 support.
• Passive 3D Stereo Support (anaglyphs, side by side, interlaced, checkerboard).

We found mrViewer’s layout seemed to be a little cluttered and it is difficult to understand the functions easily. That having been said, there are however, tooltips for giving you some hints to help you along.

The app does have some good features though, such as support for hotkeys, which can be reassigned, and it also comes with viewable log files. It provides information on filenames, size, ratio aspect, gamma, format, memory, and compression. For images, you can analyze a histogram, and it has touchscreen editing support as well.

Overall, mrViewer has some useful features but we found the interface not that intuitive and slightly cumbersome.

- Bug fixed VR360 on network communication not always opening in the VR360 view.
- Bug fixed a dead lock of log window due to multiple threads accessing it when in stereo. The problem would show up in Linux, mainly.
- Bug fixed normalized pixel values when in some stereo mode,like Red/Cyan glasses.
- Allowed graphics cards with small textures display videos thru scaling down the original video.
- Bug fixed crash of switching to an empty reel when background image was active.
- Bug fixed background image being shifted by start frame when not in EDL mode.
- Bug fixed stereo of Z (depth) channels in stereo OpenEXRs with multipart files. Previously only one channel would be shown or multiple errors would show up if the deepest Z channel was chosen.
- Fixed a bug where background images would not appear once they were offset in the EDL.
- Fixed error reporting with frame number to report the actual frame, not one before.
- Improved synchronism of background images/movies with foreground sequences.
- Made looping not effect every image in a reel, only the foreground image.
- Made VR 360 dragging stop after a while. This makes it easier to control.
- Fixed stepping on background images when they are in the same reel as the foreground image.
- Fixed compositing of foreground images on background movies due to an overflow in calculations. Now the values are clamped to prevent the error, which showed up on Windows only.