OpenEXR and External Mattes

You can create multi-channel OpenEXR files (multiple channels embedded in the OpenEXR file) that are displayed as multi-channel clips in Lustre. You can also use OpenEXR files with a matte / multimattes folder structure to automatically generate a multi-channel clip. When working with multi-channel OpenEXR files with an external matte / multimatte folder, you must always manually resync the cut / grade to have access to the matte channels. To do this:

  1. Import your multi-channel OpenEXR clip.
    2. Note: At this stage, only the embedded RGB mattes are available.
  2. Save your cut/grade.
  3. Press Shift on the keyboard and load your cut or your grade.

All embedded and external mattes are now available.

Parent topic: Multi-Channel Clip Management