Set Up Your Project for HDR Mastering

To properly work in HDR, you must properly configure your project and application preferences.

You must configure:

• Project settings: Set your project to use 23.976p, 24p, 25p, or 29.97p and an appropriate OpenColorIO config, such as the ACES config.
• Tools & TL FX preferences: Set default HDR modes and Mastering Display
• Colour Management preferences: Ensure the Video Preview Device and Graphics Monitor Displays match your monitor setup.
• Video Monitoring preferences: If you plan on using an eCMU use 23.976p, 24p, 25p, or 29.97p (progressive raster). If not, select a rate compatible with your deliverables.

Project Settings

When starting an HDR project, you must create a Flame project that uses the following settings:

• Progressive frame rate. Interlaced and progressive segmentation are not supported in this workflow.
• Frames per seconds between 23.976 and 29.97 if you are using an eCMU. If not, any rate compatible with your deliverables will do.

Also, colour management is at the core of an HDR project. All media must be tagged correctly, and you will also need view transforms appropriate for HDR work. You may either use your own OCIO config for this or use the provided OCIO ACES config.

Tools & Timeline Effects Preferences

In the Preferences, you define the default settings for the Tools and Timeline FX:

• Dolby Vision algorithm: Select the Dolby Vision algorithm. The version to use is usually specified by your customer.

• Mastering Output: Select how the image is output on the mastering display.

  1. iCMU: You are connecting to the mastering display using the AJA or Blackmagic Design video card and using the internal Content Mapping Unit to do the metadata processing.
  2. eCMU: You are connecting to the mastering display through an external Content Mapping Unit provided by Dolby.
  3. HDMI Tunneling: You are connecting to a television compatible with Dolby Vision technology through HDMI, using an AJA device. This output is limited to HDTV timings (1920x1080, 23.98 to 30 fps). Blackmagic Design devices are not supported.

• Mastering Display: The default mastering display to use. The list of displays is taken from the configuration file displayed in the Dolby Vision Config field below.

• Dolby Vision Configuration file: The Mastering and Target Displays available in the HDR FX are part of the Dolby Vision configuration file. This configuration file is distributed with Flame Family products. From time to time Dolby Laboratories® release updated configuration files.

  To load a new configuration file:

  1. Open the Preferences > Tools/TL FX.

  2. Click DolbyVision Config > Browse and select the updated configuration file.

     Note: If in the HDR FX the Mastering Display and Target Display boxes are empty, the configuration file is missing. You must load one or you cannot work with the HDR FX. Load the configuration through the HDR FX Setup menu or the Preferences.

Colour Management Preferences

Ideally, you have an HDR display that is set up to either Rec.2100 PQ or ST-2084 P3-D65, but it is not strictly necessary for it to match your Dolby Mastering or Target Displays. Flame’s colour management converts when necessary. For example, Flame is able to simulate an SDR Dolby Target Display on an HDR monitor, giving you various options for reviewing your work. Then set your scopes monitoring colour space based on what you want to monitor. Typically this is either be based on your Dolby Mastering Display or one of your Dolby Target Displays.