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The Dolby Vision group of settings also exposes menus for choosing the version of Dolby Vision you want to use, what kind of Master Display you’re using, and whether or not to use an eCMU (assuming you possess the option). Finally, turning Dolby Vision on also enables the Dolby Vision palette and controls in the Color page, which are described in greater detail later in this chapter.
To master with Dolby Vision in DaVinci Resolve using the built-in iCMU, you still need a more specific hardware setup than the average grading and finishing workstation, consisting of the following equipment:
— Your DaVinci Resolve grading workstation, outputting via either a DeckLink 8K Pro or DeckLink 4K Extreme 12G video interface
— A mastering display capable of outputting HDR nit levels suitable for the deliverable you’re required to produce
Simultaneous Master and Target Display Output for Dolby Vision
When mastering HDR and trimming versions for more limited displays, it’s extremely useful to be able to evaluate your HDR grade and SDR trim pass side-by-side. It’s possible to output both the Master Display output and the Target Display output simultaneously when you’re grading with either Dolby Vision or HDR10+ enabled.
Necessary Hardware
To work in this manner, you must have the following equipment:
— Your DaVinci Resolve grading workstation must output via a DeckLink 8K Pro or DeckLink 4K Extreme 12G.
— Your Mastering Display must be capable of HDR nit levels suitable for the deliverable you’re required to produce.
— A display that can be set to output calibrated SDR, probably using the BT.709 gamut
Enabling Simultaneous Monitoring
When you set up your display hardware, the HDR Master Display must be connected to output A, and the Target Display must be connected to output B of whichever BMD video output device you’re using. Then, you need to turn on the “Use dual outputs on SDI” checkbox in the Master Settings of the Project Settings. At this point, assuming all of your connections are compatible with one another, you should see an HDR image output to your HDR display, and a trimmed image output to your
SDR display.
External Content Mapping Unit (eCMU)
for Dolby Vision
DaVinci Resolve supports the use of a Dolby External Content Mapping Unit (eCMU) for studios doing more intensive HDR mastering work, as it lets you monitor and adjust an HDR display simultaneously to an SDR display for side-by-side trimming at high resolutions via hardware. The eCMU also has the ability to preview Dolby Vision on a consumer display in real time via HDMI tunneling to view directly what the audience will see at home.