User Manual

Rendering an Ordinary SDR Media File
If you want to export the SDR trim pass, then you can choose Dolby Vision from the Tone
Mapping drop-down menu in the Advanced Settings of the Render Settings list on the Deliver
page, and choose the 100-nit, BT.709, BT.1886, Full setting below. With this enabled, you can
output the SDR version of your program to any format you like.
The Tone Mapping setting in the Advanced Settings of the Render Settings list
Playing Dolby Vision at Home
On distribution, televisions that have licensed Dolby Vision use the base layer and
enhancement layer+metadata to determine how the HDR image should be rendered given each
display’s particular peak luminance capabilities. Distributors, for their part, need to provide a
minimum 10-bit signal to accommodate Dolby Vision’s wide range. As a result, DolbyVision
videos will look as they should on displays from100 nitsthrough1000 nits peak luminance and
above, scalingthe enhancement layer’s HDR-strength highlights to whatever peak luminance
level is possible on that display and recombining these highlights with the base layer, with no
unpredictable clipping.
SMPTE ST.2084 and HDR10
Many displaymanufacturers who have no interest in licensing Dolby Vision for inclusion in their
displays are instead going with the simpler method of engineering their displays to be
compatible with SMPTE ST.2084. It requires only a single stream for distribution, there are no
licensing fees, no special hardware is required to master for it (other than an HDR mastering
display), and there’s no special metadata to write or deal with.
Interestingly, SMPTE ST.2084 ratifies the “PQ” EOTF that was originally developed by Dolby,
and which is used by Dolby Vision, into a general standard that accommodates encoding HDR
at peak luminance values up to 10,000 cd/m2. This standard requires at minimum a 10-bit signal
for distribution, and the EOTF is mathematically described such that the video signal utilizes the
available code values of a 10-bit signal as efficiently as possible, while allowing for such a wide
range of luminance in the image.
SMPTE ST.2084 is also part of the “Ultra HD Premium” industry specification, which stipulates
that televisions bearing the Ultra HD Premium logo have the following capabilities:
 A minimum UHD resolution of 3840 x 2160
 A minimum gamut of 90% of P3
 A minimum dynamic range of either 0.05 nits black to 1000 nits peak luminance
(toaccommodate LCD displays), or 0.0005 nits black to 540 nits peak luminance
(toaccommodate OLED displays)
 Compatibility with SMPTE ST.2084
Chapter – 8 HDR Setup andGrading 252