Blackmagicdesign Micro Converter SDI to HDMI 3G Installation And Operation Manual page 39

Processing menu
‚ 33 Point 3D LUT
Your Mini Converter SDI to HDMI 6G supports .cube LUT files that can be created using
DaVinci Resolve software, or other color correction software that can export .cube files.
You can load 2 separate LUTs by clicking on the 'load' button for each LUT slot,
selecting the desired .cube file from your computer, and clicking 'OK'. Click 'save' to
confirm your settings. The LUT filename will appear next to each 'load' button so you
know which LUT is being used for LUT 1 or LUT 2.
‚ What is a 3D LUT?
A 3D LUT, or '3D Lookup Table', is a file containing table of values that are used to
modify the video colorspace to a new set of color values in a 3D cube space.
The color cube contains all the variations between the mix of each primary color,
defined within three x, y, z spatial dimensions. This means the RGB channels in the
SDI input video can be remapped to any other RGB output color in the HDMI video
output. This is very powerful as it means any color can be mapped to any other color so
you can perform very precise color adjustments for calibrating displays, or loading log
gamma curves for display when working with different types of raw camera files on set
where you want to see linear gamma.
To show how powerful 3D LUTs can be, one of the default LUTs loaded can convert
your input video to black and white. This shows that all the input RGB colors are
remapped via the 3D LUT to black and white RGB output values via the HDMI output.
You can create your own 3D LUTs and upload them via the admin software and DaVinci
Resolve even allows you to convert a color grade setting to a 3D LUT that you can then
upload to your Mini Converter SDI to HDMI 6G. You can output the 3D LUT on the SDI
video loop output so you could even use your Mini Converter as a dedicated 3D LUT
color processor even if you don't use the HDMI output!
For more information on how to create a 3D LUT .cube file, refer to the
DaVinci Resolve manual which you can download from the Blackmagic Design
website at www.blackmagicdesign.com/support.
‚ Clip Video Output to Legal Levels
This checkbox controls clipping of your SDI input to ensure that it stays within HDMI
legal levels and should be kept on by default.
Output Levels menu
This menu allows you to adjust the gain on the audio output. You can adjust audio levels
independently per channel, or together by clicking the 'link' icon next to their sliders. To reset
all audio levels back to 0 dB click the 'reset' button at the top of the 'output levels' menu. The
'audio' tab for Mini Converter SDI to HDMI 6G contains the following settings.
Blackmagic Mini Converters 39