Nuke's Colour Selection Scheme

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In these last months I've had the opportunity to become more involved in compositing in Nuke. This involves a lot of working with colours. One of the things that had me curious for while was the sliders on the right side of the standard nuke colour picker. 


I am talking about the vertical sliders on the right of the image above. 
After investing some time in reading the Nuke documentation, I came to the appropriate page that indicates that this is the TMI colour scheme that allows the user to pick a colour by colour temperature. 

Nuke also allows for a more comprehensive colour picker by ctrl/cmd-clicking on the colour wheel icon (to the left of the "4" icon on the right of the image above). Nuke calls it the alternative colour picker. Activating it this way will create a floating colour picker panel that you can interact with.

In this panel, you can use the top buttons to toggle the visibility of the TMI, HSV and RGB colour schemes to work with whichever way that is more intuitive.

A search on the net pointed me to this very informative blog post by Stefan Ihringer entitled TMI Color Temperature Correction. I strongly suggest you visit and have a read. 

Stefan mentions that the TMI colour system stands for Temperature, Magenta/Green, Intensity. Temperature controls the gradual change of colour in the orange/blue spectrum as per how a black-body object heats up and changes colour as heat is applied to it.
Magenta shifts the colour in the magenta/green spectrum.
Intensity controls how bright the colour is.

Stefan has even written a macro to mirror this Nuke colour picking scheme in Fusion.




Location: Singapore

Comments

  1. 0timorioho_Omaha27 May 2022 at 15:26

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