Comments

videoITguy wrote on 9/30/2014, 10:01 AM
VegasPro does not allude to LUT - however professional cineform does come with a color grading scheme that uses LUT and works inside of Vegas.

I suggest you just forget built-in color match and go for the real thing in a new plug-in called rematch by visionefx company.

see this thread for details
http://www.sonycreativesoftware.com/forums/ShowMessage.asp?MessageID=906287&Replies=9
wwjd wrote on 9/30/2014, 2:07 PM
cool info videoITguy.

was wondering if a LUT type thing can be created inside Vegas? Aren't the COLOR CURVES presets a very basic LUT?
videoITguy wrote on 9/30/2014, 3:04 PM
well, that, wwjd, is probably a bit too crude of comparison - so I would say sort of.
By the way if you want to really go further with Sony - download Catalyst Browse - this back to color space and what VegasPro attempts so crudely to do. The best LUT reference to use would be inside Cineform - but likely way beyond your needs.
farss wrote on 9/30/2014, 3:39 PM
[I]"Aren't the COLOR CURVES presets a very basic LUT? "[/I]

They can be represented by 2D LUTs but not everything that could be in a 2D LUT can be represented by the CCs. The function (curve) in the CC FX is constrained by Bezier functions, there's no constraints at all in what can be put into a Look Up Table.

LUTs are a two edged sword, all possible input values can be mapped to all possible output values which means there's no constraints. The down side is one can have sets of values in a LUT that would yield functions with negative slopes etc.

The other problem with LUTs is they can easily become unmanageably large. In an 8 bit 3D space (8x8x8) the size is manageable however building an array to handle all the possible values in a floating point 3D space would be impossible For this reason mostly LUTs use interpolation. Also simply typing in all the possible values would soon drive us nuts so various tools exist to simplify / make more human friendly, the task.

Bob.