3D LUT
In the film industry, 3D LUTs (lookup tables) are used to calculate preview colors for a monitor or digital projector of how an image will be reproduced on the final film print. A 3D LUT is a 3D lattice of output color values. Each axis is one of the 3 input color components and the input color thus defines a point inside the lattice. Since the point may not be on a lattice point, the lattice values must be interpolated, most products use trilinear interpolation. [1]
Cubes may be of various sizes and bit depths. Often 17x17x17 cubes are used as 3D LUTs. The most common practice is to use RGB 10bit/component log images as the input to the 3D LUT. Output is usually RGB values that are to be placed unchanged into a display device's buffer.
Modern graphics cards have direct support for 3D LUTs, allowing entire HD images to be processed at 60fps or faster.
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[edit] See also
[edit] References
- ^ Selan, Jeremy (2004). "Using Lookup Tables to Accelerate Color Transformations" GPU Gems 2, Chapter 24. http://http.developer.nvidia.com/GPUGems2/gpugems2_chapter24.html ISBN 0-321-33559-7
- Using LUTs An introduction to 1D and 3D LUTs and their use.
[edit] External links
[edit] Some systems for 3D LUT Generation
- Cine-tal cineSpace 3D LUT generation software for film color management
- FilmLight Truelight color management system
- Light Illusion LightSpace CMS for full colour management.
[edit] Some systems supporting 3D LUTs
- Apple Shake compositing software
- ARRI ARRILASER Film rekorder, ARRICUBE Color Management System
- BARCO BARCO RHDM-P Series High-Definition Reference Monitor
- Assimilate SCRATCH color grading system
- Autodesk Media and Entertainment Flint, Flame, Inferno, Smoke, Fire, and Lustre, Composite
- Avid DS digital mastering system
- Blackmagic Design DaVinci Resolve
- CHROME Imaging MATRIX Color Correction and Dustbusting Solutions
- Cine-tal Cinemage monitor and eLuma LUT processor
- Digital Vision Film Master, Data Conform and all software products
- Digital Film Technology LUTher 3D LUT processor
- DVS Clipster digital mastering systems
- Eyeon Fusion compositing software
- FilmLight Baselight color grading system and Truelight LUT processor
- The Foundry Nuke compositing software
- Gamma and Density 3cP on-set color grading system
- Interactive Effects Piranha Cinema visual effects system and Piranha Player
- IRIDAS SpeedGrade and FrameCycler
- FotoKem nextLAB nextLAB Mobile
- OpenColorIO Open Source Color Management for visual-effects and animation
- Pandora Revolution and Pixi color grading systems
- Quantel color grading system
- Tcube FIG LUT processor
- TVLogic XVM-245W monitor
- YoYotta YoYo
