Re: [ocs-dev] Got Luts?
"Nathaniel Hoffman" <na...@...>
Jeremy,
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There are two LUT formats I know of that are used in game development. One is a 2D image format (any lossless image format will do - we've used BMP, TGA and PNG) with a 2D representation of the LUT where the planes along the 3rd axis have been placed next to each other. So a 32x32x32 LUT would turn into a 1024x32 2D image. A common usage is for an identity LUT in this format to be placed next to an ungraded screenshot, both manipulated in Photoshop or some other color manipulation package, and then the colorized LUT is extracted. The other format is a DDS (Microsoft DirectDraw Surface) file with a 3D texture in it, typically uncompressed. This is usually loaded directly into the game engine. These are both a bit ad-hoc and not really standardized, so I don't know if they are relevant for OCS. If they are, let me know and I can try to work up something more like an actual spec for each of these. Thanks, Naty Hello! |
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