Gerhard Fuernkranz wrote: > Paul Miller wrote: >> Graeme Gill wrote: >> >>>> Has anyone done any work with building a 3D LUT out of an lcms transform >>>> and then doing the conversion using a 3D texture lookup? >>>> >>> See "Using Lookup Tables to Accelerate Color Transformation" >>> by Jeremy Selan, GPU Gems 2 pp 381 Addison-Wesley for more details. >>> >>> Such an approach is used by many of the 3D animation studios >>> to do color managed previews of animation's. The example OpenEXR >>> viewer is such an instance, and the source code is available. >>> >> Yes, I've done that kind of stuff myself. I was just wondering if there >> were any recipes for getting the 3D LUT out of lcms. >> > > Some time ago I played a little bit with this kind stuff too. Attached > is a simple OpenGL program for viewing a ppm image (sRGB), doing the > color transformation to the supplied display profile with a GLSL shader. > The program uses LCMS to create the color transformation texture (device > link).
Wow - perfect! Thanks for sharing Gerhard. > > Regard, > Gerhard > > > > > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > > > ------------------------------------------------------------------------ > > _______________________________________________ > Lcms-user mailing list > Lcms-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/lcms-user -- Paul Miller | [EMAIL PROTECTED] | www.fxtech.com | Got Tivo? ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Lcms-user mailing list Lcms-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lcms-user
