Re: [Openexr-devel] Introduction and CTL/ICC question

[Kai-Uwe Behrmann]

Am 09.03.05, 10:44 -0800 schrieb Drew Hess:

> (except to say that there is a lot of work going on right now to
> figure out how to make ICC profiles work in a "digital cinema" world),

That would be great.

> It depends on what you mean by "reasonable performance," but on an
> NV30-class GPU, you can get ~20fps playback on HD-resolution 16-bit FP
> RGBA frames using 3 full 1x65536 LUTs; that is, one LUT for each color
> channel (R, G, B) that can transform any 16-bit half value to any
> other 16-bit half value.

Yes, thats reasonable I think. For one dimensional LUTs isnt the 
XF86VidModeSetGammaRamp sufficient? OpenGL applications seems to been 
affected by this ramps.

regards
Kai-Uwe Behrmann
                                + development for color management 
                                + imaging / panoramas
                                + email: address@hidden
                                + http://www.behrmann.name