It's mapping from Alexa logC to the viewing space which is rec709 srgb.
On Tue, Mar 25, 2014 at 8:32 AM, Andy Jones <[email protected]> wrote: > Some thoughts/guesses: > > From the command line you posted, it seems like the lut you have is trying > to go from linear to your viewing space, correct? > > Is it possible your issues are stemming from > > a) linear luts coming from linear space generally only get applied to the > data between 0 and 1 (because, where do you stop?) > > b) it takes a lot of values to encode linear space linearly, and you may > be seeing significant quantization. The difference between the lut in xsi > and in nuke could possibly be due to different interpolation modes between > the two programs. Maybe Nuke is doing a better job approximating a curved > response between data points in the lut? I'm just speculating. > > I'm not sure why the lut would look overexposed in xsi. Maybe it's the > same quantization thing as b? > > Can you confirm what colorspaces the original 3dl is mapping between? > > >
