Supporting 1D luts which are different per channel


Malcolm Humphreys <malcolmh...@...>
 

Hi,

I started looking at adding csp lut format to ocio.

A csp lut allows a 1D prelut with a different number of points per channel. The
current Lut1DOp only supports applying the same 1D lut to all channels.

I'm wondering if this is something you were thinking of supporting in ocio?

--snip--
Access LUT data via a gamma lookup
Red channel has gamma 2.0
Green channel has gamma 3.0 but also has fewer points
Blue channel has gamma 2.0 but also has fewer points
11
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
0.0 0.01 0.04 0.09 0.16 0.25 0.36 0.49 0.64 0.81 1.0
6
0.0 0.2 0.4 0.6 0.8 1.0
0.0 0.008 0.064 0.216 0.512 1.0
6
0.0 0.2 0.4 0.6 0.8 1.0
0.0 0.04 0.16 0.36 0.64 1.0
--snip--

.malcolm

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