[Bf-compositor] Apply LUT Node in compositor.

[tamerlan311]

https://gitorious.org/blenderprojects/blender-applylut-node/commit/3b21c7482d7ca5a9555be428a4d3ac694b7ac811

This is actual version of color space transform node, build and work with
blender 2.69 . It seemed to me that you are interested in this code.

But I do not agree that the direct use of the LUT is not justified.
LUT profiles is not only a monumental things such as standardized color
space or classic camera emulation.
This is one of the ways to quickly and easily export of color transform
settings from any other program (via ociolutimage).
Like this case -
http://www.liftgammagain.com/forum/index.php?threads/infrared-photography-look.1452/#post-8818

2013/11/5 Troy Sobotka <troy.sobotka at gmail.com>

> > On Tue, Nov 5, 2013 at 8:32 AM, tamerlan311 <tamerlan311 at gmail.com>
> wrote:
> >> 1) Without this patch https://gist.github.com/sobotka/5418323(colorspase
> >> transform node), color transformation work globaly and apply only to
> result
> >> picture.
> >
> > I agree that an OCIO color transform bake node is a much needed node.
> > Haven't looked at this patch yet.
>
> I should note that the patch you quoted (one I hacked on ages ago
> based off of Lukas Tonne's work, unfortunately does not agnostically
> apply the transform against the data, which is what we need.
>
> We need a blind OCIO transform node that modifies the data precisely
> at the point in the node tree, not the flagged colorspace of the
> image.
>
> With respect,
> TJS
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