VectorfieldGeo

Allows the visualization of a 3D LUT displayable in the 3D viewer with input clip controls to make it easier to see the interior of a cube.  Since the output of the node is a normal 3D object multiple cubes can be merged together in the same scene to visualize before/after transformations, overlapped to see intersections, or even rendered.

The mix control is an attempt to allow transparency of the geometry, but this currently acts like an on/off control due to an OpenGL display bug.

TODO:

* Add colorspace controls to allow other color codings than RGB.

* Get mix working.

* Add boolean input options to better visualize intersections

* Mode to display grey axis as separate geometry

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.