The LUT3D element specifies a 3D LUT to apply.
This attribute is optional. If it is not specified, the default is "trilinear".
<ProcessList id="b5b90615-573b-4959-a838-f35e0e588ac2" version="1.2">
<LUT3D inBitDepth="32f" interpolation="tetrahedral" outBitDepth="32f">
<Array dim="48 48 48 3">
0.000669299 0.000704187 0.000766901
0.001848371 0.001297010 0.010368987
0.002599007 0.001144927 0.023227118
<!-- 48*48*48-3 lines omitted -->
</Array>
</LUT3D>
</ProcessList>