By default the colors assigned to pm3d objects are not dependent on orientation
or viewing angle. This state corresponds to set pm3d nolighting.
The command set pm3d lighting selects a simple lighting model consisting of a
single fixed source of illumination contributing 50% of the overall lighting.
The strength of this light relative to the ambient illumination can be adjusted
by set pm3d lighting primary fraction. Inclusion of specular highlighting
can be adjusted by setting a fractional contribution:
set pm3d lighting primary 0.50 specular 0.0 # no highlights
set pm3d lighting primary 0.50 specular 0.6 # strong highlights
Build Daemon
2017-10-25