light_relief
Arguments:
- _ambient_light,_specular_lightness,_specular_size,_darkness,_light_smoothness,_xl,_yl,_zl,_zscale,_opacity_is_heightmap={ 0 | 1 }
Description:
Apply relief light to selected images.
Default values(s) :
ambient_light=0.3,
specular_lightness=0.5,
specular_size=0.2,
darkness=0,
xl=0.2,
yl=zl=0.5,
zscale=1,
opacity=1 and
opacity_is_heightmap=0.
Example of use:
$ gmic
image.jpg blur 2 light_relief 0.3,4,0.1,0

Command:
image.jpg blur 2 light_relief 0.3,4,0.1,0
G'MIC is an open-source software distributed under the
CeCILL free software licenses (LGPL-like and/or
GPL-compatible).
Copyrights (C) Since July 2008,
David Tschumperlé - GREYC UMR CNRS 6072, Image Team.