> I duplicated chanels available in previous implementation of
post_processing
ok.
I don't know if it'd be easy to implement but it could be a plus to know
which object is intersected to allow postprocessing on limited part of the
output. Something like
sphere { ... object_id 1 }
box { ... object_id 2 }
f_output_iobject_id : return 1 if intersection is on the sphere, 2 for the
box..
M
