Hi,
I’ve been play around with Toucan, which seems to have real potential but a long way to go…
Anyway, whenever I enable caustic and or diffuse photons in a spotlight, Rhino crashes when I try to render.
Is this a known problem, or is it something in my file?
thanks
Peter
this isn’t a direct response to your exact question but it’s the gist of things at the moment:
or–
if something is broken in the current mac rhino renderer, it likely won’t be addressed since the renderer is changing behind the scenes right now…
probably wait until the version release notes say something like “hey, new renderer!!” until you really start being concerned with parts of it that may be broken 
Thanks Jeff
Intriguing… 
cheers p