Mac Rhino Render, no reflections

I’ve been using Mac Rhino for six months now, and I’m impressed with what I’ve been able to achieve so far, which has mainly been for 3D printing.

I’ve recently been dabbling with the Rhino Render options, hoping to be able to model the effect of reflectors on LED lighting, but with no success. I don’t appear to be able get a material to bounce light from its surface.

Things I’ve tried, adjusting the materials Reflectivity, and under Advanced Settings, changing the Emission Color. In Render Properties, Reflectivity (Maximum number of bounces) is still set at 12.

Have I missed something, is this something it’s not meant to be capable of, or is it my hardware (Mac mini with Intel Iris 1536 MB graphics). I don’t seem to have any other problems with graphics.

I have trawled the forums several times for help with the Render part of Rhino, but without much luck, and the Windows version looks very different.

Any help would be appreciated.


The rendering tool in Mac Rhino does support reflections but does not support bouncing illumination.

As I understand from other users, rendering your model in Maxwell might be a better option.


thanks for swift response. Purchasing Maxwell just for this occasional use is not really an option, but thanks for stopping me from trying to spot what I was doing wrong.

If it’s not too complex an answer (I have no previous experience of using render software) what does the, Reflection (Maximum number of bounces) in the Render Properties relate to?


Just that, the reflection of the image only, not bouncing illumination like it works in the real world. It controls how many times the reflection is propagated along to the next facet it hits.
If I have my bounces set to 2, and I have 3 or more reflective surfaces the image could bounce off, it quits calculating after 2 bounces.


thanks for the reply, which now makes sense. For a while I was staring at the reflections of light sources in glass surfaces trying to figure out why I could see them, but not see them on objects I would then place at the view point.

Again, thanks for the help.