Sun light and material rendering

any supplement for sun light rendierng in MAC?:sob:

. I m doing material and light my model in rhino. I done my wall finish (importing rmtl file ) in mac rhino. However, I found there is not any sunlight there and try to switch it to the other pc computer. But all of materials are gone. Would it have any block for material so there I could save for the file to other computer .

Alternative should I stay to use my mac but the problem is I could not the following icon for rendering into one color tone in mac like Window??:frowning: