I send him a PM before I knew about his cancer treatment, but he never replied.
A gesture of encouragement is the least we can do. I am sure no one would object . Please do so, Gaieus.
I have only tried SimLab Composer, as you can see above, and it shows up as two separate models with two different materials. The difference wasnยดt that visible in a render, but I havenยดt really spent too much time tweaking the settings.