Refractions

My love for contraptions comes from my childhood. As a kid, I loved drawing huge overly complicated machineries instead of the classic house with the blue sky.
After 30 years, this is the same principle, done in Cinema 4d and Vray, testing the flicker free GI, prepass, glass texture and low render times.
The same project with the standard engine in C4D was taking more than 1 hour a frame, in Vray was 10 minutes.