more about → this discovery later. it’s basically a 3D scene with nothing but a pipe and several lights and cameras. you switch them on and off. i created mainly superellipse objects for these test renderings. each image took about 15 minutes to render using → arnold in → maya 2018.
test rendering with 32bitstudio intro light and some “super” objects
details from the above arnold rendering
second test rendering, same light
more or less the same objects, soft diffuse light setting
same scene, different light setup
another lighting setting for the same scene
detail from the picture above. took 19 minutes to render.