Copying rendering techniques is one of the most challenging and revealing ways for, 3D artists to test themselves and further their abilities.
Copying the 3D artwork of the masters are something every 3D artist can relate to. Copying is a form of inquiry that can bring significant understanding to an artist. And the practice is not just for beginners; even master 3D artists have returned to copying for their own edification.
The practice of copying drawings dates as far back as the 14th century and has long been considered one of the best ways to learn.