The Visine bottle.  It is a simple product example, but the plastic material it is made out of, known as HDPE,  has proven to be one of the trickiest materials to reproduce realistically in CG.  High-Density Polyethylene is used in a huge variety of products, so it should be no surprise that this has come up over and over in CG production... especially for those of us that do product visualizations regularly.  I will explain what makes it difficult and cover the many solutions I have tried before finally landing one that looks spot on. Read more