The Displacement node is also missing in Poser. There may be a few others that I've overlooked. In terms of glass, don't forget refraction and how thickness can play a role in how it interacts with light. Bagginsbill has covered many topics concerning both Firefly and Superfly with examples of overcoming supposed impossible renders. Unfortunately, many of those discussions have faded into the internet void because they were posted at RDNA before its demise. You can still find many posts here at Rendo if you search deep enough or use Google.