Hi Jeong, Thanks for your question! In this 101 course, the basic use of Vray is covered. All functions and settings covered from Vray 2 in this course are also in Vray 3.4. They might be located in a different place. New features like Vray Swarm, V-Ray Subsurface Scattering material, V-Ray Car Paint material, V-Ray Stochastic Flakes, V-Ray Curvature map, V-ray dirt map etc. are not covered in this 101. If you can't find a setting or option, search it here: https://docs.chaosgroup.com/display/VRAYRHINO/V-Ray+for+Rhino+Help If you still can't find it, let me know and I'll see what we can do. Thanks and good luck! Arie