Jacob J Holiday writes:
In this Blender tutorial we'll look at how we can composite a CG object behind some real glass in our live-action footage. We'll also dive into fundamental render & compositing principles that will hopefully prepare you to tackle other challenging VFX shots!
A key to understanding how to add CG to live-action footage is learning how to break up a render to extract key elements like the shadows, reflections, and refractions. As such, this video will introduce you to the three ways to control scene breakup in Blender Cycles: object visibility, collection visibility, and view layer visibility (render passes). I've created this free infographic which should help you understand how these three domains of control interact with each other: https://www.patreon.com/posts/cheat-sheet-for-34986302
Please leave any questions or comments on this article or in the video. Happy Blending!