Dappled and Textured Lighting in Blender: 4 Simple Methods (for Cycles)
Gleb Alexandrov writes:
In this 20-minute tutorial, we dive into four easy-to-follow techniques for setting up textured lighting in Blender that will make your scenes come alive. Discover light blocking, shadow textures, light projection, and more to create intricate patterns and evoke emotions in your Cycles renders.

This is perfect—couldn’t figure out how to do this yesterday. So helpful. Highly recommend watching.
Simple but fabulous summary of the simple ways to add sophisticated lighting to renders.