Thanks a lot for sharing! It's hard to find useful info on lighting.
Wow, that's great. Have to try this out!
Guillaume J has presented a demo of Houdini Gaia Scatter. It’s a toolset made of Digital Assets driven by a python UI directly in Houdini. The toolkit lets you paint objects on a geometry according to settings and rules. Combine the paint flexibility with the power of procedural rules system.
It is not the final version and much more is yet to come – LOD system based on the camera position, new display mode to display placeholder geometries, new layer type to paint dynamic objects, etc.
The source code and digital assets are available on his github.