The online “manual” is of little help and videos are for the previous versions.
Camera exposure has some effect but is also not intuitive. Getting the results in their videos looks like a 2week deep dive. The interaction of Sun and Sky is unintelligible.
The Asset Editor is perhaps the most convoluted, non intuitive interface I have seen. While the GH components can render simple scenes directly, for compositing outdoor scenes, the environment must be set up from the asset editor within Rhino, and the GH geometry fed into that.
The GH components DO NOT have control of the scene assets. VRay is not a tool for new users! so many undisclosed concepts: Are there any options other than VRay that will render good quality outdoor scenes (sky, sun, water) from GH without baking?