ACT-3D has released Lumion 9, real-time rendering software for arch-viz.
The developers promise “photorealistic environments faster than ever before” with the photorealistic sky, rain, and grass:
39 Real Skies and their pre-configured Sky Light settings
Customizable 3D Grass materials
Atmospheric Rain and Snow
122 highly realistic new materials in Lumion 9 Pro
634 new HD objects, including furniture, people and vehicles, with a total of 5259 objects in the content library
And also: LiveSync for Rhino 6, updated OpenStreetMap, automatic file recovery, save groups, intuitive object placement with hotkeys and some other UX features.
More information on Lumion website