SunTools, a new Plugin for SketchUp is available now.
- SunPATH: visualization (month and year)
- SunPOS: Sun Position for a date and time
- SunVIEW: Axonometric views from the Sun
- SunPENETRATION: Analyze Sun Penetration/Access in any specific analysis point.
Several features are work in progress or yet to be implemented. I think this is a very promising visulisation tool that helps understand local climate conditions (and is also a similar way Ecotect presents this info)
The plug-in can be downloaded after registration from: http://tx.technion.ac.il/~arrguedi/SunTools/download.html