Hi, has anyone figured out how to make certain elements in ArchiCAD invisible to the camera, but still cast shadows?
I want to do an ArchiCAD sun study using Octane engine, where from a camera view looking down on the whole building, the roof of the building is invisible so the daylight & shadows cast by walls and windows can be seen, without any daylight getting through the invisible roof.
I saw a reference elsewhere to an option in Octane standalone to make objects invisible to camera - but that does not seem to help in the plugin. I need to use the plugin rather than standalone, so that the ArchiCAD sun study tool can overlay time of day and date information on each frame.
As far as I can tell, the only ArchiCAD model attributes accessible to the plugin are surface materials?