Visualization

[#1]

Hello, I've seen this in other 3rd party software.  A projection of the shadow on a 3D surface, even of a complete day.

This was done with a 3D polyline, casting every 15 minutes and putting a vertex on the surface. 

I want an accumulation of the shadows of a complete day.  And I would like to present it in a 2D drawing or 3D wireframe.  Anyone has an idea?

[#2]

Can't animate using autocad...have to export to other software. From there its a matter of adding stuff called "key frames" or something similar to that.

Alternative would be to set the sun's location on autocad and render a still frame. Move the time slightly, and render again...so on... then piecing the images together with video software.

Autocad's MACRO recorder might allow rendering the still frames to be automatic, though I haven't tried.