Author Topic: Shadow casting (3D polyline)  (Read 1194 times)

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Eycki

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Shadow casting (3D polyline)
« on: May 03, 2012, 01:05:52 PM »
Hello, I saw it with some 3rd party plug-in.  And I would like to create a similar feature in my program.
I guess I will need to set time intervals (e.g. 15 mins) and read the azimuth and altitude change of the sun to get an accumulated view of a complete day.
But how am I going to cast from my obstacles on my surface(solid) underneath.  Somehow we will need to get the boundery of the shadow and create a 3D polyline where it hits the surface.

Anybody ideas?