On June 27, 2005 05:40 pm, Curtis L. Olson wrote:
> Yes, that's a tough one ... think about what happens when the sun is low
> in the sky ... an object that casts a shadow on the current view could
> be *way* outside the view frustum.  I don't really understand how
> shadows work, but you'd almost have to do a complete rerendering
> (ssgCullandDraw) of the world from the sun's perspective to get this
> right ... I'm guessing that may be a bit expensive???
>
> Curt.
May be a history of the shadows can be kept, so the object that casts the 
shadow is not drawn, the shadow will still stay for a while?

Ampere

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