Am 11.03.2011 00:50, schrieb stbenge:

> IME, the best (not to mention the most accessible) way to do this is to
> use a proximity pattern, which is basically just an object pigment
> blurred in 3D space. The advantage of using proximity patterns is that
> you can obtain *outside*edge* data as well as inside edge data.
>
> Any other AO-like ray tracing/casting method would require some new
> routines to be added into POV's rendering core... but I could be wrong.
> (anything can be done if you're willing to wait through a long render)

Trevor's idea was actually the path I followed with my earlier attempt 
at a proximity pattern. Code-wise it was not much of a change, as 
radiosity already has everything that's needed, even including some 
optimization. However, it could not do outside edges, and the approach 
also didn't allow for choosing only a subset of objects to affect the 
pattern - it would always use the complete scene.

My next attempt would probably be based on the "blurred object" 
approach; syntax-wise it might even be a simple extension to the object 
pattern. But don't hold your breath.

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