clipka <ano### [at] anonymousorg> wrote:
> Warp schrieb:
> >   My guess is that specifying inside_vector makes the rendering of the
> > mesh slower in some situations (probably eg. when there's media or fog
> > around), which is why it's turned off by default.

> I don't think so. Media would only be computed inside a mesh if the 
> "hollow" keyword is also used anyway.

  Except that meshes have no inside and thus no insideness is computed for
them. (Except if inside_vector is specified, of course.)

> Anyway, the speed issue could be mitigated by allowing to explicitly 
> specify "inside_vector <0,0,0>" (or, being equivalent yet more talktive, 
> "inside_vector no") to disable inside tests.

  That might break existing scenes, especially those which use *open* meshes
and assume that meshes have no inside.

-- 
                                                          - Warp

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