Slime wrote:
> 
> The idea is that "always_sample off" would apply to the mosaic preview as
> well as the final render, so that the mosaic preview could be used without
> affecting radiosity - for preview purposes.

always_sample off just sets nearest_count to 1 for the final pass so by 
using explicitly nearest_count 1 you set always_sample off for the 
pretrace as well.

> I understand that mosaic preview and radiosity pretrace share the same code,
> and I'm saying, they shouldn't! (Well, it's not so much a matter of "don't
> share code" as it is "separate the two procedures"; I recognize the
> importance of avoiding duplicating code.) The fact that POV-Ray considers
> these two things as one and the same is - although not technically
> "incorrect" - annoying at times.

As a matter of fact both do not share the same code.  The radiosity 
pretrace differs in some aspects.  But still they essentially do quite 
similar things.

Christoph

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