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clipka <ano### [at] anonymous org> wrote:
>
> Simply evaluating an image-based pigment will not create an additional
> reference.
>...
> POV-Ray doesn't cache image files, so you should be fine with what
> you're trying to do, even without any extra precautions.
That's all good news; thanks.
(Just to add a note: This particular usage...
#declare MY_IMAGE = pigment{image_map{...}}
does seem to cache the image_map for use later, without an apparent(?) increase
in memory when it is called multiple times in a scene...which is quite useful!
But it's a different construct from what we are talking about here.)
>
> There are a few exceptions to this:
> ...
> - Some data will be cached because it is expected to re-occur later, and
> is sufficiently complicated to process that it would be a waste to do it
> all over again.
>
> An example for the latter would be font files...
Just as a matter of curiosity: Is there a method within the SDL of purging even
such 'persistent' things from memory? I suspect not.
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