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Le 2022-04-30 à 13:25, Kenneth a écrit :
>
> There are two aspects of this problem that initially threw me off: The docs
> about bezier_patches repeatedly refer to 'triangles', as if the patch or model
> is converted to a smooth-triangle mesh 'under the hood'. At least, that's what I
> took to be the meaning there... which is probably a misconception on my part(?).
> The other odd thing during my render trials is that POV-ray *seems* to be
> evaluating my bicubic_patch model 'successfully' in the same way it treats the
> Bunny model-- that is, the render likewise slows down while evaluating the media
> container shape, and the render times are about identical. Except that no
> media-effect is produced. This behavior made me blame the problem simply on the
> 'missing inside_vector.'
The patch IS converted into smooth triangles, but, as an union of
triangles, not as a mesh.
The various triangles do not have any inside, they are just infinitely
thin surfaces.
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