Le 2021-11-17 à 16:06, Kenneth a écrit :

> -----
> BTW, this 'multiple-ior' effect gave me an idea-- which I am experimenting
> with-- about creating what looks like *variable* ior within an object, that
> changes along its length or depth, etc. The basic idea is to pre-slice the
> object into *many* very thin box sections, each with a slightly increasing ior
> value, then re-combine the slices to look like the original solid object. Of
> course, I am running into coincident-surface problems with all of those slice
> recombinations... but I think that's a temporary problem, until I figure out how
> best to re-position them. (Should they be separated by tiny 'air' gaps-- or
> should they be slightly embedded into each other?) Anyway, my experiments look
> promising so far, if a bit...odd ;-)
> 
> 

Try clipped_by to make your slices. That way, there will be no internal 
boundaries.

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