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Op 25/10/2019 om 01:06 schreef Bald Eagle:
> "Bald Eagle" <cre### [at] netscape net> wrote:
>
>> #macro LetterSign (_Letter, _Color)
>
> blah blah blah...
>
>
>
> I was sifting through all the code in my head, and wanted to do some marking of
> the surface of my newly made prism thing.
> Indenting the surface with a difference had its merits, but I wanted good
> visibility without changing the geometry.
>
> So I thought that using the objects in an object pattern would be cool - but
> make it so that they went all the way through from one side to the other.
>
> Based upon my past lessons and experiments with functions, and the excellent
> advice of Mr. Pokorny, I figured I could plug the object pattern into a
> function, and use that as a pigment - but scale it infinitely along one axis.
>
Yes, that should be the way to do it. Using CSG objects, like I did, in
their simplest form, result of course in different "cut outs" related to
their position in space.
> A further experiment - just jotting this down here for the future - would be to
> do an intersection of 3 such orthogonal patterns, probably via an isosurface, to
> get an "object" like you might cut out of a block of wood marked on 3 faces -
> for further processing. Perhaps add in some of that smoothing that I worked
> on...
>
Yes.
>
> Anyway, here's a scene showing the infinitely scaled object pattern, to produce
> a silhouette.
>
> The view is from the top, of horizontal slices, and then the sides are 2 boxes
> sliced through x-y and rotated to face up, showing the effect.
>
[snip]
Yes.
--
Thomas
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