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when i discovered that the patterns in povray are the intersection of a
surface with the pattern, i started getting ideas of rendering patterns
without the intersection, and defining part of the 0 to 1 range as solid and
part as not. dents with a fairly low torbulence could be interesting, for
instance. when i discovered media, i was overjoyed, but then i realized
that it's used to simulate particles, not solid objects with definite
surfaces. i've tried to get the effect i'm looking for with media, and i've
gotten it to block light, but i've had no luck with contoured shading,
although i haven't experimented with lighting much. in any case, i expect
it would be much faster if there were a way to do this specifically. no
checking for densities and adjusting the color accordingly along the ray's
entire path inside the media, just the border between solid and not. so
here's my question. since i don't have the skills to make this, has anybody
else done it? does anyone else plan to?
thanks
Michael
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Sounds a lot like an isosurface to me...
Of course, the isosurface is still a surface, not a solid object. Why
would you need more than that? Are you trying to do something like
varying ior through the body of the object?
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Chris Huff wrote:
>
> Sounds a lot like an isosurface to me...
> Of course, the isosurface is still a surface, not a solid object.
within Povray, a "solid object" is a surface with a well defined
inside/outside; so, the isosurfaces are "solid objects", i.e. they
respond well to CSG.
Fabien.
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Yes, I know that, I meant an object which isn't represented by a surface
with an inside and outside, but by it's "volume".(I can't think of a
better word right now.) At least, that is what I think Michael was
talking about.
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okay. sorry about the ambiguous word usage - i meant the kind Fabien
described, a surface with a well defined inside/outside. although varying
ior could be really interesting...in any case, i'll check out isosurfaces,
thanks a lot for the tip.
Michael
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