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I wonder why one concept that is implemented in nearly every 3D raytracer
isn't implemented in POV-Ray - what I mean are splines. Well, they are
actually being used by prisms and lathes and so on, but it would be useful
if you could define a spline path and then, for example, move the camera (or
other objects) along it during an animation, or extrude some shapes along
this spline.
However, you would have to compute the points with an external program. Code
could be looking like this:
spline {
cubic, // spline type
4 // number of points
<Point1>, <Point2>, <Point3>, <Point4>
}
You also could do some other crazy things, for example rotate objects around
a spline (or actually, its tangent). There are certanly several other
things.
--Brad
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It's been done. SuperPatch.
--
Anthony L. Bennett
http://welcome.to/TonyB
Graphics rendered
by the Dreamachine.
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TonyB wrote:
>
> It's been done. SuperPatch.
>
> --
> Anthony L. Bennett
> http://welcome.to/TonyB
>
> Graphics rendered
> by the Dreamachine.
But not officialy it hasn't which is probably why he mentioned it.
--
Ken Tyler
mailto://tylereng@pacbell.net
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Isn't something like the spline includes by Chris Colefax (and there are others) a
POV-Ray script which counts as doing this already? Or I suppose you might mean a
actual
spline keyword to use them internal to POV, in which case I guess this is what was
mentioned would be implemented in a future SuperPatch. Altogether different.
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On Wed, 09 Jun 1999 18:06:51 -0500, Bob <inv### [at] aol com> wrote:
>Isn't something like the spline includes by Chris Colefax (and there are others) a
>POV-Ray script which counts as doing this already? Or I suppose you might mean a
actual
>spline keyword to use them internal to POV, in which case I guess this is what was
>mentioned would be implemented in a future SuperPatch. Altogether different.
Not in a future one; it's in the current one. Though if you don't
already have the current one you never will...
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I really need to run that SuperPatch more often then ;) or rather read the DOC for it.
I've just been using things I heard existed and doing a quick search for the feature
without reading through. I'm one of those slow to move along to the new stuff anyway.
Good thing I guess because I won't be d/l'ing the latest SP until tonight I guess and
I
saw about the "bugs"; sorry to hear about them, for your sake.
Ron Parker wrote:
>
> >mentioned would be implemented in a future SuperPatch.
>
> Not in a future one; it's in the current one. Though if you don't
> already have the current one you never will...
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On Thu, 10 Jun 1999 09:44:10 -0500, Bob wrote:
>I saw about the "bugs"; sorry to hear about them, for your sake.
These things happen. Not a really big deal. I feel more sorry
for the folks who spent all that time downloading a buggy version.
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On 10 Jun 1999 11:07:40 -0400, par### [at] fwicom (Ron Parker) wrote:
>I feel more sorry
>for the folks who spent all that time downloading a buggy version.
Nah, if nothing else those earlybirds helped you catch those worms
(bugs). Nothing like a POV-Ray user base to test a patched compile.
--
Alan
--------------------------------------------------------------------
http://www.povray.org - Home of the Persistence of Vision Ray Tracer
news.povray.org - where POV-Ray enthusiasts around the world can get
together to exchange ideas, information, and experiences with others
--------------------------------------------------------------------
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Ron, don't worry too much about those. We'll keep helping getting them
ferretted out.
Besides, in court today the government's software expert revealed that
in the code for Windows 98 that he looked at ( about 1/7 of the total),
he found 3,000 bugs marked by Microsoft programmers.
3,000
And that was just the ones marked in the code. Ouch.
Superpatch seems rock-solid by comparrison.
Alan Kong wrote:
> On 10 Jun 1999 11:07:40 -0400, par### [at] fwicom (Ron Parker) wrote:
>
> >I feel more sorry
> >for the folks who spent all that time downloading a buggy version.
>
> Nah, if nothing else those earlybirds helped you catch those worms
> (bugs). Nothing like a POV-Ray user base to test a patched compile.
>
> --
> Alan
> --------------------------------------------------------------------
> http://www.povray.org - Home of the Persistence of Vision Ray Tracer
> news.povray.org - where POV-Ray enthusiasts around the world can get
> together to exchange ideas, information, and experiences with others
> --------------------------------------------------------------------
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Bob <inv### [at] aolcom> writes:
> Isn't something like the spline includes by Chris Colefax (and there are
> others) a POV-Ray script which counts as doing this already? Or I suppose
> you might mean a actual spline keyword to use them internal to POV, in
> which case I guess this is what was mentioned would be implemented in a
> future SuperPatch. Altogether different.
He might also think of "sphere sweeps". They are the objects that you get,
when you sweep a sphere along a spline. Jochen Lippert implemented them
and as far as I know his code is also included in the superpatch.
Thomas
--
http://www.fmi.uni-konstanz.de/~willhalm
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