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I did some research and began writing a cloth generating program that
will output to POV includes, ready to pass to CleanPOV. I still have a
lot of work to do, mainly in the collision-detection department, but I
have that covered, I just have to convert physical blah-blah-blah to C.
Today, I finally got it to compile, thanks to the kind people at
comp.graphics.algorithms. Since it can finally compile, I'm 50% done.
Don't expect this very soon, though, since I'm only a beginner
programmer (constantly refering to my tutorial docs). =)
Oh, yeah. The good thing is that this cloth is different from my friend
Hugo Elias's cloth. His is crappy. This one is near-perfect. It behaves
like cloth and not like rubber, at 0 extra expense in computing time. As
an example, to provide equal stiffness HE's cloth takes 9 mins of
calculations, while this one takes 1 min, and looks more realistic. But,
I don't want to ruin the surprise. Just wait. It'll be here someday.
If anyone wants to make suggestions as to what variables they would like
to control, please write here. I plan on allowing the user to specify
the I and J size of the cloth, smooth or non-smooth triangles, and what
object to collide with (sphere, torus, cylinder, box, and perhaps even a
combination of 2 objects these).
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Sounds too cool to imagine. Wow, and object interaction huh? Mentioning
2 objects leans toward CSG doesn't it?
Sorry for the unbridled enthusiasm.
Anthony Bennett wrote:
>
> I did some research and began writing a cloth generating program that
> will output to POV includes, ready to pass to CleanPOV. I still have a
> lot of work to do, mainly in the collision-detection department, but I
> have that covered, I just have to convert physical blah-blah-blah to C.
> Today, I finally got it to compile, thanks to the kind people at
> comp.graphics.algorithms. Since it can finally compile, I'm 50% done.
> Don't expect this very soon, though, since I'm only a beginner
> programmer (constantly refering to my tutorial docs). =)
>
> Oh, yeah. The good thing is that this cloth is different from my friend
> Hugo Elias's cloth. His is crappy. This one is near-perfect. It behaves
> like cloth and not like rubber, at 0 extra expense in computing time. As
> an example, to provide equal stiffness HE's cloth takes 9 mins of
> calculations, while this one takes 1 min, and looks more realistic. But,
> I don't want to ruin the surprise. Just wait. It'll be here someday.
>
> If anyone wants to make suggestions as to what variables they would like
> to control, please write here. I plan on allowing the user to specify
> the I and J size of the cloth, smooth or non-smooth triangles, and what
> object to collide with (sphere, torus, cylinder, box, and perhaps even a
> combination of 2 objects these).
--
omniVERSE: beyond the universe
http://members.aol.com/inversez/homepage.htm
mailto:inv### [at] aol com?Subject=PoV-News
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> 2 objects leans toward CSG doesn't it?
Union is all I'm proposing... =)
> Sorry for the unbridled enthusiasm.
I forgive you. At least one person has answered. I guess people don't come by
here much.
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Anthony Bennett wrote:
>
> > 2 objects leans toward CSG doesn't it?
>
> Union is all I'm proposing... =)
>
> > Sorry for the unbridled enthusiasm.
>
> I forgive you. At least one person has answered. I guess people don't come by
> here much.
It's easier to get enthusiastic about something that IS instead
of something Might or Will be. There have been so many announcements
of up and coming wonder utilities that we get kind of numbed by
it. Of those that do get released a majority are marked as a "beta"
program ( meaning limited funcionality for now but I'll fix it in the
next release ) and the promises of improvement never materialize for
whatever reasons.
Midnight modeller is a good example of one that was going to be a
premier modeller for pov and simply disappered from the face of the
earth. After it's first crippled beta release of 4.0 for windows no
one has seen or heard the author and the earlier versions now go
unsupported. I think one of the main reasons that Moray is as popular
as it is today is due to the determination and hard work that Lutz
put into it and the fact the he activly maintains his software.
If this were not so it would be another average modeller with features
that are out of date and incompatible with Pov. Many reach a couple of
revision levels then the author gets board and moves on to something
else.
When you have an executable to work with let me know and I will get
excited than. In the mean time thank you for working on such an
ambitious project and I really hope you do make it to the public
release stage with a fully functional utility that extends the power
and features of Pov.
--
Ken Tyler
mailto://tylereng@pacbell.net
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I fully intend to make the best programs I can. Bug-free is what I am shooting for.
I can't just leave it in the air. And if I did, I would leave the source code for
others to improve and continue. It's meant to be a simple utility where you specify
one or two objects that will interact with a piece of cloth that falls from above
them. It is supposed to process until the cloth doesn't move any more. Then it
outputs the final result. OR it can optionally output iteration-by-iteration
(although 200+ files aren't nice). In essence I am making it because the other
cloth routine is too slow for my taste.
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>If anyone wants to make suggestions as to what variables they would like
>to control, please write here. I plan on allowing the user to specify
>the I and J size of the cloth, smooth or non-smooth triangles, and what
>object to collide with (sphere, torus, cylinder, box, and perhaps even a
>combination of 2 objects these).
Can you drape the cloth over a heightfield and
then compute a new heightfield from the cloth?
A lot of Leveller users have asked for ways
to smooth out contour-based heightfields (which
have a terraced look).
Ray
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> Can you drape the cloth over a heightfield and
> then compute a new heightfield from the cloth?
> A lot of Leveller users have asked for ways
> to smooth out contour-based heightfields (which
> have a terraced look).
I said it will collide with sphere, torus, and cylinder, never heightfield.
This is too hard for me. I've also never used Leveller, so I really don't
care about it, just regular POV. Maybe when I'm done, and the source is
released, someone can add this, but I definitely cannot. As I said, I'm a
beginner programmer.
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