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Ok, I was wondering if there was a reasonably easy way to make palm trees
(well specifally the leaves) from povray primatives with csg, blobs or
whatever. Basically I want to hand code everything in the scene that I can
and am stuck on the palm leaves. Anyone have any ideas?
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"Wanderer On The Road" <non### [at] fakeaddress com> wrote in message
news:3c620e5c@news.povray.org...
> Ok, I was wondering if there was a reasonably easy way to make palm trees
> (well specifally the leaves) from povray primatives with csg, blobs or
> whatever. Basically I want to hand code everything in the scene that I can
> and am stuck on the palm leaves. Anyone have any ideas?
Not one of the more particularly "advanced" questions seen in this group.
Sure, CSG of spheres or cylinders in a #while loop could make palm fronds.
Just clip a section out then transform into place along a spine which could
also be simply a section of sphere or cylinder. Depends on how near you
expect to be looking at it but if from far enough away it wouldn't matter
how thin the parts are.
The most difficulty (but not too much so) would be aligning the individual
leaf segments along the spine. They are most always ellipses and not
perfect circled curve segments. Scaling would go the same way.
bob h
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Having thought on this more... spline() in the beta of 3.5 makes it very
easy for the CSG *leaves* to follow a path, which would be the spine of the
whole branch.
Hope I didn't sound too sarcastic before, BTW. I forgot to toss in a ;-)
or something.
If you're not understanding what I'm talking about maybe we could move this
to povray.general, except maybe it's too late for that if the answer for you
is going to require some math equations instead :-) (which I couldn't help
much with).
bob h
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"Wanderer On The Road" wrote:
> Ok, I was wondering if there was a reasonably easy
> way to make palm trees (well specifally the leaves)
> from povray primatives with csg, blobs or whatever.
There are many ways to do it. How about bicubic patches, using one for each
leave. They could be image_mapped using UV-mapping.
(BTW, I find this question advanced enough for this group.)
Rune
--
3D images and anims, include files, tutorials and more:
Rune's World: http://rsj.mobilixnet.dk (updated Jan 20)
POV-Ray Users: http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Webring: http://webring.povray.co.uk
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Search for the TomTree include file... it makes extremely realistic Palm
Trees.
See my post 'Palms' from 4th April 2001 in p.b.i
All the best,
Andy Cocker
"Wanderer On The Road" <non### [at] fakeaddresscom> wrote in message
news:3c620e5c@news.povray.org...
> Ok, I was wondering if there was a reasonably easy way to make palm trees
> (well specifally the leaves) from povray primatives with csg, blobs or
> whatever. Basically I want to hand code everything in the scene that I can
> and am stuck on the palm leaves. Anyone have any ideas?
>
>
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"Rune" <run### [at] mobilixnetdk> wrote in message
news:3c625b59$1@news.povray.org...
>
> (BTW, I find this question advanced enough for this group.)
All in the perspective. As you may have noticed I could figure it as both
simple or complex, like many things.
I made a palm tree rendering this morning to try it out using sphere
sections and spline() and sphere_sweep. I could do plenty more fixing on
it.
I'll post it at p.b.i., mainly because everyone else is posting all kinds of
great stuff and I'm falling so far behind lately. Got to prevent this crazy
rat race feeling somehow ;-)
bob h
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Wanderer On The Road <non### [at] fakeaddresscom> wrote:
: primatives
This word again... :)
--
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}// - Warp -
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bob h wrote:
>
> ...
> I'll post it at p.b.i., mainly because everyone else is posting all kinds of
> great stuff and I'm falling so far behind lately. Got to prevent this crazy
> rat race feeling somehow ;-)
>
> bob h
Heh, I just did the same thing. I'm gonna post my IRTC WIP when I get
this next character model fixed.
--
signature{
"Grey Knight" contact{ email "gre### [at] yahoocom" }
site_of_week{ url "http://digilander.iol.it/jrgpov" }
}
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If the palm trees have to look good, figure out some code to generate
meshes (you don't want to do them by hand!) The benefit of this is
that you can generate a few of these, and then copy them many times
very cheaply (memory-wize).
If the palm trees don't have to look good, use simple csg for the trunk,
and then paint some polygons with an image_map of a palm frond, and
use that for the foilage.
Regards,
John
--
ICQ: 46085459
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"bob h" <omn### [at] charternet> wrote in message
news:3c623df3@news.povray.org...
> "Wanderer On The Road" <non### [at] fakeaddresscom> wrote in message
> news:3c620e5c@news.povray.org...
> Not one of the more particularly "advanced" questions seen in this group.
Yeah well, I wasn't seeing an easy way to do it.
> Sure, CSG of spheres or cylinders in a #while loop could make palm fronds.
> Just clip a section out then transform into place along a spine which
could
> also be simply a section of sphere or cylinder. Depends on how near you
> expect to be looking at it but if from far enough away it wouldn't matter
> how thin the parts are.
> The most difficulty (but not too much so) would be aligning the individual
> leaf segments along the spine. They are most always ellipses and not
> perfect circled curve segments. Scaling would go the same way.
Interesting. I've tried to do some stuff with #while and failed. Before and
I'm interestid in this spline() function in 3.5 I'm assuming that it's
documented. Any good tutorials for that sort of thing? Oh and if it makes
any difference this will be appear in a painting with in the scene.
--
Wanderer On The Road
Many religions are the story of man trying to reach out to God
Christianity is the story of God trying to reach out to man.
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