The MayaFur.inc file I have been working on is ready, and can be downloaded
here:

http://www.getinfo.net/douge/downloads.htm

Basically, it is a set of macros for POV that mimics the way fur is done in
Maya.  More info can be found in povray.news-submissions, but I wanted to
include a sample render here for those that haven't seen it.


--
Doug Eichenberg
www.getinfo.net/douge
dou### [at] nlsnet

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Attachments:
Download 'scraggleexample.jpg' (106 KB)

Preview of image 'scraggleexample.jpg'

dou### [at] nlsnet news:3f48d44d@news.povray.org

> The MayaFur.inc file I have been working on is ready, and can be
> downloaded here:
> http://www.getinfo.net/douge/downloads.htm
> Basically, it is a set of macros for POV that mimics the way fur is
> done in Maya.  More info can be found in povray.news-submissions, but
> I wanted to include a sample render here for those that haven't seen
> it. 

Very nice effect :) It is a mesh? Or union of splines? 
Does this fur take long to render?


-- 
#macro g(U,V)(.4*abs(sin(9*sqrt(pow(x-U,2)+pow(y-V,2))))*pow(1-min(1,(sqrt(
pow(x-U,2)+pow(y-V,2))*.3)),2)+.9)#end#macro p(c)#if(c>1)#local l=mod(c,100
);g(2*div(l,10)-8,2*mod(l,10)-8)*p(div(c,100))#else 1#end#end light_source{
y 2}sphere{z*20 9pigment{function{p(26252423)*p(36455644)*p(66656463)}}}//M

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Bravo. Great stuff. Is that demo scene included in the zip archive?
thanks very much,
Dennis
"Doug Eichenberg" <dou### [at] nlsnet> wrote in message
news:3f48d44d@news.povray.org...
> The MayaFur.inc file I have been working on is ready, and can be
downloaded
> here:
>
> http://www.getinfo.net/douge/downloads.htm
>
> Basically, it is a set of macros for POV that mimics the way fur is done
in
> Maya.  More info can be found in povray.news-submissions, but I wanted to
> include a sample render here for those that haven't seen it.
>
>
> --
> Doug Eichenberg
> www.getinfo.net/douge
> dou### [at] nlsnet
>
>
>

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The fur itself is a mesh of smooth triangles.  The length of the rendering
time depends on what options you use... if you use triangle texture
interpolation, have 100,000+ hairs, and use radiosity, it can take quite a
while (I ran one for 3 days with TTI, radiosity, and 400,000+ hairs).  With
a standard POV texture it renders at the same speed as many of the grass
macros (like Gilles makegrass).

--
Doug Eichenberg
www.getinfo.net/douge
dou### [at] nlsnet

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I included a cat as the demo scene... more challenging to get the fur
coverage right.

--
Doug Eichenberg
www.getinfo.net/douge
dou### [at] nlsnet

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Wouaawww !!
Thanks for doing this great include !

JC

Doug Eichenberg wrote:
> The MayaFur.inc file I have been working on is ready, and can be downloaded
> here:
> 
> http://www.getinfo.net/douge/downloads.htm
> 
> Basically, it is a set of macros for POV that mimics the way fur is done in
> Maya.  More info can be found in povray.news-submissions, but I wanted to
> include a sample render here for those that haven't seen it.
> 
> 
> --
> Doug Eichenberg
> www.getinfo.net/douge
> dou### [at] nlsnet
> 
> 
>

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: )

--
Doug Eichenberg
www.getinfo.net/douge
dou### [at] nlsnet

> Wouaawww !!
> Thanks for doing this great include !
>
> JC
>
> Doug Eichenberg wrote:
> > The MayaFur.inc file I have been working on is ready, and can be
downloaded
> > here:
> >
> > http://www.getinfo.net/douge/downloads.htm
> >
> > Basically, it is a set of macros for POV that mimics the way fur is done
in
> > Maya.  More info can be found in povray.news-submissions, but I wanted
to
> > include a sample render here for those that haven't seen it.
> >
> >
> > --
> > Doug Eichenberg
> > www.getinfo.net/douge
> > dou### [at] nlsnet
> >
> >
> >
>

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"Doug Eichenberg" <dou### [at] nlsnet> wrote

> Basically, it is a set of macros for POV that mimics the way fur is done
in
> Maya.  More info can be found in povray.news-submissions, but I wanted to
> include a sample render here for those that haven't seen it.

The sample reminds me more of coral.

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Actually, I'd love to see the code for the scraggle example as I am very
interested in modeling Japanese textiles, and this could be a good start. Is
it available?
thanks,
D.
"Doug Eichenberg" <dou### [at] nlsnet> wrote in message
news:3f49047c$2@news.povray.org...
> I included a cat as the demo scene... more challenging to get the fur
> coverage right.
>
> --
> Doug Eichenberg
> www.getinfo.net/douge
> dou### [at] nlsnet
>
>

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I'll see if I can hunt it down, it might be on one of the other computers.

--
Doug Eichenberg
www.getinfo.net/douge
dou### [at] nlsnet
Dennis Miller <dhm### [at] comcastnet> wrote in message
news:3f4a7d66$1@news.povray.org...
> Actually, I'd love to see the code for the scraggle example as I am very
> interested in modeling Japanese textiles, and this could be a good start.
Is
> it available?
> thanks,
> D.
> "Doug Eichenberg" <dou### [at] nlsnet> wrote in message
> news:3f49047c$2@news.povray.org...
> > I included a cat as the demo scene... more challenging to get the fur
> > coverage right.
> >
> > --
> > Doug Eichenberg
> > www.getinfo.net/douge
> > dou### [at] nlsnet
> >
> >
>
>

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I don't see the original code for this example, but you might try something
like this as a starting point:

#declare length=1;
#declare base_width=0.05;
#declare tip_width=0.01;
#declare segments=50;
#declare base_curl=0;
#declare tip_curl=0;
#declare scraggle=0.75;
#declare scraggle_freq=20;
#declare save_name="scragglehair.inc"
#declare scraggle_seed=723562;
#declare tti=5;
SingleHair(length, base_width, tip_width, segments, base_curl, tip_curl,
scraggle, scraggle_freq, save_name, scraggle_seed, tti)

A quick render with these settings gave me the attached image.

--
Doug Eichenberg
www.getinfo.net/douge
dou### [at] nlsnet

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Attachments:
Download 'MayaFurDemo.jpg' (166 KB)

Preview of image 'MayaFurDemo.jpg'

Looks like a dog who got a pretty serious electric shock!

I wonder though, if all these triangles are copies of one mesh because they
look very similar, in this image.

It's nice.. Probably the best fur macros I've ever seen for POV.. I'll hope
to use this somehow. :o)

Regards
Hugo

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After some tries, I think that improving memory use and rendering time 
could be a priority for the MayaFur.inc
I tried the example yesterday night and on my XP2800 with 1Go I fell 
down to 10PPS (Quality set to 1) !
Apart from that, the packaging of the include is really great with good 
explaination and schemas.

JC


Doug Eichenberg wrote:
> The MayaFur.inc file I have been working on is ready, and can be downloaded
> here:
> 
> http://www.getinfo.net/douge/downloads.htm
> 
> Basically, it is a set of macros for POV that mimics the way fur is done in
> Maya.  More info can be found in povray.news-submissions, but I wanted to
> include a sample render here for those that haven't seen it.
> 
> 
> --
> Doug Eichenberg
> www.getinfo.net/douge
> dou### [at] nlsnet
> 
> 
>

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The thing to understand is that if you want a reasonable render time you
have to turn off TTI and use a standard POV texture.  It would help to turn
off (or at least tone down) the radiosity too.  That demo image uses pure
radiosity lighting and TTI texturing, which takes a lot of memory and
resources.

--
Doug Eichenberg
www.getinfo.net/douge
dou### [at] nlsnet
JC (Exether) <no### [at] spamfr> wrote in message
news:3f4b1863$1@news.povray.org...
> After some tries, I think that improving memory use and rendering time
> could be a priority for the MayaFur.inc
> I tried the example yesterday night and on my XP2800 with 1Go I fell
> down to 10PPS (Quality set to 1) !
> Apart from that, the packaging of the include is really great with good
> explaination and schemas.
>
> JC
>
>
> Doug Eichenberg wrote:
> > The MayaFur.inc file I have been working on is ready, and can be
downloaded
> > here:
> >
> > http://www.getinfo.net/douge/downloads.htm
> >
> > Basically, it is a set of macros for POV that mimics the way fur is done
in
> > Maya.  More info can be found in povray.news-submissions, but I wanted
to
> > include a sample render here for those that haven't seen it.
> >
> >
> > --
> > Doug Eichenberg
> > www.getinfo.net/douge
> > dou### [at] nlsnet
> >
> >
> >
>

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OK, I'll try to change the settings, maybe you should make your example 
auto-tunable, because it's a bit frightening at first.  :-)

JC

Doug Eichenberg wrote:
> The thing to understand is that if you want a reasonable render time you
> have to turn off TTI and use a standard POV texture.  It would help to turn
> off (or at least tone down) the radiosity too.  That demo image uses pure
> radiosity lighting and TTI texturing, which takes a lot of memory and
> resources.
> 
> --
> Doug Eichenberg
> www.getinfo.net/douge
> dou### [at] nlsnet
> JC (Exether) <no### [at] spamfr> wrote in message
> news:3f4b1863$1@news.povray.org...
> 
>>After some tries, I think that improving memory use and rendering time
>>could be a priority for the MayaFur.inc
>>I tried the example yesterday night and on my XP2800 with 1Go I fell
>>down to 10PPS (Quality set to 1) !
>>Apart from that, the packaging of the include is really great with good
>>explaination and schemas.
>>
>>JC
>>
>>
>>Doug Eichenberg wrote:
>>
>>>The MayaFur.inc file I have been working on is ready, and can be
> 
> downloaded
> 
>>>here:
>>>
>>>http://www.getinfo.net/douge/downloads.htm
>>>
>>>Basically, it is a set of macros for POV that mimics the way fur is done
> 
> in
> 
>>>Maya.  More info can be found in povray.news-submissions, but I wanted
> 
> to
> 
>>>include a sample render here for those that haven't seen it.
>>>
>>>
>>>--
>>>Doug Eichenberg
>>>www.getinfo.net/douge
>>>dou### [at] nlsnet
>>>
>>>
>>>
>>
> 
>

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Is it just me or are there "bald" patches in places on this image?

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Yes, but that's because I turned down the hairs_per_unit to a really low
number, since I was only testing scraggle.

--
Doug Eichenberg
www.getinfo.net/douge
dou### [at] nlsnet
Neonux <neo### [at] softhomenet> wrote in message
news:3f4b4c09@news.povray.org...
> Is it just me or are there "bald" patches in places on this image?
>
>

Post a reply to this message

Yeah, with the demo scene, I was trying to max out the settings on a low-end
machine... p3 700MHz with 256meg.  The fact that I could get 160,000 hairs
with pure radiosity lighting and triangle texture interpolation seemed
pretty good to me on that machine :P

--
Doug Eichenberg
www.getinfo.net/douge
dou### [at] nlsnet
JC (Exether) <no### [at] spamfr> wrote in message news:3f4b44e8@news.povray.org...
> OK, I'll try to change the settings, maybe you should make your example
> auto-tunable, because it's a bit frightening at first.  :-)
>
> JC
>
> Doug Eichenberg wrote:
> > The thing to understand is that if you want a reasonable render time you
> > have to turn off TTI and use a standard POV texture.  It would help to
turn
> > off (or at least tone down) the radiosity too.  That demo image uses
pure
> > radiosity lighting and TTI texturing, which takes a lot of memory and
> > resources.
> >
> > --
> > Doug Eichenberg
> > www.getinfo.net/douge
> > dou### [at] nlsnet
> > JC (Exether) <no### [at] spamfr> wrote in message
> > news:3f4b1863$1@news.povray.org...
> >
> >>After some tries, I think that improving memory use and rendering time
> >>could be a priority for the MayaFur.inc
> >>I tried the example yesterday night and on my XP2800 with 1Go I fell
> >>down to 10PPS (Quality set to 1) !
> >>Apart from that, the packaging of the include is really great with good
> >>explaination and schemas.
> >>
> >>JC
> >>
> >>
> >>Doug Eichenberg wrote:
> >>
> >>>The MayaFur.inc file I have been working on is ready, and can be
> >
> > downloaded
> >
> >>>here:
> >>>
> >>>http://www.getinfo.net/douge/downloads.htm
> >>>
> >>>Basically, it is a set of macros for POV that mimics the way fur is
done
> >
> > in
> >
> >>>Maya.  More info can be found in povray.news-submissions, but I wanted
> >
> > to
> >
> >>>include a sample render here for those that haven't seen it.
> >>>
> >>>
> >>>--
> >>>Doug Eichenberg
> >>>www.getinfo.net/douge
> >>>dou### [at] nlsnet
> >>>
> >>>
> >>>
> >>
> >
> >
>

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Okay, thanks. I have to figure out hot to turn that into a more abstract
shape, but that should be a fun exercise.
Thanks again,.
D.

"Doug Eichenberg" <dou### [at] nlsnet> wrote in message
news:3f4adb7b@news.povray.org...
> I don't see the original code for this example, but you might try
something
> like this as a starting point:
>
> #declare length=1;
> #declare base_width=0.05;
> #declare tip_width=0.01;
> #declare segments=50;
> #declare base_curl=0;
> #declare tip_curl=0;
> #declare scraggle=0.75;
> #declare scraggle_freq=20;
> #declare save_name="scragglehair.inc"
> #declare scraggle_seed=723562;
> #declare tti=5;
> SingleHair(length, base_width, tip_width, segments, base_curl, tip_curl,
> scraggle, scraggle_freq, save_name, scraggle_seed, tti)
>
> A quick render with these settings gave me the attached image.
>
> --
> Doug Eichenberg
> www.getinfo.net/douge
> dou### [at] nlsnet
>
>
>

Post a reply to this message