"H.E. Day" wrote:
> First, decrease your threshold to .1.  As for the intersections, you should make
> multiple copies of the objects you wish to blob. Make the components increase in
> diameter, and decrease the component power.  This "feathers" the edges, resulting
> in a much smoother edge.

That worked like a dream, thank you very much.
It must feel great to have control of these evasive shapes.. 

> > * How do I prevent the image maps from appearing at the reverse side? I've
> > tried gradient texture maps, but was told that texture maps couldn't be used in
> > layered textures. (or something)
> 
> This actually works just fine. The texture on my sports car is entirely dependent
> on this working just fine. my suggestion is to experiment.

Guess you're right! Just bad nesting on my part. 

<bow> <scrape>

sig.

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I can see this working, but won't the differencing make the scene a lot slower?

sig.

Eric Freeman wrote:
> 
> "Sigmund Kyrre Aas" <as### [at] studntnuno> wrote in message
> news:38B02C3E.D0BC1000@stud.ntnu.no...
> >
> > Nice tutorial, but it didn't solve my problem.
> >
> > Now I've tried material maps too, but I get the
> > same message when I try to use them in layers:
> > "Cannot layer a patterned texture over another"
> >
> > sig.
> 
> Here's a code snippet from a drinking glass I made using a different
> technique.  Basically you create a second object (slightly larger than the
> original and hollow), apply the logo image map to it, and chop off the back
> half by differencing it with a box.
> 
> // make a drinking glass from the difference
> // of two cylinders
> #declare GlassMain = difference {
>   cylinder {
>     <0,0,0>,
>     <0,Hite,0>
>     Rad
>   }
>   cylinder {
>     <0,0.1,0>,
>     <0,Hite+1,0>
>     Rad*0.9
>   }
>   material {GlassMat}
> }
> 
> // make another hollow cylinder with a slightly larger
> // radius than the drinking glass and chop off the back
> // of it by differencing it with a box
> #declare Logo = difference {
>   cylinder { // main cylinder
>     <0, -0.7, 0>,
>     <0,  0.7, 0>
>     Rad+0.00002
>   }
>   cylinder { // cut-out
>     <0,-0.71,0>,
>     <0,0.71,0>
>     Rad+0.00001
>   }
>   box { // chop off the back half of the cylinder
>     <-Rad-0.1,-0.71,0>,
>     <Rad+0.1,0.71,Rad+0.1>
>   }
>   texture {
>     pigment {
>       image_map {
>         gif "logo_image.gif"
>         transmit 209, 1.0 // make the background of the image transparent
>         once
>         map_type 0
>         interpolate 2
>       }
>     }
>     // scale the logo to fit
>     translate <-0.5,-0.5,0>
>     scale <224/167,1,1>
>     scale 1.4
>   }
>   // position the logo cylinder on the drinking glass
>   translate <0,3.75,0>
>   rotate y*11
> }
> 
> #declare DrinkingGlass = union {
>   object {GlassMain}
>   object {Logo}
> }
> 
> Eric
> --------------------
> http://www.datasync.com/~ericfree
> --------------------
> "The whole problem with the world is that fools and fanatics are always so
> certain of themselves, but wiser people so full of doubts."
> --Bertrand Russel

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Sigmund Kyrre Aas wrote:
<snip>

> * How do I prevent the image maps from appearing at the reverse side? I've
> tried gradient texture maps, but was told that texture maps couldn't be used in
> layered textures. (or something)

http://www.spiritone.com/~english/cyclopdia/bottle.html

Hopefully this will help. I'm not the linkmaster Ken is, I only know of this on
because I wrote it.

--
Josh English
eng### [at] spiritonecom
"May your hopes, dreams, and plans not be destroyed by a few zeros."

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On Mon, 21 Feb 2000 11:21:36 +0100, Sigmund Kyrre Aas
<as### [at] studntnuno> wrote:

>I can see this working, but won't the differencing make the scene a lot slower?
>
>sig.

Probably, try clipping it with a plane instead.


Peter Popov
pet### [at] usanet
ICQ: 15002700

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Real nice photograph,  but if you want to render it
be prepared to be dissapointed, it'll take you hours
and hours, and you'll still be nowhere close to the
photo version.

-- 
Cheers
Steve              email mailto:sjl### [at] ndirectcouk

%HAV-A-NICEDAY Error not enough coffee  0 pps. 

web http://www.ndirect.co.uk/~sjlen/

or  http://start.at/zero-pps

  8:55pm  up 7 days,  7:58,  5 users,  load average: 2.10, 2.04, 1.79

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Josh English wrote:
..
> http://www.spiritone.com/~english/cyclopdia/bottle.html
.. 

cyclop_e_dia
Hm, yes, using radial is a bit more elegant than gradient. Ah, well who cares
as long as it works.. 

I also found a thread in this group concerning my other problem:

On 23 Nov 1999 11:29:02 -0500, Nieminen Juha wrote:
>  When I was making my irtc animation entry, povray told me this:
>
>error: Cannot layer over a patterned texture.

but I got around this since I didn't actually need a texture_map, just a
pigment_map.

Btw I'm planning to make a bunch of baseball artifacts for the Knickers web
site. Can't wait to start on that glove :-[ Nice excuse to learn spatch..

sig.

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Attachments:
Download 'baseball2.jpg' (28 KB)

Preview of image 'baseball2.jpg'

"Sigmund Kyrre Aas" <as### [at] studntnuno> wrote in message
news:38B1C5D8.DFBABF96@stud.ntnu.no...
>
> Btw I'm planning to make a bunch of baseball artifacts
> for the Knickers web site. Can't wait to start on that
> glove :-[ Nice excuse to learn spatch..

Very nice image.  You might consider Rhino for making that glove.  You can
download a fully functional demo that limits you to a total of 25 saves.  It
exports to POV and is VERY powerful.  If you're a student they offer a great
discount (my wife just started back to school to finish her MBA... time to
buy it!!!).

http://www.rhino3d.com/

Eric
--------------------
http://www.datasync.com/~ericfree
--------------------
"The whole problem with the world is that fools and fanatics are always so
certain of themselves, but wiser people so full of doubts."
--Bertrand Russel

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On Mon, 21 Feb 2000 17:25:37 -0600, "Eric Freeman"
<eri### [at] datasynccom> wrote:

>"Sigmund Kyrre Aas" <as### [at] studntnuno> wrote in message
>news:38B1C5D8.DFBABF96@stud.ntnu.no...
>>
>> Btw I'm planning to make a bunch of baseball artifacts
>> for the Knickers web site. Can't wait to start on that
>> glove :-[ Nice excuse to learn spatch..
>
>Very nice image.  You might consider Rhino for making that glove.  You can
>download a fully functional demo that limits you to a total of 25 saves.  It
>exports to POV and is VERY powerful.  If you're a student they offer a great
>discount (my wife just started back to school to finish her MBA... time to
>buy it!!!).

That was 15 uses last that I checked (the day before). If you can keep
an uptime of two or three days you'll learn most of the stuff you'll
need. The tutorials are good and the help, though a bit on the
reference side, is, well, quite helpful. I was able to create a pretty
complex (for me, anyway) model in less than 6 hours and I don't think
I am any exception to the learning curve statistics.


Peter Popov
pet### [at] usanet
ICQ: 15002700

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"Peter Popov" <pet### [at] usanet> wrote in message
news:icmxOENZS=HNRkK3xJBEpCLUsq+o@4ax.com...
>
> On Mon, 21 Feb 2000 17:25:37 -0600, "Eric Freeman"
> <eri### [at] datasynccom> wrote:
> >
> > Very nice image.  You might consider Rhino for making
> > that glove.  You can download a fully functional demo
> > that limits you to a total of 25 saves.  It exports to POV
> > and is VERY powerful.  If you're a student they offer a
> > great discount (my wife just started back to school to
> > finish her MBA... time to buy it!!!).
>
> That was 15 uses last that I checked (the day before).

They must have changed it... I just checked mine and it said I have 25 saves
left (I haven't made anything good enuf to save yet).

Eric
--------------------
http://www.datasync.com/~ericfree
--------------------
"The whole problem with the world is that fools and fanatics are always so
certain of themselves, but wiser people so full of doubts."
--Bertrand Russel

Post a reply to this message

"Eric Freeman" <eri### [at] datasynccom> writes:

> Very nice image.  You might consider Rhino for making that glove.  You can
...

I'll check it out. I've seen some very nice models done with Rhino, but I
didn't know there was a trial version. How good is the pov-export? Do you
have good control of object groups/unions?

-- 
Sigmund Kyrre Aas

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