Hi,

I'm very new to POV-Ray and ray tracing in general. It's a kick. I've spent
much of the last four weeks working through tutorials, both those that came
with v3.5 and those I've found on the web. The resources available are
fantastic! I'm still overwhelmed by it all.

There are times when I would like to use a bicubic patch to smooth a join
between two primitives or attach a bit of detail to a primitive. The toots
I've come across so far advise using a separate mesh editor like Hamapatch
(which I'm growing fond of). But there are times when my gut tells me the
easiest approach would be to define the patch directly in POV, since I often
can define the specific points I need to work with, along the lines of

    #local leftFrontEngineCowling = <engineCP.x + 1.05*engineR,
engineFront.y, 0>;

I'm finding that trying to go back and forth between this kind of
construction and Hamapatch to be frustrating at times.

So can anyone point me to some guidelines (beyond the basic v3.5 tutorial)
for working efficiently with bicubic patches directly in POV? Is anyone
using this kind of approach?

TIA,
--
Will Woodhull
Thornhenge, SW Oregon, USA
willl.at.thornhenge.net

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Will W <wil### [at] nospamwizzardsnet> wrote:
> So can anyone point me to some guidelines (beyond the basic v3.5 tutorial)
> for working efficiently with bicubic patches directly in POV?

  I think that the tutorial in POV-Ray's documentation (section 3.4.5) is
pretty good.
  What are you missing which is not covered by that?

-- 
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -

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"Warp" <war### [at] tagpovrayorg> wrote in message
news:3e4ac74a@news.povray.org...
> Will W <wil### [at] nospamwizzardsnet> wrote:
> > for working efficiently with bicubic patches directly in POV?
>
>   I think that the tutorial in POV-Ray's documentation (section 3.4.5) is
> pretty good.
>   What are you missing which is not covered by that?

Perhaps only the perspective of a second point of view.  I'm not above
asking two different people for directions to the same place when I'm in a
strange city. Or buying a "Dummies" book along with a formal tech man on a
subject I know nothing about. Heck, I even put up with the breezey-cute
style of a "Dummies" book, for the sake of having a second point of view to
consult.

Thanks for your help. I do appreciate being pointed back at the POV
documentation; I'm just hopeful that there is something more out there as
well.


--
Will Woodhull
Thornhenge, SW Oregon, USA
willl.at.thornhenge.net

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....
>I'm just hopeful that there is something more out there as
>well.
....

Some of these links will be relevant:
http://www.google.com/search?q=stitching+together+bezier+patches


Tor Olav

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Thank you, Tor! A couple of those links are indeed very helpful. I doubt
that I would have found them since I did not know that "stitching" and
"bezier" would be useful keywords.

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