"Kevinaz" <Kev### [at] ctmetrocastnet> wrote in message 
news:web.45edf64b19f1c36729e876c50@news.povray.org...

> I figured out the problem though, I wasn't hitting "save" before I 
> rendered,
> so the changes weren't being made. (My stupidity as usual :-|) Now all of 
> my
> changes are taking effect.

     Glad you got it sorted.  :)


>
> However, what is "handedness"?

   "Handedness", is the co-ordinate system of the program you are using. 
PoV-Ray uses this: http://www.povray.org/documentation/view/3.6.1/15/

 Other programs might use a similar, but different system; i.e, swaps Z for 
X, hence our answers.

  (Would like to see your final image in p.b.images sometime - looking 
good).

      ~Steve~



>
> Kevinaz
>
> P.S. I got in touch with the author of ani2pov, and he's working on fixing
> this.
>
>

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Kevinaz nous apporta ses lumieres en ce 06-03-2007 18:16:

> However, what is "handedness"?

> Kevinaz

> P.S. I got in touch with the author of ani2pov, and he's working on fixing
> this.


It's the way the coordinates and rotations are interpreted.
POV-Ray use left handedness. With that handedness, when you point your left 
thumg toward the positive direction of an axis and curl your fingers, they go 
the direction of a positive rotation.
+X is to the right.
+Y is up.
+Z is away.
Positive rotation is anti-clockwise. Just as in my geometry classes.

Many CAD programms have +Y been away and +Z up and use right handedness where 
positive rotation is clockwise.

-- 
Alain
-------------------------------------------------
I abhor war and view it as the greatest scourge of mankind.
Thomas Jefferson

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> I figured out the problem though, I wasn't hitting "save" before I rendered,
> so the changes weren't being made. (My stupidity as usual :-|) Now all of my
> changes are taking effect.
>

One advice, Windows PovRay 3.6 (and some earlier versions) have several
options to make things easier. One of them is that you can automatically
save all the changes when clicking on RUN. Take a look on those things,
they are quite useful and allow you to work quite fast.

And I agree with Stephen. I have been working with a modeller for years but
I was not able to do interesting images until I learnt to write bare code
in pov. Then you see that modellers only offer you a small part of what Pov
is able to do. So, LEARN TO READ POV FILES MY FRIEND

Post a reply to this message

One advice, you have several options (at least in Pov3.6 for Windows) to
make things easier. One of them is that you can save all changes in all
files automatically when clicking on RUN. Take a look on those things, they
help a lot.

And I agree with Stephen. Modellers are quite useful in the begining (I
still use Moray) but when you learn to write and read bare code in Pov you
notice that even the best modellers only offer you a small part of what POV
can do. And knowing to read/write code helps you to solve problems. So LEARN
POV CODE MY FRIEND.

Post a reply to this message

camera {
>    location <-3.509800,33.472000,168.360001>
>    up <0,1,0>
>    right <-4/3,0,0>
>    direction <0,0,1>
>    look_at <-11.923838,34.394115,163.035004>
>
> }

in the camera statement ..add angle 90 ..which gives

camera {
    location <-3.509800,33.472000,168.360001>
    look_at <-11.923838,34.394115,163.035004>
    angle 90
/* add the rest if image request it */

> }
















news:web.45ec947b3b1cee0529e876c50@news.povray.org...
> hi,
>
> I'm very new to pov ray, (got it yesterday), and I'm having a little bit
of
> trouble understanding how to position the camera.
>
> I use Anim8or to model everything and setup a scene. Then I use a program
> called ani2pov to convert the scene to .pov format.
>
> Here's my problem: the camera should be set up so that it looks like this:
> http://img402.imageshack.us/img402/986/an8cityva8.jpg
>
> But it ends up looking like this:
> http://img77.imageshack.us/img77/2738/scene01tp6.png
>
> I have no clue how to change the code to re-adjust it. No matter what I
try,
> the camera doesn't seem to move.
>
> Please Help
>
> Kevinaz
>
>

Post a reply to this message

I just found out that Anim8or uses right handedness (more detailed info on
that soon). But strangley, NONE of your suggestions are working!

Kevinaz

Post a reply to this message

Kevinaz wrote:
> I just found out that Anim8or uses right handedness (more detailed info on
> that soon). But strangley, NONE of your suggestions are working!

One nice thing about POV-Ray is all the inputs are text. (Well, at least 
for this problem.)

Take your scene, convert it to POV-Ray.  Move the camera, convert it 
again. Compare the two directories full of POV-Ray sources. See where 
they differ. Then grep both sets of sources for the word "camera" and 
see what you find.

-- 
   Darren New / San Diego, CA, USA (PST)
     "Let the wine breathe" does not mean to blow bubbles.
     Trust me: your wine does not need CPR.

Post a reply to this message

"Kevinaz" <Kev### [at] ctmetrocastnet> wrote:
> I just found out that Anim8or uses right handedness (more detailed info on
> that soon). But strangley, NONE of your suggestions are working!
>
> Kevinaz

In that case simply add to your camera statement:
right  <-1.33,0,0>

And keep the original Anim8or coordinates. See 2.3.1.1.7.

Post a reply to this message

"Kevinaz" <Kev### [at] ctmetrocastnet> wrote:
> I just found out that Anim8or uses right handedness (more detailed info on
> that soon). But strangley, NONE of your suggestions are working!
>
> Kevinaz

I got in touch with the author of ani2pov, and it was a bug in ani2pov. Not
anim8or's handedness.

Anyway, it works now! He re-released ani2pov.

Here is what it now looks like (needs adjusting, but ok so far):
http://img152.imageshack.us/img152/1603/scene01yg0.png

Thanks a lot all of you. I learned something new about 3d.

Kevinaz

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"Kevinaz" <Kev### [at] ctmetrocastnet> wrote in message 
news:web.45f71c6219f1c36729e876c50@news.povray.org...

> Here is what it now looks like (needs adjusting, but ok so far):
> http://img152.imageshack.us/img152/1603/scene01yg0.png

     That's looking good! Glad you got it sorted out.

        ~Steve~




> Kevinaz
>
>

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