Hi All,
Heres the latest lego, i have solved the problem of loosing some faces as in
the previous post, by exporting to a wavfront object (.obj) instead of 3ds
everything seems to be ok, alos the objects are grouped by colour, making
texturing much simpler.

BUT

i have come across a potential bug in either moray or povray, if i add
another lego object as a udo, then manipulate it (ie translate it then
rotate it slightly) many of the scene objects are positioned incorectly, eg
all the black objects are rendered in the wrong places - i will post an
image l8r

minor post processing in psp (gamma) and adding border only, nasty jpeg
compression...ah well

and i know i have the front lights slightly misplaced...

Rick

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Attachments:
Download 'lego-car-man.jpg' (43 KB)

Preview of image 'lego-car-man.jpg'

In article <390c5beb@news.povray.org>, "Rick [Kitty5]" 
<kit### [at] dialpipexcom> wrote:

> Heres the latest lego, i have solved the problem of loosing some 
> faces as in the previous post, by exporting to a wavfront object 
> (.obj) instead of 3ds everything seems to be ok, alos the objects are 
> grouped by colour, making texturing much simpler.

Three things I noticed:
First: the faceting is very bad. I don't know if you were just using low 
quality settings for test models, but the corners on round parts and 
non-smooth shading are quite distracting. Also, I don't see anything 
here that wouldn't be done better with CSG than triangle meshes...all of 
the geometry looks pretty simple to model.
Second: there aren't any visible seams between the lego parts. This may 
just be because you haven't refined the model to that point yet, or they 
may be there but are just too small to be visible, it is hard to tell. 
Something to think about.
Third: it looks like you forgot to put some refraction on the clear 
"headlights", you can see through them without distortion.


> i have come across a potential bug in either moray or povray, if i 
> add another lego object as a udo, then manipulate it (ie translate it 
> then rotate it slightly) many of the scene objects are positioned 
> incorectly, eg all the black objects are rendered in the wrong places 
> - i will post an image l8r

It sounds like a Moray problem, I have never heard of this occuring with 
POV-Ray...and what is an "udo"?

-- 
Christopher James Huff - Personal e-mail: chr### [at] yahoocom
TAG(Technical Assistance Group) e-mail: chr### [at] tagpovrayorg
Personal Web page: http://chrishuff.dhs.org/
TAG Web page: http://tag.povray.org/

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Ugh
IMO this is one of those areas where hand-coding has a definite advantage

--
David Fontaine     <dav### [at] faricynet>    ICQ 55354965
Please visit my website: http:/www.faricy.net/~davidf/

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> Three things I noticed:
> First: the faceting is very bad. I don't know if you were just using low
> quality settings for test models, but the corners on round parts and
> non-smooth shading are quite distracting.

I can adjsut the smoothing when in pass the file througth 3dwin, but if i
tweak it to much, i will loose definitaion on the pieces.

> Also, I don't see anything
> here that wouldn't be done better with CSG than triangle meshes...all of
> the geometry looks pretty simple to model.

I know, but i am using leoCAD to model, and the only way to get my work out
is a triangle mesh or via the ldraw labrary (which i dont have yet)

> Second: there aren't any visible seams between the lego parts. This may
> just be because you haven't refined the model to that point yet, or they
> may be there but are just too small to be visible, it is hard to tell.
> Something to think about.

i cannot put gaps in sorry - i may try adjusting the block snap in leoCAN
and see if i can get tiny gaps in, but i have feeling it will cack things up

> Third: it looks like you forgot to put some refraction on the clear
> "headlights", you can see through them without distortion.

#whoops

> > i have come across a potential bug in either moray or povray, if i
> > add another lego object as a udo, then manipulate it (ie translate it
> > then rotate it slightly) many of the scene objects are positioned
> > incorectly, eg all the black objects are rendered in the wrong places
> > - i will post an image l8r
>
> It sounds like a Moray problem, I have never heard of this occuring with
> POV-Ray...and what is an "udo"?

 a udo is a mesh for importing into moray, if the bug is in povray then its
a problem with inc files

Rick

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In article <390d8cb6@news.povray.org>, Rick [Kitty5]
<kit### [at] dialpipexcom> wrote:

> I know, but i am using leoCAD to model, and the only way to get my work out
> is a triangle mesh or via the ldraw labrary (which i dont have yet)
>
> i cannot put gaps in sorry - i may try adjusting the block snap in leoCAN
> and see if i can get tiny gaps in, but i have feeling it will cack things up

Rick,

If you like you can go take a look at:

  http://people.a2000.nl/araves/

And see how I went about Lego(TM) and POV-Ray... You can even download
my libraries and a few sample sets there (Even of a few Star
Wars(TM)-models!)

With the kindest of greetings,
  Anton

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