kurtz le pirate wrote:
> In article <42482315@news.povray.org>,
>  Alain <ele### [at] netscapenet> wrote:
> 
> 
>>>pdub nous apporta ses lumieres en ce 2005-03-27 17:57:
>>>
>>>>Does anyone have a simple scene file on making a cross or a cricifix? I am 
>>>>new to povray and I would like to try and make my first scene using a 
>>>>cross. 
>>>>
>>>>Thank you in advance to whomever can help me.
>>>>
>>>>Pauly
>>>
>>>Use an union of 3 boxes. One big box for the vertical part and 2 for the arms 
>>>placed on the sides of 
>>>the main one. Use a wood texture with "rotate 90*x" for the first box and 
>>>"rotate 90*y" for the 
>>>other two. You can find many wooden textures in the file "woods.inc", try 
>>>various ones until you get 
>>>a result that please you. If the scale don't suits you, use a scale on the 
>>>textures to enlarge or 
>>>shrink the grain.
>>>
>>>Alain
> 
> 
>   why 3 boxes ? 2 are enough no ?
>   
> 
>   have fun!

I think the reason is to give the overlap in the center a more realistic 
look..

i.e. it would be constructed like this:
      +---+
      |vvv|
+----|vvv|----+
|>>>>|vvv|>>>>|
+----|vvv|----+
      |vvv|
      |vvv|
      |vvv|
      |vvv|
      +---+

(Excuse the bad ASCII art)

Where the >> and VV symbols show the direction of the wood grain. If you 
overlap the pieces, the two patterns would overlap causing visible 
speckling artifacts. If you want it as just a single piece of wood, then 
you can get away with just creating a union of two boxes. (or merge, if 
you intend it to be a transparent material...)




-- 
~Mike

Things! Billions of them!

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