> Since I have your attention... Is there any difference between this:
> <0,0,10>,<0,10,0>
> and this:
> <0,10,0>,<0,0,10>
In most cases, the two are equivalent. If the dimentions are different, 
there will be a difference. It also make a difference if the sublights 
array don't have the same size in both dimentions.
>
> And does this make any difference and/or is it legal:
> <0,0,-10><0,-10,0>
>
>
It should'nt mather if the dimentions are positive or negative. It only 
change the order that the aray of sublights is filled. Just try using a 
negative dimention to see if it work.

When using adaptive, an array of 10 by 10 is not effecient as it can't 
be subdivided correctly, and will be silently changed to 9 by 9 OR 17 by 17.
adaptive will use those dimentions: 3, 5, 9, 17, 33, 65, 129,...
adaptive can take the following values: 0, 1, 2, ...
The value following adaptive is NOT a boolean value, but the minimal 
subdivisions steps to be used.
adaptive 0 start with the 4 corners: 4 samples. No appreciable gain 
under a 5 by 5 array.
adaptive 1 start with the corners and the mid points of the edges and 
the center point: 9 samples. No appreciable gains under a 9 by 9 array.
adaptive 2 use at least 25 samples and adaptive 3 at least 81.



Alain

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