hughes, b. <omn### [at] charternet> wrote:
> So to clarify that, if so, x and z are the size or area.

  Technically speaking that description is incomplete. The two vectors do
not only define the size (ie. dimensions) but also the orientation of the
area lights. Using x and z gives you a very different orientation than
using eg. x and y. (Unless you are using 'orient', of course.)
  It should also be noted that using x and z is different from using
x and 2*z, which gives you an area lights twice as long in the z direction
(in this case, in order to get better lighting, you should also double the
density of the grid in that axis, ie. the fourth parameter given to
'area_light').

-- 
#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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By the way, for more info about common misunderstandings about area lights,
see http://www.students.tut.fi/~warp/povQandT/misconceptions.html#arealightconfusion2

-- 
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}//  - Warp -

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