gramirosimancas <nomail@nomail> wrote:
> Do someone now if would be possible to render using square rays instead of
> line rays in povray or any other raytracer or any other 3d renderer?

  When you project a square onto the scene, you would need to calculate
the average color of the area covered by that square. Since the square does
not necessarily fall on a single surface it can be extremely hard.
(It's very hard even if it falls on a single surface since the texture
and lighting of the surface can be very complicated.)

-- 
#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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