Rohan Bernett <rox### [at] yahoocom> wrote:
> I remember reading somewhere that a number of things in POVRay are "faked"
> for speed considerations.

> Could someone please tell me which things are faked, and how the "fake"
> implementaion differs from a "real" one?

  Everything in POV-Ray is faked.
  No matter what you do, you can only approximate what happens in reality.

  The idea in that claim may be that some things are approximated more
accurately than others.
  For example, making the approximation that direct diffuse illumination
is relative to the cosine of the surface normal and the direction of the
light is pretty accurate. Approximating an area light source with a grid
of point lights is a quite rough approximation (but looks good enough).

-- 
plane{-x+y,-1pigment{bozo color_map{[0rgb x][1rgb x+y]}turbulence 1}}
sphere{0,2pigment{rgbt 1}interior{media{emission 1density{spherical
density_map{[0rgb 0][.5rgb<1,.5>][1rgb 1]}turbulence.9}}}scale
<1,1,3>hollow}text{ttf"timrom""Warp".1,0translate<-1,-.1,2>}//  - Warp -

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