Fa3ien <fab### [at] yourshoesskynetbe> wrote:
> Just curious : I wasn't aware of that kind of optimizations (I thought
> that everything was done by matrix, as the docs states).  Does it really
> makes a difference in speed ?

  I don't remember if someone has ever made a benchmark.

  I suppose that you could make a comparison with POV-Ray 3.6 by first
rendering a scene with a lot of spheres which are only translated and
then rendering the same scene with the same spheres with the same
translations, but additionally something "scale <1, .9999, 1>" is
applied to each sphere, which would force it to use a transformation
matrix.

  My guess is that it might make a measurable difference, but perhaps
not a huge one (because most of the time is probably spent in the bounding
box hierarchy tests).

-- 
                                                          - Warp

Post a reply to this message