> How to achieve the following:
> a bunch of light rays on a mirror then reflected by the mirror, the
> angle of incidence is equal to the angle of reflection.
Look at section 3.5.3.4 of the manual, which describes the "reflection"
keyword. In short, to make an object perfectly reflective like a mirror,
you want to write something like:

plane {
  x,0
  finish {
    reflection {1.0}
    ambient 0
    diffuse 0
  }
}

-- 
"The  rules  of  programming  are  transitory;  only  Tao  is  eternal.
 Therefore you  must contemplate Tao before you receive  enlightenment."
"How will I know when I have received enlightenment?"  asked the novice.
"Your program will then run correctly," replied the master.

Post a reply to this message