On Sun, 02 Jul 2000 22:23:03 -0500, Hookflash <hoo### [at] hotmailcom>
wrote:

>P.S. I'm having trouble lighting my scenes... What are the most common
>methods used (I remember hearing something about "3-point lighting",
>whatever that means)?

Here's what I usually use for showing off a model:

#declare Brightness = 1; // tweak to fit;
// #declare High_Quality = on; // uncomment if needed

light_source 
{ <0,100,0> color White*0.5*Brightness
  #ifdef (High_Quality)
    area_light
    20*x, 20*z,
    5, 5
    adaptive 1
    jitter
  #end
  spotlight 
  point_at 0 
  radius 5 
  falloff 13 
  tightness 100
}

light_source 
{ <100,100,-100> color rgb <1,0.9,0.8>/2*Brightness
  #ifdef (High_Quality)
    area_light 
    15*sqrt(2)*(x+z), 30*x, 
    5, 5
    adaptive 1
    jitter
  #end
}

light_source 
{ <0,40,60> color rgb <0.8,0.9,1>/2*Brightness
  #ifdef (High_Quality)
    area_light
    10*sqrt(2)*(x-z), 20*x, 
    5, 5 
    adaptive 1
    jitter
  #end
  spotlight 
  point_at 0 
  radius 5 
  falloff 15 
  tightness 10
}

Seems to work OK for models that fit a sphere { 0, 10 }.


Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] usanet
TAG      e-mail : pet### [at] tagpovrayorg

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