Povanim :Light Modification 3/n

Light Modification 3/n

Povanim for Blender

jean-michel soler 2002 - 2004

I
n
d
e
x

To imitate the volumetric lights of blender
by using the Atmospheric Media

version blender

version povray

This is quite simple and may work as in blender itself. So, before exporting :

1/ we have to activate halo function in the lamps
2/ we have to activate mist function in the World.

The script will automaticaly add the necessary media definitions ( bold written in the following example):

//povray beta version 3.5
// POVANIM export from : testmistpovanim , Main

sphere{<0.0,0.0,0.0>,1.0
pigment{
   gradient y
   color_map{
   [0.0 color rgb<0.000,0.000,0.000>]
   [0.50 color rgb<0.000,0.000,0.600>]
   [1.0 color rgb<0.000,0.000,0.000>]
   }
}
finish{diffuse 0.7 ambient 1.0}
   scale <1.000,1.000,1.000>*100.000
rotate x*17
rotate <90.000,0.000,0.000>
translate<-0.000,-11.445,0.982>
interior{
media {
   intervals 1
   scattering { 1, rgb 1.0/50.000 }
   //samples 1, 10
   //confidence 0.9999
   variance 1/10000
   //ratio 0.9
}
}
hollow on
}

#include "camtestmistpovanim.inc"
#include "meshtestmistpovanim.inc"
#include "lamptestmistpovanim.inc"

The modifications can be done by hand editing the main***.pov file in a word processor .

One can find more information on the media parameters at these two addresses :
http://astronomy.swin.edu.au/~pbourke/povray/media/
http://www.cacr.caltech.edu/~slombey/asci/povray/pov356.htm
In frenchs :
http://rod.gelaude.chez.tiscali.fr/fr/tut/les_media.htm
and also :
http://users.skynet.be/bs936509/povfr/materiaux/mat-med-gen.htm

version povray bis

version povray ter

Tous les droits réservés pour le logo "povanim", les explications, scripts et images sur ces pages par JM Soler fevrier/juin 2002-septembre2004. Pour toutes les questions touchant les éventuels problèmes rencontrés avec cette page ou avec le script, contactez l'auteur sur le forum de discussion:3D.Blender

Blender, apprenez, pratiquez, Créez, Ed. Campus Press, coll. Starter Kit

Blender Starter Kit