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"Nekar Xenos" <j-p### [at] citywalk co za> wrote in message
news:<3af247e6@news.povray.org>...
> Very nice. Will you post the radiosity code as well. I don't know how to
use
> radiosity so this would be a help.
>
Well, here the scene - I'm not sure if my radiosity settings are "correct" -
the brightness setting seems anti-intuitive. (and don't forget to render
with +qr)
#version unofficial MegaPov 0.6;
#declare doRad = true;
#if(doRad)
global_settings
{
assumed_gamma 1.0
ambient_light 0
radiosity{
pretrace_start 0.08
pretrace_end 0.02
count 150
nearest_count 5
recursion_limit 4
error_bound 1
low_error_factor .5
gray_threshold 0.0
minimum_reuse 0.015
brightness 50
media on
}
}
#end
#include "colors.inc"
camera{location <0, 0.5, -10.0> look_at <2, 1.2, 0.0>}
sphere{0, 4.75 pigment{bozo scale 0.1 color_map {[0.0 color rgb <0.1, 0.2,
0.3>*.25] [1.0 color rgb <0.11, 0.3,0.4>*.25]}} scale<100,1,100> inverse
finish{ambient 1}}
plane { y, -1 pigment{ color rgb <0.7, 0.5, 0.3> }normal{bumps scale 3 }}
plane { y, 0 pigment{bozo color_map{[0.0 color rgbt <0,0,0,1>][1.0 color
rgbt <0.11, 0.3, 0.4,0>]} scale 0.1}normal{bumps scale<1,1,10>} rotate x*180
translate y*10}
fog{distance 50 color rgb 0}
#macro Make_Bolt(LArraySize, LSeed, LWidth, LHeight, LSpread, LBranch,
LCutoff, LSpike)
#declare myArray = array[LArraySize]
#declare checkCount = -1;
#declare highCount = 0;
#declare arrayCount = 0;
#declare myArray[arrayCount] = <0,0,0>;
#declare myRand = seed(LSeed);
#declare Lightning_Bolt =
merge{
#while (checkCount < highCount)
#declare checkCount = checkCount + 1;
#declare segPosA = myArray[arrayCount];
#declare arrayCount = arrayCount + 1;
#declare xPlus = (rand(myRand)-0.5)*LSpread;
#declare zPlus = (rand(myRand)-0.5)*LSpread;
#while(segPosA.y < LHeight)
#declare xShift = segPosA.x + ((rand(myRand)-0.5)*LSpike) + xPlus;
#declare yShift = segPosA.y + (rand(myRand)/5);
#declare zShift = segPosA.z + ((rand(myRand)-0.5)*LSpike) + zPlus;
#if (yShift > LHeight)
#declare yShift = LHeight;
#end
#declare segPosB = <xShift, yShift, zShift>;
cylinder{segPosA, segPosB, LWidth}
#declare segPosA = segPosB;
#declare randNum = rand(myRand);
#if (randNum < LBranch & segPosA.y > LCutoff)
#declare highCount = highCount + 1;
#declare myArray[highCount] = segPosA;
#end
#declare LWidth = (LWidth*0.995) ;
#end
#declare LWidth = (LWidth*0.9) ;
#end
}
#end
Make_Bolt(500, 11211, 0.03, 6, 0.003, 0.05, 0.5, 0.2)
object{
Lightning_Bolt
pigment{rgbt 1}
interior{media{emission<3,3,5>*5}}
hollow
rotate x*180
no_shadow
translate y*5
}
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