I don't know whether this bug has been reported yet (I couldn't find any reference to
it, but I have not read this group for a while).

Radiosity samples taken during pretrace step are not restored if rendering is
aborted.
Render this scene with Bright_Sphere set to 'on', but kill the render just after the
pretrace calculations. Then turn off Bright_Sphere and re-render it. No matter how
many times you re-render it: as long as you kill the rendering before it's finished
you'll keep on seeing the bright samples left by that bright sphere.
Then make a full rendering (or just reboot POV-Ray), and this time start rendering
the 'bright_sphere off' version first. Kill it before it has finished and turn the
variable to 'true'. Now you'll see that the bright samples are gone, although the
bright sphere is just there.

POV-Ray beta 10. Athon Windows ME.

#declare BRIGHT_SPHERE = on;

global_settings {
    radiosity {
        count 100
        pretrace_start 0.08
        pretrace_end 0.02
        error_bound 0.5
        recursion_limit 1
    }
}

plane {
    y,0
    pigment { rgb 1}
    finish {diffuse 1}
}

#if (BRIGHT_SPHERE)

sphere {
    y,1
    pigment {
        rgb 1}
    finish {
        ambient 10}
}

#end

camera {
    location <0,2,-4>
    look_at 0
}


--
#local j=text{ttf"arial""JRG".2,0}#local J=0;#while(J<10)#local R=0;#while
(R<2)#local G=0;#while(G<1)#if(inside(j<R,G.1>))object{j scale.025translate
<R-1G-J/20J/-40+2>pigment{rgb<9J>}}#debug"O"#else#debug" "#end#local G=G+
.025;#end#local R=R+.05;#debug"\n"#end#local J=J+1;#end// JRG

Home: http://digilander.iol.it/jrgpov  //New: Kitchen scene WIP

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"JRG" <jrg### [at] hotmailcom> wrote in news:3c587c7a@news.povray.org:

> Radiosity samples taken during pretrace step are not restored if
> rendering is aborted.

Confirmed.

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