In article <3f11746b@news.povray.org> , "Tim Nikias v2.0" 
<tim### [at] gmxde> wrote:

> Anyways, on a sidepath: aren't there possibilities to circumvent
> this stack overflow, or is this out of POV-Ray's hands?

You really don't want to, unless you want to wait until the death of the
universe for your render to finish with such settings...

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org

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Well, okay, I understand that. :-)

Still, the message POV-Ray issues tells me to restart
POV-Ray. Isn't there some way around that? Like,
when POV-Ray notices things are getting out of hand,
it'll stop generating data for that pixel and just take
what it's got?
OTOH, I don't know what is actually overflowing, so
I might be suggesting complete bullsh** here. But isn't
there a possibility for a more user-friendly approach?
Like a message telling me "Don't use so many freakin'
radiosity samples, it cracks me up!" or so?

Hm, yet again, perhaps POV-Ray can't tell that for sure.

So, then just out of interest: what is actually placed in
the stack which overflows? Is it amount of rays? Gathered
samples? Thinking about it, the way POV-Ray handles
it seems to be best possible method, but I'd still like to
know the background, if someone can be bothered... :-)

-- 
Tim Nikias v2.0
Homepage: http://www.digitaltwilight.de/no_lights


>
> > Anyways, on a sidepath: aren't there possibilities to circumvent
> > this stack overflow, or is this out of POV-Ray's hands?
>
> You really don't want to, unless you want to wait until the death of the
> universe for your render to finish with such settings...
>
>     Thorsten
>
> ____________________________________________________
> Thorsten Froehlich, Duisburg, Germany
> e-mail: tho### [at] trfde
>
> Visit POV-Ray on the web: http://mac.povray.org


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Tim Nikias v2.0 <tim### [at] gmxde> wrote:
> Anyways, on a sidepath: aren't there possibilities to circumvent
> this stack overflow, or is this out of POV-Ray's hands?

  Recompile POV-Ray with a larger stack (it's a compiler setting, not
a POV-Ray setting).

-- 
plane{-x+y,-1pigment{bozo color_map{[0rgb x][1rgb x+y]}turbulence 1}}
sphere{0,2pigment{rgbt 1}interior{media{emission 1density{spherical
density_map{[0rgb 0][.5rgb<1,.5>][1rgb 1]}turbulence.9}}}scale
<1,1,3>hollow}text{ttf"timrom""Warp".1,0translate<-1,-.1,2>}//  - Warp -

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In article <3f118cfd@news.povray.org> , "Tim Nikias v2.0" 
<tim### [at] gmxde> wrote:

> Still, the message POV-Ray issues tells me to restart
> POV-Ray. Isn't there some way around that?

So if a program tells you to take a gun and shoot your neighbor, you will do
that as well? ;-)  In fact this is just a precaution, and if POV-Ray for
Windows is still working after this message, then there probably isn't a
dangerous problem...

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org

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In article <3f118cfd@news.povray.org> , "Tim Nikias v2.0" 
<tim### [at] gmxde> wrote:

> OTOH, I don't know what is actually overflowing, so
> I might be suggesting complete bullsh** here. But isn't
> there a possibility for a more user-friendly approach?
> Like a message telling me "Don't use so many freakin'
> radiosity samples, it cracks me up!" or so?

This isn't a message that comes from POV-Ray itself.  If an application runs
out of memory in a certain way (that is on the stack), the operating system
will notice.  Usually an application then crashes unless it is able to catch
this notice from the operating system.  This is what POV-Ray for Windows
does.

> So, then just out of interest: what is actually placed in
> the stack which overflows?

The stack itself has a limited size.  It cannot really be explained to a
non-programmer well at all...sorry!

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org

Post a reply to this message

> The stack itself has a limited size.  It cannot really be explained to a
> non-programmer well at all...sorry!

I am a programmer, but only novice. I was just interested
in the type of data. Rays, samples, colors, statistics for
color calculations...

Interested just out of curiosity, not because I could actually do
something about that... :-)

But nevermind, you probably have more important issues
at hand than explaining details I couldn't even change something
about. I just like to put my nose everywhere... :-)


-- 
Tim Nikias v2.0
Homepage: http://www.digitaltwilight.de/no_lights

>
> > OTOH, I don't know what is actually overflowing, so
> > I might be suggesting complete bullsh** here. But isn't
> > there a possibility for a more user-friendly approach?
> > Like a message telling me "Don't use so many freakin'
> > radiosity samples, it cracks me up!" or so?
>
> This isn't a message that comes from POV-Ray itself.  If an application
runs
> out of memory in a certain way (that is on the stack), the operating
system
> will notice.  Usually an application then crashes unless it is able to
catch
> this notice from the operating system.  This is what POV-Ray for Windows
> does.
>
> > So, then just out of interest: what is actually placed in
> > the stack which overflows?
>
> The stack itself has a limited size.  It cannot really be explained to a
> non-programmer well at all...sorry!
>
>     Thorsten
>
> ____________________________________________________
> Thorsten Froehlich, Duisburg, Germany
> e-mail: tho### [at] trfde
>
> Visit POV-Ray on the web: http://mac.povray.org


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> So if a program tells you to take a gun and shoot your neighbor, you will
do
> that as well? ;-)  In fact this is just a precaution, and if POV-Ray for
> Windows is still working after this message, then there probably isn't a
> dangerous problem...

Nah. I'd only do what POV-Ray tells me. ;-)

-- 
Tim Nikias v2.0
Homepage: http://www.digitaltwilight.de/no_lights



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