I'm developing a scene using Jaimes Vives' non-media clouds include file.
Oddly enough, when I use MegaPov 0.5 and use the line
#version unofficial MegaPov 0.5;
the clouds disappear. If I change the 0.5 back to 0.4 but still use the same
binary, the clouds reappear.
Has anyone else had similar problems? Is this just a side effect from a new
feature, or is it bug?

Darcy

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Darcy Johnston <djo### [at] inamecomNOSPAM> wrote in article
<39304e0a$1@news.povray.org>...
> I'm developing a scene using Jaimes Vives' non-media clouds include file.
> Oddly enough, when I use MegaPov 0.5 and use the line
> #version unofficial MegaPov 0.5;
> the clouds disappear. If I change the 0.5 back to 0.4 but still use the
same
> binary, the clouds reappear.
> Has anyone else had similar problems? Is this just a side effect from a
new
> feature, or is it bug?

I don't know.   I have had other problems, though.  The most serious is the
disc object.  Whenever combined with any other primitive, it causes the
intersection, difference, whatever, to disappear. This is especially
noticable when you #declare the object and use it over and over again. None
show.  Nathan, I know you're gonna read this, so is there anything you can
do about it??

H.E. Day
<><

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I've run into this problem using the granite pattern (on which I think 
Vives' clouds were based). I wonder if this is a result of the
re-hashing of the noise, bozo, etc. patterns. 
For a fix try decreasing the color_map indecies.

Abe

Darcy Johnston wrote:
> 
> I'm developing a scene using Jaimes Vives' non-media clouds include file.
> Oddly enough, when I use MegaPov 0.5 and use the line
> #version unofficial MegaPov 0.5;
> the clouds disappear. If I change the 0.5 back to 0.4 but still use the same
> binary, the clouds reappear.
> Has anyone else had similar problems? Is this just a side effect from a new
> feature, or is it bug?
> 
> Darcy

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Darcy Johnston <djo### [at] inamecomNOSPAM> wrote in message
news:39304e0a$1@news.povray.org...
> I'm developing a scene using Jaimes Vives' non-media clouds include file.
> Oddly enough, when I use MegaPov 0.5 and use the line
> #version unofficial MegaPov 0.5;
> the clouds disappear. If I change the 0.5 back to 0.4 but still use the
same
> binary, the clouds reappear.
> Has anyone else had similar problems? Is this just a side effect from a
new
> feature, or is it bug?
>

  Yes, I've had a similar problem with the lensflare or lenseffects. I don't
understand it, with 0.5 its gone, 0.4 its there.  Hmmm.
          Kane

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Darcy Johnston wrote:
> 
> I'm developing a scene using Jaimes Vives' non-media clouds include file.
> Oddly enough, when I use MegaPov 0.5 and use the line
> #version unofficial MegaPov 0.5;
> the clouds disappear. If I change the 0.5 back to 0.4 but still use the same
> binary, the clouds reappear.
> Has anyone else had similar problems? Is this just a side effect from a new
> feature, or is it bug?
> 

I had very similar problems. I think the problem is the fixed noise function
(wrinkles, bozo, bumps, dents, turbulence). It actually works correctly now, but
inevitably breaks some scenes.
Try increasing the dense part of the colour_map or density_map. For example, if
the old colour_map was
{[.1 rgb 1][.3 rgb 0]}
try changing it to
{[.2 rgb 1][.4 rgb 0]}

Worked for me. It will take some tweaking to get back the old look.

-- 
Margus Ramst

Personal e-mail: mar### [at] peakeduee
TAG (Team Assistance Group) e-mail: mar### [at] tagpovrayorg

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H. E. Day <Pov### [at] aolcom> wrote...
> I don't know.   I have had other problems, though.  The most serious is
the
> disc object.  Whenever combined with any other primitive, it causes the
> intersection, difference, whatever, to disappear. This is especially
> noticable when you #declare the object and use it over and over again.
None
> show.  Nathan, I know you're gonna read this, so is there anything you can
> do about it??

Yes.  That is caused by a bug in the "fast disc patch".  I'm going to remove
the patch for 0.5a (which will be available soon).

-Nathan

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kane <ann### [at] mindspringcom> wrote...
>
>   Yes, I've had a similar problem with the lensflare or lenseffects. I
don't
> understand it, with 0.5 its gone, 0.4 its there.  Hmmm.
>           Kane

That's caused by a bug in the fast disc patch, which will be removed.

-Nathan

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Abe <bul### [at] taconicnet> wrote...
> I've run into this problem using the granite pattern (on which I think 
> Vives' clouds were based). I wonder if this is a result of the
> re-hashing of the noise, bozo, etc. patterns. 
> For a fix try decreasing the color_map indecies.
> 
> Abe

Past experiences would tell me that this is the problem.

-Nathan

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Nathan Kopp <Nat### [at] Koppcom> wrote...
>
> kane <ann### [at] mindspringcom> wrote...
> >
> >   Yes, I've had a similar problem with the lensflare or lenseffects. I
> don't
> > understand it, with 0.5 its gone, 0.4 its there.  Hmmm.
> >           Kane
>
> That's caused by a bug in the fast disc patch, which will be removed.

Or, if anyone wants to find a fix for this so we can keep the fast disc
patch, go ahead!

-Nathan

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1. Send the problematic scene or scenes on my mail or  this news group.

Wating ...
--
***************************
      dmi### [at] xoommailcom
http://members.xoom.com/dmilos/
***************************
Nathan Kopp <Nat### [at] Koppcom> wrote in message
news:393295db@news.povray.org...
>
> Nathan Kopp <Nat### [at] Koppcom> wrote...
> >
> > kane <ann### [at] mindspringcom> wrote...
> > >
> > >   Yes, I've had a similar problem with the lensflare or lenseffects. I
> > don't
> > > understand it, with 0.5 its gone, 0.4 its there.  Hmmm.
> > >           Kane
> >
> > That's caused by a bug in the fast disc patch, which will be removed.
>
> Or, if anyone wants to find a fix for this so we can keep the fast disc
> patch, go ahead!
>
> -Nathan
>
>

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