Hi!

I had a POV-Ray image with an height-field. It were smooth mountains which
looked quite good. After I have bought a new harddisk, I reinstalled POV-Ray
and I rendered the file again. The file and the tga-file were exactly the
same. Now I see very pixelated mountains. It's the same POV-Ray version.
Does anyone know a solution???

THANKS A LOT!!!

J T

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J Tellings wrote:
> 
> Hi!
> 
> I had a POV-Ray image with an height-field. It were smooth mountains which
> looked quite good. After I have bought a new harddisk, I reinstalled POV-Ray
> and I rendered the file again. The file and the tga-file were exactly the
> same. Now I see very pixelated mountains. It's the same POV-Ray version.
> Does anyone know a solution???

Let me see if i understand this right:  You have a POV Scene that rendered
nicely (using a certain heightfield data file) and after reinstalling
POV-Ray (same version) and rendering (same scene with the same heightfield
file and with the same options at command line and in ini file) the result
is different?

Sorry, but the only solution would be to find out what's wrong in your
statement.

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 28 Feb. 2003 _____./\/^>_*_<^\/\.______

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"Christoph Hormann" <chr### [at] gmxde> wrote in message
news:3E887403.A48CDA41@gmx.de...
>
>
> J Tellings wrote:
> >
> > Hi!
> >
> > I had a POV-Ray image with an height-field. It were smooth mountains
which
> > looked quite good. After I have bought a new harddisk, I reinstalled
POV-Ray
> > and I rendered the file again. The file and the tga-file were exactly
the
> > same. Now I see very pixelated mountains. It's the same POV-Ray version.
> > Does anyone know a solution???
>
> Let me see if i understand this right:  You have a POV Scene that rendered
> nicely (using a certain heightfield data file) and after reinstalling
> POV-Ray (same version) and rendering (same scene with the same heightfield
> file and with the same options at command line and in ini file) the result
> is different?
>
> Sorry, but the only solution would be to find out what's wrong in your
> statement.

I said it a bit wrong. I had a POV Scene that rendered nicely. A few months
later, I rendered it again but now the mountains were very 'pixelated'. I
haven't changed anything, as far as I know.

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J Tellings wrote:
> 
> ... as far as I know.

This is exactly what i meant.  You should check what things you have
changed and then you will find the problem.

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 28 Feb. 2003 _____./\/^>_*_<^\/\.______

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Christoph Hormann wrote:
>This is exactly what i meant.  You should check what things you have
>changed and then you will find the problem.

I would be interested if you find a reason for this. I recently
experienced a similar problem. The file renders fine on my Mac,
but a height field is very noisy when the same file is rendered
on a unix machine. I assume it has something to do with the fact
that I do not have all the right versions of the image include
files (when I compiled the latest unix version), but it's odd
because I thought it had rendered them fine before, and the code
does compile (seemingly) okay.

Post a reply to this message

Renderdog wrote:
> 
> >This is exactly what i meant.  You should check what things you have
> >changed and then you will find the problem.
> 
> I would be interested if you find a reason for this. I recently
> experienced a similar problem. The file renders fine on my Mac,
> but a height field is very noisy when the same file is rendered
> on a unix machine. [...]

Here applies the same (although there is of course the risk of some minor
differences due to different compilers, especially if you do something you
are not supposed to do).

You will have to check for the differences, most important of course if
scene and data files are the same (really *are* identical, not just look
like the same) and apart from that if the command line and ini file
options used are identical.

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 28 Feb. 2003 _____./\/^>_*_<^\/\.______

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In article <3E8### [at] gmxde> , Christoph Hormann 
<chr### [at] gmxde>  wrote:

> Here applies the same (although there is of course the risk of some minor
> differences due to different compilers, especially if you do something you
> are not supposed to do).
>
> You will have to check for the differences, most important of course if
> scene and data files are the same (really *are* identical, not just look
> like the same) and apart from that if the command line and ini file
> options used are identical.

Windows and Mac platforms statically link to the image support libraries for
PNG, JPEG and TIFF image support.  On any kind of Unix these libs are taken
from the operating system, and this may simply be an incompatible version...

    Thorsten

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

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

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Thorsten Froehlich wrote:
> 
> Windows and Mac platforms statically link to the image support libraries for
> PNG, JPEG and TIFF image support.  On any kind of Unix these libs are taken
> from the operating system, and this may simply be an incompatible version...

Well, of course my suggestion solely referred to using the official
POV-Ray versions (which is statically linked in the linux version as
well).  What people do wrong when compiling and running their own versions
is completely their business (at least as far as povray.newusers is
concerned). :-)

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 28 Feb. 2003 _____./\/^>_*_<^\/\.______

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