Hello, the images are pixelated for some reason
How I correct this? I am using povray 3.7

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Le 17/12/2024 à 04:51, gulino a écrit :
> Hello, the images are pixelated for some reason
> How I correct this? I am using povray 3.7

I think this is because Antialiasing is not active by default, you 
should enable it.
For example, with these flags, you get a quality antialiasing:
+a0.01 +am2 +r3

If rendering takes to much time (especially if you use radiosity), you 
can set +r3 to +r2 or +r1 to decrease traced rays.

More infos on this wiki page:
http://www.povray.org/documentation/view/3.6.2/223/

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Le 2024-12-16 à 22:51, gulino a écrit :
> Hello, the images are pixelated for some reason
> How I correct this? I am using povray 3.7

How did you manage to get that pixelation ? Did you double the size of 
the image after rendering ?

You should do :
1) Render directly at the desired resolution.
1.1) Some will render at double resolution then scale down by one half.
2) Use antialiasing. The presets do include some antialiased options.

The usual antialiasing use +a0.3 +am1 +r3. That's acceptable in high 
contrast scenes.
In most cases, it's better to use more aggressive settings, like :
+a0.1 +am2 +r3
You may want to go farther, and use +a0.05 all the way down to +a0.001.

Using +am1 will often cause some glitches at the edges of the render 
blocks. +am2 is much better as it never cause any glitches in those areas.

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> From: antoine
where exactly do I put this? I tried to write +a0.01 +am2 +r3 in the .pov file
but it gave an error

> From: Alain Martel
I didn't do anything, I downloaded povray yesterday and it was already like this
when I tested the example models. The resolution is 512 x 384, is this normal?
Can I change this?

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"gulino" <nomail@nomail> wrote:
> > From: antoine
> where exactly do I put this? I tried to write +a0.01 +am2 +r3 in the .pov file
> but it gave an error
>
> > From: Alain Martel
> I didn't do anything, I downloaded povray yesterday and it was already like this
> when I tested the example models. The resolution is 512 x 384, is this normal?
> Can I change this?

if it's on Windows, you have the drop-down menu to select the resolution and
stock anti-aliasing settings.

you also have the "command line" section at the top of the editor to input any
render control settings.

Linux users can chime in, or you can check out the instructions on
wiki.povray.org

https://wiki.povray.org/content/Reference:Tracing_Options#Anti-Aliasing_Options

- BE

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hi,

"Bald Eagle" <cre### [at] netscapenet> wrote:
> "gulino" <nomail@nomail> wrote:
> > > From: antoine
> > where exactly do I put this? I tried to write +a0.01 +am2 +r3 in the .pov file
> > but it gave an error
> >
> > > From: Alain Martel
> > I didn't do anything, I downloaded povray yesterday and it was already like this
> > when I tested the example models. The resolution is 512 x 384, is this normal?
> > Can I change this?

<https://wiki.povray.org/content/Documentation:Tutorial_Section_2.2#Setting_POV-Ray_Options>

the 'povray.ini' file, for instance, is a "good place" to set your preferred
default resolution, and other stuff.


regards, jr.

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Le 2024-12-17 à 08:31, gulino a écrit :
> 
>> From: antoine
> where exactly do I put this? I tried to write +a0.01 +am2 +r3 in the .pov file
> but it gave an error

Those are Command Line parameters.
You don't write «+a0.01 +am2 +r3» in the scene file itself. You write it 
in the «Command line» box located right from the resolution Drop list.

> 
>> From: Alain Martel
> I didn't do anything, I downloaded povray yesterday and it was already like this
> when I tested the example models. The resolution is 512 x 384, is this normal?
> Can I change this?
> 
That resolution, [512x384, No AA], is the one selected by default when 
you render your first scene. You can easily change it. Just click on it 
and select the resolution that you want to use.
The one just under is [512x384, AA 0.3]. The «AA 0.3» mean antialias 
enabled with threshold set at 0.3.
On Windows ? Look at the line just above the editor, all the way to the 
left. That's a drop list from where you can select carious resolutions 
and enable AA.
You can change it's content by editing the quickres.ini file. From the 
menu bar : Tools|Edit resolution INI file.

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Ok problem solved, merci
I am using +a0.01 +am2 +r3 with 1028x768 No AA and looks good.

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"Bald Eagle" <cre### [at] netscapenet> wrote:
> "gulino" <nomail@nomail> wrote:

> > I didn't do anything, I downloaded povray yesterday and it was already
> > like this when I tested the example models. The resolution is 512 x 384, is
> > this normal?
> > Can I change this?
>
> if it's on Windows, you have the drop-down menu to select the resolution and
> stock anti-aliasing settings.

Yes, and the drop-down menu has all of the various resolutions that are included
in a file called 'quickres.inc'. You can add to or change those default
resolutions by editing that file. If it is not already open in your POV-ray
editor window in the Windows GUI, go to the 'Tools' tab at the top and select
'Edit resolution INI file.' That will open quickres.ini. Then you can write-in
other resolutions.

For example, the following is, I think, one of the default resolution blocks
there:

[512x384]
Width=512
Height=384
Antialias=On
Antialias_Threshold=0.3

You can write a new one:

[1920X1080 widescreen]
Width=1920
Height=1080
;Antialias=On
;Antialias_Threshold=0.3

Then the drop-down resolution menu will include that for your later use. (The
semicolons can be used to commment-out those particular entries, just like using
double-slashes // for comments in a scene file.)

My own quickres.ini file is chock-full of customized entries!

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Le 2024-12-20 à 12:42, Kenneth a écrit :
> "Bald Eagle" <cre### [at] netscapenet> wrote:
>> "gulino" <nomail@nomail> wrote:
> 
>>> I didn't do anything, I downloaded povray yesterday and it was already
>>> like this when I tested the example models. The resolution is 512 x 384, is
>>> this normal?
>>> Can I change this?
>>
>> if it's on Windows, you have the drop-down menu to select the resolution and
>> stock anti-aliasing settings.
> 
> Yes, and the drop-down menu has all of the various resolutions that are included
> in a file called 'quickres.inc'. You can add to or change those default
> resolutions by editing that file. If it is not already open in your POV-ray
> editor window in the Windows GUI, go to the 'Tools' tab at the top and select
> 'Edit resolution INI file.' That will open quickres.ini. Then you can write-in
> other resolutions.
> 
> For example, the following is, I think, one of the default resolution blocks
> there:
> 
> [512x384]
> Width=512
> Height=384
> Antialias=On
> Antialias_Threshold=0.3
> 
> You can write a new one:
> 
> [1920X1080 widescreen]
> Width=1920
> Height=1080
> ;Antialias=On
> ;Antialias_Threshold=0.3
> 
> Then the drop-down resolution menu will include that for your later use. (The
> semicolons can be used to commment-out those particular entries, just like using
> double-slashes // for comments in a scene file.)
> 
> My own quickres.ini file is chock-full of customized entries!
> 
> 
> 
> 
Mine have at least double the number of entries of the default one, 
including wide screen, double screen, double wide, triple screen and 
triple wide options.

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