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From: Tor Olav Kristensen
Subject: Entering changed (70KB) - 1 attachment
Date: 21 Oct 2003 20:23:52
Message: <Xns941BE3C91DE38torolavkhotmailcom@204.213.191.226>
I have changed the "landscape" a little.
Now it is made with only two isosurfaces.

The surface beneath the "hoses" has trails
that are made with "negative blobbing".
(I.e. "Hoses" with a little greater radius
has been subtracted from the surface.)

I gave the hoses a little magenta tint to
make them stand out a little from the
surface beneath.

To speed up the rendering I made the main
light source shadowless too.

Antialiasing was very slow so I rendered
the image twice the size that it is now
and then used an image editor program to
scale down the image (bicubic resampling).


I hope you like it.


Tor Olav


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Attachments:
Download 'Sombrero03_14.jpg' (70 KB)

Preview of image 'Sombrero03_14.jpg'
Sombrero03_14.jpg


 

From: JANWV
Subject: Re: Entering changed (70KB) - 1 attachment
Date: 22 Oct 2003 06:16:12
Message: <3f9620ac@news.povray.org>
i like this one much better as the previous one.


JWV

"Tor Olav Kristensen" <tor_olav_kCURLYAhotmail.com> wrote in message
news:Xns### [at] 204213191226...
>
> I have changed the "landscape" a little.
> Now it is made with only two isosurfaces.
>
> The surface beneath the "hoses" has trails
> that are made with "negative blobbing".
> (I.e. "Hoses" with a little greater radius
> has been subtracted from the surface.)
>
> I gave the hoses a little magenta tint to
> make them stand out a little from the
> surface beneath.
>
> To speed up the rendering I made the main
> light source shadowless too.
>
> Antialiasing was very slow so I rendered
> the image twice the size that it is now
> and then used an image editor program to
> scale down the image (bicubic resampling).
>
>
> I hope you like it.
>
>
> Tor Olav
>
>


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From: Slime
Subject: Re: Entering changed (70KB) - 1 attachment
Date: 22 Oct 2003 06:44:05
Message: <3f962735$1@news.povray.org>
Nice image, it's very smooth. Looks like some sort of smooth cloth. The
lighting and colors are great, too. I like it a lot better than the previous
version.

> Antialiasing was very slow so I rendered
> the image twice the size that it is now
> and then used an image editor program to
> scale down the image (bicubic resampling).

It shows. You need more samples than that to create smooth lines, and the
jagged edges are definitely hurting the smoothness of this image. I
recommend you try AA method 2 for your final render.

 - Slime
 [ http://www.slimeland.com/ ]


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From: Slime
Subject: Re: Entering changed (70KB) - 1 attachment
Date: 22 Oct 2003 06:48:37
Message: <3f962845$1@news.povray.org>
> > Antialiasing was very slow so I rendered
> > the image twice the size that it is now
> > and then used an image editor program to
> > scale down the image (bicubic resampling).
>
> It shows. You need more samples than that to create smooth lines, and the
> jagged edges are definitely hurting the smoothness of this image. I
> recommend you try AA method 2 for your final render.

By the way, using AA method 1 with +R2 (2x2 samples) and, say, +A0.2 or so,
would have created the same effect in a lesser amount of time, since it's
just like doing a render at twice the size, only pixels which don't need the
AA aren't supersampled.

Well, actually, I guess that's not entirely true, since it would have to
take 4 *additional* samples per pixel, for a total of 5 samples per AA'ed
pixel. But after factoring in the number of pixels which would *not* have to
be supersampled, there's probably more gained than lost. Either way, +A0.0
+R2 would have done the same thing you did without the need for resizing
afterwards.

 - Slime
 [ http://www.slimeland.com/ ]


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From: Roberto A 
Subject: Re: Entering changed (70KB) - 1 attachment
Date: 22 Oct 2003 12:19:04
Message: <3f9675b8@news.povray.org>
> i like this one much better as the previous one.

So do I.


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From: Dave Matthews
Subject: Re: Entering changed (70KB) - 1 attachment
Date: 22 Oct 2003 12:45:02
Message: <web.3f967abc9e86ae3b8062416c0@news.povray.org>
Tor Olav Kristensen wrote:

>The surface beneath the "hoses" has trails
>that are made with "negative blobbing".
>(I.e. "Hoses" with a little greater radius
>has been subtracted from the surface.)
>
I like that effect.  How do you make the "hose" isosurface?

Thanks

Dave Matthews


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From: FernandoD
Subject: Re: Entering changed (70KB) - 1 attachment
Date: 22 Oct 2003 13:55:00
Message: <web.3f968b6e9e86ae3b4580d3f50@news.povray.org>
Hi all,

There is something weird with the image. Even though I have the speakers all
cranked up, I cannot hear Marble Madness tunes. ;-)

Great pic.


Best regards / Fernando


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From: Marc Jacquier
Subject: Re: Entering changed (70KB) - 1 attachment
Date: 22 Oct 2003 15:06:45
Message: <3f969d05$1@news.povray.org>
Do you feel better with that link? ;-)
http://www.bodenstaendig.de/marble/misc.htm

Marc
"FernandoD" <nomail@nomail> a écrit dans le message de news:
web.3f968b6e9e86ae3b4580d3f50@news.povray.org...
> Hi all,
>
> There is something weird with the image. Even though I have the speakers
all
> cranked up, I cannot hear Marble Madness tunes. ;-)
>
> Great pic.
>
>
> Best regards / Fernando
>


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From: Tor Olav Kristensen
Subject: Re: Entering changed (70KB) - 1 attachment
Date: 22 Oct 2003 21:03:58
Message: <Xns941CEAA56737Dtorolavkhotmailcom@204.213.191.226>
Tank you all for positive comments and suggestion.

I have now started a new rendering with the ant-
aliasing method that Slime suggested. (It seems
that I should take a closer look at the anti-alias
section in the manual.)

Now I am a little sad because I must have missed
many "classic" arcade games (like marble madness).

It looks fun to play !


Tor Olav


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From: Tor Olav Kristensen
Subject: Re: Entering changed (70KB) - 1 attachment
Date: 22 Oct 2003 21:22:40
Message: <Xns941CEDD114341torolavkhotmailcom@204.213.191.226>
"Dave Matthews" <dma### [at] wrmnwestmnscuedu> wrote in 
news:web.3f967abc9e86ae3b8062416c0@news.povray.org:

> Tor Olav Kristensen wrote:
> 
>>The surface beneath the "hoses" has trails
>>that are made with "negative blobbing".
>>(I.e. "Hoses" with a little greater radius
>>has been subtracted from the surface.)
>>
> I like that effect. 

If you don't already know how to do this, then you
can find some info about about how to do it here:

http://news.povray.org/povray.general/20681


> How do you make the "hose" isosurface?

I will try to find time to clean up the code and
post it somewhere.

In the meantime it could be useful to have a look
at the code for this image:

http://home.no/t-o-k/povray/Isosurface-Cubic_Space_Division.jpg

You can find the sourcecode for it at this page:

http://home.no/t-o-k/povray

(The way the "hose" isosurface is made, is not very
different from the way the "bars" are made in that
image.)


Tor Olav


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