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From: Thomas de Groot
Subject: Postcard from the Permian [wip 01]
Date: 26 Jul 2013 07:13:39
Message: <51f259e3@news.povray.org>
If you have been following carefully my image naming, you will have 
noticed one missing between numbers 1 and 6 ;-)

Elements of Geology 4 is about the Permian and the scene is situated in 
a desert in the middle of supercontinent Pangea, south of the 'Central 
Pangean Mountains' (alleghenian orogeny). It consists of isosurfaces and 
Poser animals.

In this image a couple of issues remain: an artefact in the sand 
isosurface, and one concerning radiosity on the shadow boundary between 
the rock and the sand isosurfaces. Otherwise, the scene building part is 
finished.

Thomas


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From: MichaelJF
Subject: Re: Postcard from the Permian [wip 01]
Date: 27 Jul 2013 13:30:02
Message: <web.51f4032c10dbf52140c90380@news.povray.org>
Thomas de Groot <tho### [at] degrootorg> wrote:
> If you have been following carefully my image naming, you will have
> noticed one missing between numbers 1 and 6 ;-)
>
> Elements of Geology 4 is about the Permian and the scene is situated in
> a desert in the middle of supercontinent Pangea, south of the 'Central
> Pangean Mountains' (alleghenian orogeny). It consists of isosurfaces and
> Poser animals.
>
> In this image a couple of issues remain: an artefact in the sand
> isosurface, and one concerning radiosity on the shadow boundary between
> the rock and the sand isosurfaces. Otherwise, the scene building part is
> finished.
>
> Thomas

Another fine one from you. Yes the sand needs some additional work. I propose to
change the skin of the lizards slightly to contrast them more from the rocks.
Not much, but may be a little bit more to green or orange or both.

Are you trying to best Normand with the image count this round?

Best regards,
Michael


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From: Thomas de Groot
Subject: Re: Postcard from the Permian [wip 01]
Date: 28 Jul 2013 03:10:01
Message: <51f4c3c9$1@news.povray.org>
On 27-7-2013 19:28, MichaelJF wrote:
> Another fine one from you. Yes the sand needs some additional work. I propose to
> change the skin of the lizards slightly to contrast them more from the rocks.
> Not much, but may be a little bit more to green or orange or both.

The sand surface function has now been worked on, although I am still 
not entirely satisfied. I am tweaking the texture, and I have added 
little quartz grains to the surface.

Yes, the skin could be improved. I shall investigate; thanks!

>
> Are you trying to best Normand with the image count this round?

It looks like it, doesn't it? ;-)  This will be the only time though, I 
guess. The theme is so much part of my daily life that the images just 
spill out of my hands.

Thomas


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From: Thomas de Groot
Subject: Re: Postcard from the Permian [wip 02]
Date: 28 Jul 2013 10:15:41
Message: <51f5278d@news.povray.org>
What about this?

I have some doubts about the quartz grains I added...

Thomas


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From: James Holsenback
Subject: Re: Postcard from the Permian [wip 02]
Date: 28 Jul 2013 10:17:46
Message: <51f5280a$1@news.povray.org>
On 07/28/2013 10:15 AM, Thomas de Groot wrote:
> What about this?

mo betta


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From: Thomas de Groot
Subject: Re: Postcard from the Permian [wip 02]
Date: 28 Jul 2013 10:28:02
Message: <51f52a72$1@news.povray.org>
On 28-7-2013 16:17, James Holsenback wrote:
> On 07/28/2013 10:15 AM, Thomas de Groot wrote:
>> What about this?
>
> mo betta
>

This guy knows what I'm talking about ;-)


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From: Stephen
Subject: Re: Postcard from the Permian [wip 02]
Date: 28 Jul 2013 10:42:03
Message: <51f52dbb$1@news.povray.org>
On 28/07/2013 3:15 PM, Thomas de Groot wrote:
> What about this?
>
> I have some doubts about the quartz grains I added...
>

Very soft sand, indeed. It would make a nice beach in RL.


-- 
Regards
     Stephen


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From: Cousin Ricky
Subject: Re: Postcard from the Permian [wip 02]
Date: 28 Jul 2013 13:45:01
Message: <web.51f557b63bf6a6e2540235480@news.povray.org>
Thomas de Groot <tho### [at] degrootorg> wrote:
> What about this?

The tetrapods are easier to see with the new skin colors.

The sand looks a bit too turbulent, but is otherwise an improvement over the
straight corrugation of the first draft.  Also, the form of the sand abruptly
almost disappears in the shadow areas, and the animal on the right looks like
it's floating.  Did you raise the radiosity error_bound for this draft?

> I have some doubts about the quartz grains I added...

They don't seem to scale with distance from the camera.


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From: clipka
Subject: Re: Postcard from the Permian [wip 02]
Date: 29 Jul 2013 00:47:12
Message: <51f5f3d0@news.povray.org>
Am 28.07.2013 19:41, schrieb Cousin Ricky:

> Also, the form of the sand abruptly
> almost disappears in the shadow areas,

Setting "radiosity { normal on }" should help with this; it does add to 
the rendering time though.


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From: Thomas de Groot
Subject: Re: Postcard from the Permian [wip 02]
Date: 29 Jul 2013 03:01:57
Message: <51f61365$1@news.povray.org>
On 29-7-2013 6:46, clipka wrote:
> Am 28.07.2013 19:41, schrieb Cousin Ricky:
>
>> Also, the form of the sand abruptly
>> almost disappears in the shadow areas,
>
> Setting "radiosity { normal on }" should help with this; it does add to
> the rendering time though.
>

Not a problem. Only 40 minutes for this image :-)

Thomas


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