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30 Jun 2024 23:27:13 EDT (-0400)
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From: William F Pokorny
Subject: Re: Cave concept
Date: 2 Mar 2016 10:00:21
Message: <56d70005$1@news.povray.org>
On 03/02/2016 09:15 AM, Paolo Gibellini wrote:
>
> It begins to become an interesting place... and the light is very good!
> ;-)
> Paolo

I had those exact thoughts on seeing this latest image! :-)

Bill P.


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From: Sven Littkowski
Subject: Re: Cave concept
Date: 2 Mar 2016 10:00:25
Message: <56d70009@news.povray.org>
Yes, I like it now more than before, too.

Just - the large crystal in the left foreground is somehow lost and not
fitting (all others are). And another observation: all stalactites and
-mites have too much the same triangular shape. When I was in caves, I
observed some which were like irregular columns, not so triangular. And
they had very wet, smooth surfaces, glossy because of the wetness, and
also levels of different colors because at different times different
minerals were in the water that run down on them.

Maybe, instead of the crystal, a little water pit..?

I try to imagine, the illumination at the background is caused by some
cave entrance on its right side and catches the late afternoon sun
(golden). Seeing light rays coming from the right side in the dusty cave
air would improve that imagination. I like the idea, to be in the darker
area and see the illuminated area in the distance, just the way you are
doing it now. :-)


Hmmm, what about a few fluorescent tiny insects or worms, seen just as
dim greenish-yellow light  dots in the darker areas?   :-D

Or somewhere a part of a hidden treasure chest (not leveled but a bit
diagonal in its positioning), open and full of gold coins of which some
came out and lay on the ground around it?






On 02.03.2016 06:00, Jaime Vives Piqueres wrote:
> Another cave test... with more stalactites, a better lighting and fast
> radiosity.


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From: Jaime Vives Piqueres
Subject: Re: Cave concept
Date: 2 Mar 2016 12:47:24
Message: <56d7272c$1@news.povray.org>
El 02/03/16 a las 13:32, Thomas de Groot escribió:
> Aaah! You are getting somewhere.

   Yes... underground.

> I love this cave.

   Thanks!

--
jaime


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From: Jaime Vives Piqueres
Subject: Re: Cave concept
Date: 2 Mar 2016 12:50:30
Message: <56d727e6$1@news.povray.org>
El 02/03/16 a las 16:00, William F Pokorny escribió:
> On 03/02/2016 09:15 AM, Paolo Gibellini wrote:
>>
>> It begins to become an interesting place... and the light is very
>> good! ;-) Paolo
>
> I had those exact thoughts on seeing this latest image! :-)
>
> Bill P.
>

   Thanks to both! The lighting is supposed to be: daylight from the
rear-right, and a torch or lantern and the interior.

--
jaime


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From: Jaime Vives Piqueres
Subject: Re: Cave concept
Date: 2 Mar 2016 12:55:58
Message: <56d7292e$1@news.povray.org>

> A vast improvement, and I'm glad you found a few places to speed up
> the render.

   Thanks. I just found a way to speed it up a lot: meshrelief.inc by
Bill Pragnell:

http://www.infradead.org/~wmp/macro_meshrelief.html

   Just another thing I somehow missed until today.

> It will be interesting to see your textures, contrasts and myriad
> thoughtful enhancements as this progresses.

   And a lot of fun for me, no doubt... :)

--
jaime


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From: Jaime Vives Piqueres
Subject: Re: Cave concept
Date: 2 Mar 2016 13:01:40
Message: <56d72a84$1@news.povray.org>
El 02/03/16 a las 16:00, Sven Littkowski escribió:
> Just - the large crystal in the left foreground is somehow lost and
> not fitting (all others are).

   The crystals where thrown at random, and should have keep them out at
this moment of the development, but could not resist.

> And another observation: all stalactites and -mites have too much the
> same triangular shape. When I was in caves, I observed some which
> were like irregular columns, not so triangular.

   Yes, specially stalagmites should be more round and irregular.

> Hmmm, what about a few fluorescent tiny insects or worms, seen just
> as dim greenish-yellow light  dots in the darker areas?   :-D

   Maybe... sounds nice, but don't know if the effect would be really
recognizable.

> Or somewhere a part of a hidden treasure chest (not leveled but a
> bit diagonal in its positioning), open and full of gold coins of
> which some came out and lay on the ground around it?
>

   That would be way too typical, I guess... but who knows what I will
find there? :)

--
jaime


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From: Jaime Vives Piqueres
Subject: Re: Cave concept
Date: 2 Mar 2016 17:40:25
Message: <56d76bd9$1@news.povray.org>


> http://www.infradead.org/~wmp/macro_meshrelief.html

   I just had to add: WOW! What a piece of work!

--
jaime


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From: dick balaska
Subject: Re: Cave concept
Date: 2 Mar 2016 18:05:19
Message: <56d771af$1@news.povray.org>
On 3/2/2016 5:40 PM, Jaime Vives Piqueres wrote:

>
>> http://www.infradead.org/~wmp/macro_meshrelief.html
>
>    I just had to add: WOW! What a piece of work!

That site is pretty impressive.
Awesome stone here (but I don't like the girl)
http://www.infradead.org/~wmp/gallery6/beforeafter.jpg

But I love the girl here
http://www.infradead.org/~wmp/gallery6/ghostlight.jpg

-- 
dik


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From: Sven Littkowski
Subject: Re: Cave concept
Date: 4 Mar 2016 23:44:18
Message: <56da6422$1@news.povray.org>
Surprise us! :-)

On 02.03.2016 13:01, Jaime Vives Piqueres wrote:
>   That would be way too typical, I guess... but who knows what I will
> find there? :)


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From: Jaime Vives Piqueres
Subject: Re: Cave concept
Date: 5 Mar 2016 04:06:00
Message: <56daa178@news.povray.org>
Nothing really new in a visual sense, but this image uses now meshes
instead isosurfaces, thanks to meshrelief.inc by Bill Pragnell. Maybe
the detail is not as great, but is very similar and the render time has
dropped insanely (this one has bigger size, more objects, focal blur,
and it renders just under half an hour). Maybe now I will be able to add
translucency and some wet-surfaces effect.

(Yes, I know I overdid the focal blur and it looks like a toy cave... :)

--
jaime


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