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From: Bill Pragnell
Subject: Relativity WIP #2
Date: 2 Jul 2007 06:30:02
Message: <web.4688d365e6adf491731f01d10@news.povray.org>
Hi everyone.

Here's an update on my Relativity project. Almost all the railings are
finished (apart from across the doorway in the top-right corner, and the
stone rail right at the top, centre), and I've put some arches in too. The
render time has risen considerably because of the higher accuracy now
required of the radiosity calculations around the railing sections. With
people and extra detail, this is going to be another mammoth render... :(

The next stage will be putting some grass on the ground outside, and maybe a
tree or two.

Bill


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relativity2.jpg


 

From: Paul Fuller
Subject: Re: Relativity WIP #2
Date: 2 Jul 2007 11:13:50
Message: <4689162e$1@news.povray.org>
Bill Pragnell wrote:
> Hi everyone.
> 
> Here's an update on my Relativity project. Almost all the railings are
> finished (apart from across the doorway in the top-right corner, and the
> stone rail right at the top, centre), and I've put some arches in too. The
> render time has risen considerably because of the higher accuracy now
> required of the radiosity calculations around the railing sections. With
> people and extra detail, this is going to be another mammoth render... :(
> 
> The next stage will be putting some grass on the ground outside, and maybe a
> tree or two.
> 
> Bill
> 
> 
> ------------------------------------------------------------------------
> 
Bravo!


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From: St 
Subject: Re: Relativity WIP #2
Date: 2 Jul 2007 14:24:02
Message: <468942c2$1@news.povray.org>
"Bill Pragnell" <bil### [at] hotmailcom> wrote in message 
news:web.4688d365e6adf491731f01d10@news.povray.org...
> Hi everyone.
>
> Here's an update on my Relativity project. Almost all the railings are
> finished (apart from across the doorway in the top-right corner, and the
> stone rail right at the top, centre), and I've put some arches in too. The
> render time has risen considerably because of the higher accuracy now
> required of the radiosity calculations around the railing sections. With
> people and extra detail, this is going to be another mammoth render... :(

    This is looking good Bill! But just to spoil your render time by a few 
seconds/minutes more, the one thing that hit me, was the lack of a corner 
post on the lower middle railings. Sorry.  :o(


>
> The next stage will be putting some grass on the ground outside, and maybe 
> a
> tree or two.

      Go-frit!   :o)

     ~Steve~


>
> Bill
>


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From: Stephen
Subject: Re: Relativity WIP #2
Date: 3 Jul 2007 03:45:01
Message: <web.4689fd62249c509fc4e49fa40@news.povray.org>
"Bill Pragnell" <bil### [at] hotmailcom> wrote:
> Hi everyone.
>


see it very often :-)
A great project Bill!


Stephen


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From: Bill Pragnell
Subject: Re: Relativity WIP #2
Date: 3 Jul 2007 10:15:02
Message: <web.468a58c7249c509f731f01d10@news.povray.org>
"St." <dot### [at] dotcom> wrote:
>     This is looking good Bill! But just to spoil your render time by a few
> seconds/minutes more, the one thing that hit me, was the lack of a corner
> post on the lower middle railings. Sorry.  :o(

Whoops! For some reason I thought there wasn't one and left it out
deliberately, but you're right. It shall be rectified. Not that I'm going
for an exact replica; I'm not going to bother with arches/lintels over the
doorways, for example.

I'm having a bit of bother with the lighting at the moment. It looks good,
sure, but I'm having trouble getting the radiosity to go fast enough. If
the exterior sections are going to remain over-bright then I'm going to
have to render it double size in order to get acceptable antialiasing on
the relevant edges, which will be a very long render with high-quality
radiosity. I'm not feeling that patient at the moment!

Anyway, onwards...


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From: Bill Pragnell
Subject: Re: Relativity WIP #2
Date: 5 Jul 2007 19:00:06
Message: <web.468d76ff249c509fdba310460@news.povray.org>
Here's the state of play with my grass for outside the structure.

It's my own grass, blades grouped in clumps, clumps placed over square
tiles, tiles put together to fill a rectangular region. Each grass tile is
a single mesh, so I can use the same random-selection-from-an-array trick
as with the bricks.

It's looking quite nice, and the grass only takes up a few MB of peak memory
so POV-Ray should be perfectly happy with more. However, this test with
radiosity took just over an hour to render so I'll probably be looking at a
real slog for the final version. The radiosity on the structure is a little
patchy but i think it'll be perfectly adequate as long as I up the count a
little (it's only 100 at the mo). The texturing on the bricks should hide
any artifacts left over.

Getting there... :)

Bill


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From: Marc
Subject: Re: Relativity WIP #2
Date: 6 Jul 2007 02:41:11
Message: <468de407@news.povray.org>

web.468d76ff249c509fdba310460@news.povray.org...
> Here's the state of play with my grass for outside the structure.
>
I can't tell how nor where but I feel some kind of pattern in grass.
Or maybe it is the ground is too black?

BTW while we are in a Lego trend...:-)
http://homepage.ntlworld.com/andrew.lipson/escher/relativity-1600.jpg

Marc


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From: Bill Pragnell
Subject: Re: Relativity WIP #2
Date: 6 Jul 2007 04:35:03
Message: <web.468dfd87249c509f731f01d10@news.povray.org>
"Marc" <jac### [at] wanadoofr> wrote:
> I can't tell how nor where but I feel some kind of pattern in grass.
Yes, you're right. It's very subtle, but you can just about see the lines of
perspective at the edges of the tiles. Hmm. Must... perfect...

> BTW while we are in a Lego trend...:-)
> http://homepage.ntlworld.com/andrew.lipson/escher/relativity-1600.jpg
Yep, cool isn't it? ...but I posted a link to it in the previous thread! Did
you not see it? :-)

Bill


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From: Marc
Subject: Re: Relativity WIP #2
Date: 6 Jul 2007 05:06:28
Message: <468e0614$1@news.povray.org>

web.468dfd87249c509f731f01d10@news.povray.org...

> Yep, cool isn't it? ...but I posted a link to it in the previous thread! 
> Did
> you not see it? :-)
>
O_o ... I hope so!

No actually I had updated the newsgroup folder in my newsreader and had 
missed it.
Just quoting the contributor's comment.
"but the picture has to be taken from exactly the right place, and boy did 
we get tired of trying to find where that place was"
I had exactly the same problem with my version of Jeff Beck's Guitar Shop.
Was it an issue for you?

Marc


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From: Bill Pragnell
Subject: Re: Relativity WIP #2
Date: 6 Jul 2007 06:10:00
Message: <web.468e144a249c509f731f01d10@news.povray.org>
"Marc" <jac### [at] wanadoofr> wrote:
> "but the picture has to be taken from exactly the right place, and boy did
> we get tired of trying to find where that place was"
> I had exactly the same problem with my version of Jeff Beck's Guitar Shop.
> Was it an issue for you?

Yes, because if you compare my image to the original, you'll notice that the
camera is not in the right place. You'll also notice that my structure is
subtly wrong (I've miscounted some steps somewhere I think), so I suspect
it won't be possible to find the right place either... :(

Oh well, I shall persevere. :)


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