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19 Nov 2024 06:29:43 EST (-0500)
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From: kurtz le pirate
Subject: glassware - 116Ko - bouchon.jpg (1/1)
Date: 20 Mar 2005 11:38:32
Message: <kurtzlepirate-0734F1.17382720032005@news.povray.org>
hello,

any comments ?

regards


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From: James D
Subject: Re: glassware - 116Ko - bouchon.jpg (1/1)
Date: 20 Mar 2005 12:45:48
Message: <423db6cc$1@news.povray.org>
Looks good.  But I don't know, the shadow looks strange.


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From: Maurice
Subject: Re: glassware - 116Ko - bouchon.jpg (1/1)
Date: 20 Mar 2005 14:00:28
Message: <423dc84c$1@news.povray.org>
kurtz le pirate wrote:
> hello,
> 
> any comments ?
> 

That part that goes into the bottleneck should be matted or roughened, no?

Nice image.


-- 
Maurice

http://get-me.to/Hendrix

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From: Rarius
Subject: Re: glassware - 116Ko - bouchon.jpg (1/1)
Date: 20 Mar 2005 15:44:44
Message: <423de0bc@news.povray.org>
"kurtz le pirate" <kur### [at] yahoofr> wrote in message 
news:kurtzlepirate-0734F1.17382720032005@news.povray.org...
> hello,
>
> any comments ?

I'd suggest rounding off the edges of the wide disk... You don't get sharp 
aedges like that on glassware.
It would be nice to round off the edges of the part that goes into the 
bottleneck, but as its a cone that is a little more difficult.

Rarius


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From: Rick Measham
Subject: Re: glassware - 116Ko - bouchon.jpg (1/1)
Date: 20 Mar 2005 17:18:41
Message: <423df6c1@news.povray.org>
Rarius wrote:
> I'd suggest rounding off the edges of the wide disk... You don't get sharp 
> aedges like that on glassware.

Round_Cylinder in shapes.inc

> It would be nice to round off the edges of the part that goes into the 
> bottleneck, but as its a cone that is a little more difficult.

Round_Cone in shapes.inc


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From: Rick Measham
Subject: Re: glassware - 116Ko - bouchon.jpg (1/1)
Date: 20 Mar 2005 17:22:49
Message: <423df7b9@news.povray.org>
kurtz le pirate wrote:
> any comments ?

Looks good!

Things I especially like:
1. The sphere rounds out into the cylinder
2. Likewise with the cone

Is the wavy line a frosting as normally appears on these things to help 
seal the bottle? If so, I'd like to see it moved up the cone and the 
complete frosting follow it up so that most of the cone is frosted.

If it *is* frosting, it's very very cool.

I'd like to see a little rounding on the edges (as posted elsewhere, 
Round_Cylinder and Round_Cone in shapes.inc)

Overall though, it really looks good!

Cheers!
Rick


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From: Rick Measham
Subject: Re: glassware - 116Ko - bouchon.jpg (1/1)
Date: 20 Mar 2005 17:25:31
Message: <423df85b$1@news.povray.org>
James D wrote:
> Looks good.  But I don't know, the shadow looks strange.

It's the glass' IOR (incidence of refraction?) that stops light passing 
directly through. As glass gets thicker it's more pronounced so that 
although it appears clear (the thin-end of the cone), almost no light 
passes directly through it, thus you get a dark shaddow. All the light 
entering that end is bounced around inside and end up exiting further up 
the cone at almost the same point as every other bit of light, thus you 
have the ultra bright patches.

Sorry if this is a bit 101 ...

Cheers!
Rick


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From: Alf Peake
Subject: Re: glassware - 116Ko - bouchon.jpg (1/1)
Date: 20 Mar 2005 17:35:35
Message: <423dfab7@news.povray.org>
"Rarius" wrote:
> It would be nice to round off the edges of the part that goes into 
> the bottleneck, but as its a cone that is a little more difficult.

Check Round_Cone macro in shapes.inc

Alf


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From: Alf Peake
Subject: Re: glassware - 116Ko - bouchon.jpg (1/1)
Date: 20 Mar 2005 17:35:36
Message: <423dfab8@news.povray.org>
Hi,

I love glass renders.
Very nice, although I agree with Rarius about the edges.

Alf


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From: Alain
Subject: Re: glassware - 116Ko - bouchon.jpg (1/1)
Date: 20 Mar 2005 18:57:27
Message: <423e0de7$1@news.povray.org>
Rick Measham nous apporta ses lumieres en ce 2005-03-20 17:25:
> James D wrote:
> 
  IOR (incidence of refraction?)
ior = index of refraction. It define by what amount the light get refracted (deviated,
bent) when 
entering the material.

Alain


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