Here's a csg glass I was working on quite a while ago, but now that I'm
trying some glass textures again, I was just wondering how I could get
rid of the darker and lighter rings on the glass.  I've changed the
material since this render, but this material still gave the same rings:

Is there a better material that I can use for glass?

            -Thanks


material {
    texture{
        pigment {rgbf 1}
        finish {
            reflection .4
            specular 1
            roughness .008
            blinn 1
            conserve_energy
        }
    }
    interior {
        ior 1.5
        media {
            absorption 1
            method 3
        }
    }
}

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Reusser wrote:
> 
> Here's a csg glass I was working on quite a while ago, but now that I'm
> trying some glass textures again, I was just wondering how I could get
> rid of the darker and lighter rings on the glass.  I've changed the
> material since this render, but this material still gave the same rings:
> 
> Is there a better material that I can use for glass?
> 

To me the reflection structures look quite natural, the 'rings' are
probably caused by multiple reflection on inner and outer surface of the
glass.  

You could try reflection_type 1 variable reflection, but i'm not sure if
that would help.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/

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On Fri, 25 May 2001 21:22:41 -0500, Reusser wrote:

>Here's a csg glass I was working on quite a while ago, but now that I'm
>trying some glass textures again, I was just wondering how I could get
>rid of the darker and lighter rings on the glass.  I've changed the
>material since this render, but this material still gave the same rings:

Can't really advise on the material, but the caustics look great. 

-- 
Cheers
Steve              email mailto:ste### [at] zeroppsuklinuxnet

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web http://www.zeropps.uklinux.net/

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In article <3B0F1370.646A3288@chorus.net>, Reusser says...
> Here's a csg glass I was working on quite a while ago, but now that I'm
> trying some glass textures again, I was just wondering how I could get
> rid of the darker and lighter rings on the glass.  I've changed the
> material since this render, but this material still gave the same rings:
> 
> Is there a better material that I can use for glass?
> 
This is one beautiful glass! Sorry I cannot advise you on how to make it 
even better :(
-- 
Regards,  Sander

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On Sat, 26 May 2001 09:56:11 +0200, Christoph Hormann wrote:

>To me the reflection structures look quite natural, the 'rings' are
>probably caused by multiple reflection on inner and outer surface of the
>glass.  
>
>You could try reflection_type 1 variable reflection, but i'm not sure if
>that would help.

I've just been thinking about this and remembered a problem I had a bout a 
year ago, it was solved by putting max trace level up a bit, I think I put
it up to about 26, not sure of the number. 

-- 
Cheers
Steve              email mailto:ste### [at] zeroppsuklinuxnet

%HAV-A-NICEDAY Error not enough coffee  0 pps. 

web http://www.zeropps.uklinux.net/

or  http://start.at/zero-pps

  1:45pm  up 113 days, 14:33,  2 users,  load average: 1.34, 1.25, 1.09

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Steve wrote:
> 
> I've just been thinking about this and remembered a problem I had a bout a
> year ago, it was solved by putting max trace level up a bit, I think I put
> it up to about 26, not sure of the number.
> 

Insufficient max_trace_level usually leads to black spots in the glass so
i'm quite sure this is not the problem here.  

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/

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