On 10/9/2015 8:32 PM, Alain wrote:
> Le 15-10-08 17:12, Stephen a écrit :
>> On 10/8/2015 9:56 PM, Jörg 'Yadgar' Bleimann wrote:
>>> I want to model my now-defunct bathroom scales
>>
>> Sorry I can't help with your media problem, Yadgar.
>> But you reminded me of a jape I did a few years back.
>> I had been working on a crane upgrading the load indicator. I took the
>> old 100 ton scale and put it in my bathroom scales. My wife's screams
>> could be heard from miles away.
>> I did not know she could punch that hard. But it was worth it. ;-)
>>
>
> An 100 TON scale? In a bathroom? That's just plain mean !

Bows :-)

My wife is quite thin so it was an obvious joke.
I also took a "Cold Work" permit book home as well, but chickened out 
giving that to her. She always had a list of jobs for me to do after 
being offshore for two weeks. In the end I thought that it was pushing it.

In case you don't know UK electrical plugs and sockets look like this:

https://s-media-cache-ak0.pinimg.com/236x/5f/1b/a9/5f1ba98a5d187b3f733e8c867d8898eb.jpg

It was fun watching my brother-in-law try to fit this plug into a 
standard socket.

http://www.flameport.com/electric_museum/plugs_13A_non_standard/walsall_gauge_13a_plug.jpg

-- 

Regards
     Stephen

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=?UTF-8?B?SsO2cmcgJ1lhZGdhcicgQmxlaW1hbm4=?= <yazdegird@gmx.de> wrote:
> Hi(gh)!
>
> I want to model my now-defunct bathroom scales and started with the
> glass pane - when viewed edge on, it should display a dark bluish green.
> I used scattering media to achieve this (first attached image) but then
> noticed that the media color almost disappeared when viewed against a
> non-black background (second image). I tried to fix this by adding an
> interior_texture (without reflection) to the material statement, but
> then the media color was even less visible (third image).
>
> What do I wrong? Should I try absorbing media instead?
>
> See you in Khyberspace!
>
> Yadgar

I concur with Clipka and Alain.  Use fade_power 1001, fade_color, and
fade_distance in the media block.  Absorbing media may be easier conceptually,
but it is slower and (in my experience) artifact prone.

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On 9-10-2015 21:56, clipka wrote:
> Am 09.10.2015 um 08:58 schrieb Thomas de Groot:
>> On 8-10-2015 22:56, Jörg 'Yadgar' Bleimann wrote:
>>> What do I wrong? Should I try absorbing media instead?
>>>
>>
>> You certainly might. I am not sure about the physics of glass but maybe
>> it is a combination of scattering and absorption you need?
>
> Nope.
>
> There's virtually no scattering in modern regular glass - except maybe
> for some dirt on the surface, but that's obviously not some interior effect.
>
> Ancient glass did often have impurities that would scatter light, but as
> a result the material would appear misty or even opaque at reasonable
> thickness (because that's what scattering ultimately does to a medium).
>
Ah! Thanks for answering my cancelled post. ;-) I thought mine 
irrelevant after I discovered you had a much better option to give.

-- 
Thomas

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Hi(gh)!

On 09.10.2015 01:45, clipka wrote:
> Am 08.10.2015 um 22:56 schrieb Jörg 'Yadgar' Bleimann:

> Think physics: Why does the effect you wish to model occur in nature?
>
> You will find that it is not due to scattering, but due to absorption.

Meanwhile, I tried absorption on my own (see attachmealso with bevnts), 
and now it looks believable, at least to me (the glass pane now also has 
bevelled edges)

Note that I multiplied the absorption color with 7, otherwise the 
coloring would have turned out too faint.

See you in Khyberspace!

Yadgar

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Attachments:
Download '2015-10-09 korona scales, take 18.jpg' (21 KB) Download '2015-10-09 korona scales, take 22.jpg' (14 KB)

Preview of image '2015-10-09 korona scales, take 18.jpg'

Preview of image '2015-10-09 korona scales, take 22.jpg'

Le 15-10-09 16:24, Stephen a écrit :
> On 10/9/2015 8:32 PM, Alain wrote:
>> Le 15-10-08 17:12, Stephen a écrit :
>>> On 10/8/2015 9:56 PM, Jörg 'Yadgar' Bleimann wrote:
>>>> I want to model my now-defunct bathroom scales
>>>
>>> Sorry I can't help with your media problem, Yadgar.
>>> But you reminded me of a jape I did a few years back.
>>> I had been working on a crane upgrading the load indicator. I took the
>>> old 100 ton scale and put it in my bathroom scales. My wife's screams
>>> could be heard from miles away.
>>> I did not know she could punch that hard. But it was worth it. ;-)
>>>
>>
>> An 100 TON scale? In a bathroom? That's just plain mean !
>
> Bows :-)
>
> My wife is quite thin so it was an obvious joke.
> I also took a "Cold Work" permit book home as well, but chickened out
> giving that to her. She always had a list of jobs for me to do after
> being offshore for two weeks. In the end I thought that it was pushing it.
>
> In case you don't know UK electrical plugs and sockets look like this:
>
>
https://s-media-cache-ak0.pinimg.com/236x/5f/1b/a9/5f1ba98a5d187b3f733e8c867d8898eb.jpg
It's a standard socket, in the UK.
>
>
> It was fun watching my brother-in-law try to fit this plug into a
> standard socket.
>
>
http://www.flameport.com/electric_museum/plugs_13A_non_standard/walsall_gauge_13a_plug.jpg
>
>

The standard sockets in America are radicaly different from the standard 
sockets in Europe whitch are different from those in Asia whitch are 
different than...

I have a multi-standard adaptor. It have no less than 8 different plugs 
for 8 regions of the world.


Alain

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Hi(gh)!

On 10.10.2015 04:53, Cousin Ricky wrote:

> I concur with Clipka and Alain.  Use fade_power 1001, fade_color, and
> fade_distance in the media block.  Absorbing media may be easier conceptually,
> but it is slower and (in my experience) artifact prone.

Now I added a (yet to be detailed further) plastic frame, replaced the 
absorption media by the following:

     fade_color <0, 0.6, 0.35>
     fade_power 1001
     fade_distance 0.1

...but I wonder why the plastic parts below the glass pane are black now 
(see attachment)! They should be of the same light grey as the side 
parts, only slightly darkened by the glass...

See you in Khyberspace!

Yadgar

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Attachments:
Download '2015-10-11 korona scales, take 35.jpg' (28 KB)

Preview of image '2015-10-11 korona scales, take 35.jpg'

> ....but I wonder why the plastic parts below the glass pane are black
> now (see attachment)! They should be of the same light grey as the side
> parts, only slightly darkened by the glass...

Too low max_trace_level maybe?

Also, behaviour may differ depending on whether you make the glass and
plastic planes overlap, merely touch, or have a tiny gap.

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On 10/10/2015 10:41 PM, Alain wrote:
> The standard sockets in America are radicaly different from the standard
> sockets in Europe whitch are different from those in Asia whitch are
> different than...
>

I know, I know. :-)
I've worked in more than a dozen different countries on every continent 
except Antarctica. (Can't keep a job, it seems. ;-) )


> I have a multi-standard adaptor. It have no less than 8 different plugs
> for 8 regions of the world.

I generally use a standard UK extension socket and replace its plug or 
cable when I get there.

-- 

Regards
     Stephen

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Hi(gh)!

On 11.10.2015 05:00, clipka wrote:

> Too low max_trace_level maybe?

Meanwhile, I increased it to 10 - but still the plastic parts below the 
glass are black!

>
> Also, behaviour may differ depending on whether you make the glass and
> plastic planes overlap, merely touch, or have a tiny gap.

Yes, I provided for a tiny gap... but it did not help!

See you in Khyberspace!

Yadgar

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Hi(gh)!

This is how it should look: 
http://img.dooyoo.de/DE_DE/orig/1/2/6/2/0/1262007.jpg

See you in Khyberspace!

Yadgar

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