"St." <dot### [at] dotcom> wrote in message news:49844099@news.povray.org...
>   Anyway, C&C always welcome.

Very nice. I've tried lamps before (1 I liked 2 I didn't) so they are a 
difficult subject.

I like the shape and geometry in the shade .... don't mess with that. I 
would however do something diff for the base material. Think duller bronze. 
The tiffany lamps we've had in the shop have had bronze bases.

Cheers

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"Thomas de Groot" <tDOTdegroot@interDOTnlANOTHERDOTnet> wrote in message 
news:498475fc@news.povray.org...
>
> "St." <dot### [at] dotcom> schreef in bericht news:49844099@news.povray.org...
>
> Well, some 'bog' standard comments then:

     Heh... :)

>
> I like it, Steve. I do like it indeed.

   Thank you Thomas. :)


There is an interesting artistic
> world to explore in those decades of the 19th and 20th centuries. I just
> wonder a bit about the colors of the glass which look a bit pale to me, in
> contrast to the background

 I totally agree. I'll have a play with the colours.


> (what is that anyway?

Would you believe I c*cked up with this image? I forgot to scale the lamp, 
whereas I'd scaled the dressing table up for some weird reason. It makes it 
look like the lamp is small, (which it is, lol). Oh well...

Here's the proper image attached with AA still off and area_light off too. 
I'm doing another image later which I'll post tomorrow sometime.


I am not entirely sure
> about the geometry on which the lamplight seems to be projected) where the
> colors are much fuller/richer, which remind me more of the lamp shades of
> Tiffany and others;

Well, thanks for your 'bog' standard answers Thomas, because really, I 
should have called the subject "Tiffany 'Style' lamp" as well. ;)


however, I am not an expert, and so might be totally
> wrong about this.

 I'm not an expert either, but I'd like to think that Tiffany probably 
wouldn't have put this version into production.

> So, is this difference an effect of the light?

   Yes, I think so. With area_light turned on it looks much different.

     ~Steve~




>
> Thomas
>
>

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Attachments:
Download 'TiffStyleLamp.jpg' (119 KB)

Preview of image 'TiffStyleLamp.jpg'

"clipka" <nomail@nomail> wrote in message 
news:web.49848dc3fd113391f95ab580@news.povray.org...

> Or maybe gamma issues?

   Hmm, could be, I think I've always had problems with choosing the right 
gamma numbers. At the moment assumed_gamma is set to .75, which looks ok to 
me.

  ~Steve~

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"Mike Hough" <nos### [at] nospamcom> wrote in message 
news:49848f0f$1@news.povray.org...

> Will look real nice with the area light enabled.

 Doing it hopefully later. It does look nice with area_light enabled. I 
think you've done this before. :)


The glass seems almost like
> it is glowing. If you are using ambient for that part, I would try turning 
> that off and trying double_illuminate instead. Might give it a little more 
> depth.

   Bingo. Yes, that's what I did - ambient of 1 on the glass. My original 
experiments were with ambient at 0, but I admit that I didn't like it too 
much or play too much with it, I just settled on what I thought looked good. 
Will experiment with double_illuminate, (never used it). Thanks for the tip.

   ~Steve~

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"Jim Holsenback" <jho### [at] hotmailcom> wrote in message 
news:4984b96a$1@news.povray.org...
>
> "St." <dot### [at] dotcom> wrote in message news:49844099@news.povray.org...
>>   Anyway, C&C always welcome.
>
> Very nice. I've tried lamps before (1 I liked 2 I didn't) so they are a 
> difficult subject.

    Thank you. Yes, I do know what you mean, it 'is' a difficult subject. 
However, this is just a small section of the final image so the lamp works 
fine 'as is' in the position that it's supposed to be in. (That was the long 
way of saying that the lamp is supposed to be over in the corner of the room 
in the mirror reflection, heh.)  :)


>
> I like the shape and geometry in the shade .... don't mess with that. I 
> would however do something diff for the base material. Think duller 
> bronze. The tiffany lamps we've had in the shop have had bronze bases.

   Thanks for that tip. Will try for bronze. Yikes! o.o

    ~Steve~


>
> Cheers
>

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"St." <dot### [at] dotcom> wrote:
> Here's the proper image attached with AA still off and area_light off too.
> I'm doing another image later which I'll post tomorrow sometime.

How come we can see the projected light on the mirror surface? Must be *really*
dusty... :P

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"St." <dot### [at] dotcom> wrote:
>    Hmm, could be, I think I've always had problems with choosing the right
> gamma numbers. At the moment assumed_gamma is set to .75, which looks ok to
> me.

Uh!

I keep having no idea (and can't seem to learn) which of all those gamma
settings to set to 1.0 and which to set to 2.2 - but I know for sure that there
should *not* be a .75 *anywhere*...

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St. nous illumina en ce 2009-01-31 07:13 -->
> Hi all, thought I'd better post something because I haven't for a while 
> now...
> 
>   I've come to the conclusion that PoV-Ray *is* a part of RL. (For me at 
> least).
> 
>   Anyway, here's a Tiffany lamp that I've been working on recently. This is 
> the colourful version with area_light turned off so don't worry, the final 
> won't be like this. I tried a render last night with area_light turned on 
> and this morning it was at 63% and had been running for 7 hours, so I 
> stopped it. It was a closer shot as well.  :)
> 
>   I've frosted the red glass but I'm not sure if it will actually do 
> anything in the final image yet (or I'm not sure what I'm trying to achieve, 
> I guess some kind of diffusion I suppose), so I might take that out.
> 
>    Light is a single light_source, and all PoV 'bog' standard textures.  ;)
> 
>    Anyway, C&C always welcome.
> 
>      ~Steve~
> 
> 
Have you tryed using photons and some micro normals for the shade? Or some 
averaged normals? If you use averaged normals, don't use to many, try with 5 and 
don't go over 10 to 12.
That way, a point light shadow will receive light from the glass parts. There 
will also be some colour bleeding from area to area.
Tifany lamps, if I remembre correctly, only rarely use realy transparent glass, 
but more cloudy and translucent ones. And, often, the transparent glass was far 
from flat and uniform.

When averaging normals with reflections, 10 averaged normals give 10 samples.
When averaging normals with transparency, the first surface generate 10 samples, 
and each one of those, when encoutering the second surface, generate 10 more. 
This result in 100 total samples per pixel.


Do you know that Mr. Tyfany was a precurson in recycling? He started making his 
lamps to recuperate the breaked glass he all to often got in his glass 
deliveries. He also reused the bits left over after making stained glass for 
churches.

-- 
Alain
-------------------------------------------------
Don't waste your time on a man/woman, who isn't willing to waste their time on you.

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"clipka" <nomail@nomail> wrote in message 
news:web.4984fd3afd113391a50ebcaf0@news.povray.org...
> "St." <dot### [at] dotcom> wrote:
>>    Hmm, could be, I think I've always had problems with choosing the 
>> right
>> gamma numbers. At the moment assumed_gamma is set to .75, which looks ok 
>> to
>> me.
>
> Uh!
>
> I keep having no idea (and can't seem to learn) which of all those gamma
> settings to set to 1.0 and which to set to 2.2 - but I know for sure that 
> there
> should *not* be a .75 *anywhere*...

 :) Why not? If I increase it, it gets darker.

    ~Steve~

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"clipka" <nomail@nomail> wrote in message 
news:web.4984fbea3364c832a50ebcaf0@news.povray.org...
> "St." <dot### [at] dotcom> wrote:
>> Here's the proper image attached with AA still off and area_light off 
>> too.
>> I'm doing another image later which I'll post tomorrow sometime.
>
> How come we can see the projected light on the mirror surface? Must be 
> *really*
> dusty... :P

   No, clean as a whistle! ;) Actually, it's not a mirror, it's just a box 
with a polished chrome finish. Now, it is planned to have some actual glass 
there because there really should be a double reflection of the lamp - one 
reflection from the mirror foil and one from the glass itself.  But I think 
the render time will suffer.

   ~Steve~

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