This is the brass lamp that I'd been working on for a while. I finally 
solved the problems with the lamp globe.

Came up with the normal on the globe after working through Warps slope map 
tutorial!

Jim

Post a reply to this message

Attachments:
Download 'BrassLamp.png' (808 KB)

Preview of image 'BrassLamp.png'

Impressive! I guess the normal work on the globe really makes it.

BTW, what's that grey flask on the right? What would anyone build a 
vessel like that for? (Needs some more beveling work around its resting 
surface and where the box meets the cylinder, btw... the table could 
also need some.)

Post a reply to this message

"clipka" <ano### [at] anonymousorg> wrote in message 
news:4ab76d58@news.povray.org...
> Impressive! I guess the normal work on the globe really makes it.
>
> BTW, what's that grey flask on the right? What would anyone build a vessel 
> like that for?

My guess would be that it's a traditional solution to the thick gloopy 
liquid problem, before squeezy bottles and upside-down ketchup bottles were 
invented, so you don't have to wait while it makes its way all the way from 
the bottom to the spout each time you want some?

Anywhere close?

Regards,
Chris B.

Post a reply to this message

"clipka" <ano### [at] anonymousorg> wrote in message 
news:4ab76d58@news.povray.org...
> Impressive! I guess the normal work on the globe really makes it.

Yes it does! The problem (you and discussed) with the globe was even though 
I could see through the lath object, it was rendering the volume of the 
object until I figured out how to close the spline.

> BTW, what's that grey flask on the right? What would anyone build a vessel 
> like that for? (Needs some more beveling work around its resting surface 
> and where the box meets the cylinder, btw... the table could also need 
> some.)

The grey object on the right is a bed warmer .... fill it with hot water and 
it goes between the sheets (down by your toes), and yes perhaps a little 
more work is needed! It's a union of lathe object and a rounded box. Any 
ideas how to smooth the transition from base to lathe object?

The table could probably use a little more normal work, but the edges ... 
well I have this table in the shop, pretty crude primitive construction. The 
methods of the period (c1840) never broke the edges like you're suggesting. 
Not round legs either ... basic straight egdes and tapered ... pegged 
together, NO NAILS!!!

Thanks!
Jim

Post a reply to this message

> "clipka" <ano### [at] anonymousorg> wrote in message 
> news:4ab76d58@news.povray.org...
>> BTW, what's that grey flask on the right? What would anyone build a 
>> vessel like that for?
>
> My guess would be that it's a traditional solution to the thick gloopy 
> liquid problem, before squeezy bottles and upside-down ketchup bottles 
> were invented, so you don't have to wait while it makes its way all the 
> way from the bottom to the spout each time you want some?
>
> Anywhere close?
>
> Regards,
> Chris B.

Way off (ha-ha) ... it's a bed warmer!

Jim

Post a reply to this message

On Mon, 21 Sep 2009 10:17:56 -0300, "Jim Holsenback" <jho### [at] povrayorg>
wrote:

>
>The grey object on the right is a bed warmer .... fill it with hot water and 
>it goes between the sheets (down by your toes),


I would describe it as an old fashioned or stone "hot water" bottle.

> and yes perhaps a little 
>more work is needed! It's a union of lathe object and a rounded box. Any 
>ideas how to smooth the transition from base to lathe object?

I'm not sure that I can describe it in English but I will try,
Add a cylinder that is tangential to the lathe object and the base and has a
radius that suits your model (This is easier when you use a modeller and you can
see where things touch. :P). Add a box where one face goes through the tangents
of the cylinder and lathe object at the top and the cylinder and base. Turn that
into a CSG difference (you may need to add extra boxes to clean it up) with the
cylinder subtracted from the box. You should now have an object that is a
"filler".

I've not tried it but it is the way I do these things.
-- 

Regards
     Stephen

Post a reply to this message

"Jim Holsenback" <jho### [at] povrayorg> wrote in message 
news:4ab77d74@news.povray.org...
>> "clipka" <ano### [at] anonymousorg> wrote in message 
>> news:4ab76d58@news.povray.org...
>>> BTW, what's that grey flask on the right? What would anyone build a 
>>> vessel like that for?
>>
>> My guess would be that it's a traditional solution to the thick gloopy 
>> liquid problem, before squeezy bottles and upside-down ketchup bottles 
>> were invented, so you don't have to wait while it makes its way all the 
>> way from the bottom to the spout each time you want some?
>>
>> Anywhere close?
>>
>> Regards,
>> Chris B.
>
> Way off (ha-ha) ... it's a bed warmer!
>
> Jim


Doh!!
:-)

Post a reply to this message

Jim Holsenback schrieb:

> The grey object on the right is a bed warmer .... fill it with hot water and 
> it goes between the sheets (down by your toes), and yes perhaps a little 
> more work is needed! It's a union of lathe object and a rounded box. Any 
> ideas how to smooth the transition from base to lathe object?

Yes: Hard math :-P

I'll need a macro for linking rectangular blocks to cylinders, too, but 
so far I haven't figured out the details yet. ATM I could only give you 
an example of how to round off the edges on a linear polygon with 
circular arcs, but although it's presumably a closely related problem, 
it's not exactly the same.

> The table could probably use a little more normal work, but the edges ... 
> well I have this table in the shop, pretty crude primitive construction. The 
> methods of the period (c1840) never broke the edges like you're suggesting. 

Even without deliberate rounding, beveling or even sanding, boards will 
/never/ have perfectly sharp edges - not to mention some deal of 
involutary beveling by wear.

(That's why on my steam locomotive I'm actually beveling - or more 
precisely, rounding off - /everyhing/ at least a tiny bit, even if it is 
supposed to be machined steel instead of cast iron.)

Post a reply to this message

"Stephen" <mcavoysAT@aolDOTcom> wrote in message 
news:pm0fb5tktbb0e3rbt22h12921hlap3udh5@4ax.com...
> I'm not sure that I can describe it in English but I will try,
> Add a cylinder that is tangential to the lathe object and the base and has 
> a
> radius that suits your model (This is easier when you use a modeller and 
> you can
> see where things touch. :P). Add a box where one face goes through the 
> tangents
> of the cylinder and lathe object at the top and the cylinder and base. 
> Turn that
> into a CSG difference (you may need to add extra boxes to clean it up) 
> with the
> cylinder subtracted from the box. You should now have an object that is a
> "filler".

Ok ... (clipka's and yours) inputs have started some ideas. I'll sit down 
with a sheet of graph paper (this computer doesn't have POV) while I'm 
watching the shop.

Cheers!

Post a reply to this message

"clipka" <ano### [at] anonymousorg> wrote in message 
news:4ab78f57$1@news.povray.org...
> (That's why on my steam locomotive I'm actually beveling - or more 
> precisely, rounding off - /everyhing/ at least a tiny bit, even if it is 
> supposed to be machined steel instead of cast iron.)

I took a look and YES I do see what you mean ... most excellent!

Post a reply to this message