POV-Ray : Newsgroups : povray.general : sphere_sweep feature request Server Time
7 Nov 2024 09:27:55 EST (-0500)
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From:
Subject: sphere_sweep feature request
Date: 29 Mar 2002 12:56:01
Message: <63a9augte30rmdtn5u79efoohua8o3najg@4ax.com>
I wonder if sphere sweep could be defined (in sdl) similiar to blob - with
spheres as components. If sphere_sweep intersection test can calculate radius
for specified intersection then it means it knows t value between noodes. If it
knows t value then it can average pigments of noodes. Probably best explanation
what I mean could be syntax example. I mean something like:

sphere_sweep{
  linear_spline
  sphere{<0,1,2> .1}
  sphere{<0,1,2> .2 pigment{red 1}}
  sphere{<7,6,6> .3 pigment{green 1}}
  sphere{<0,1,2> .4}
  sphere{<0,1,2> .5}
  pigment{blue 1}
}

Above example creates 4 segments - first goes from blue to red, second goes from
red to green, third goes from green to blue, fourth is completly blue.

Definetly something to try after source release.

ABX


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From: JRG
Subject: Re: sphere_sweep feature request
Date: 29 Mar 2002 13:09:00
Message: <3ca4adbc@news.povray.org>
Not only. It would be great if you could scale each sphere and get the scaling
interpolated (for flat wires).

--
Jonathan.


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From: ingo
Subject: Re: sphere_sweep feature request
Date: 29 Mar 2002 15:24:18
Message: <Xns91E0DA22710EBseed7@povray.org>

wrote:

> I wonder if sphere sweep could be defined (in sdl) similiar to blob

Interesting. How about turning it into a blob completely, you could do 
stuff like in Softy3D.
http://www.softy3d.com/en/index.htm

Ingo


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From: Shay
Subject: Re: sphere_sweep feature request
Date: 1 Apr 2002 15:09:39
Message: <3ca8be83$1@news.povray.org>
I've just spent about 10 minutes trying to find this message. Anyway, see
p.b.i..

 -Shay

JRG <jrg### [at] hotmailcom> wrote in message news:3ca4adbc@news.povray.org...


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From:
Subject: Re: sphere_sweep feature request
Date: 2 Apr 2002 01:27:39
Message: <4kjiaucmrev0o19320p906d2f75nq0ukaa@4ax.com>
On 29 Mar 2002 15:24:18 -0500, ingo <ing### [at] homenl> wrote:
> Interesting. How about turning it into a blob completely, you could do 
> stuff like in Softy3D.

It could be two implementation of sphere sweeps as for sphere and cylinder - as
separated object and as blob component. Moreover with changed inside definition
as I proposed some day it could be probably possible to add every object type as
blob component - then blob would be something like bridge between unions and
isosurfaces.

ABX


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From:
Subject: Re: sphere_sweep feature request
Date: 2 Apr 2002 01:31:00
Message: <qujiau4fm40ter5dhrl63htrl425e350nj@4ax.com>
On Mon, 1 Apr 2002 14:10:51 -0600, "Shay" <sah### [at] simcopartscom> wrote:
> I've just spent about 10 minutes trying to find this message. Anyway, see
> p.b.i..

?

nothing related

ABX


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From: Shay
Subject: Re: sphere_sweep feature request
Date: 2 Apr 2002 11:58:16
Message: <3ca9e328$1@news.povray.org>

news:qujiau4fm40ter5dhrl63htrl425e350nj@4ax.com...
> ?
>
> nothing related
>
> ABX

I should have quoted JRG's message in my reply. I posted an image in p.b.i.
of flat wire. JRG had mentioned it in his reply to your original post.

 -Shay


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From: Jochen Lippert
Subject: Re: sphere_sweep feature request
Date: 14 Jul 2002 16:08:53
Message: <1ffbytr.hd749mg5zssgN%jlippert@mac.com>
W"odzimierz ABX Skiba <abx### [at] babilonorg> wrote:

> Above example creates 4 segments - first goes from blue to red, second
> goes from red to green, third goes from green to blue, fourth is completly
> blue.

Should be not much of a problem, because just like the x, y, and z
coordinates and the position along the curve, the color could be
parametrized. One implementation problem may be the current separation
between the geometry (shape) and the surface properties (texture etc.).

> Definetly something to try after source release.

If someone is bold enough to figure out the source code... 8)

Jochen Lippert

-- 
No smilies were harmed in the making of this message ;)


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