POV-Ray : Newsgroups : povray.binaries.images : polygon to circle loft Server Time
3 May 2024 12:40:11 EDT (-0400)
  polygon to circle loft (Message 11 to 20 of 51)  
<<< Previous 10 Messages Goto Latest 10 Messages Next 10 Messages >>>
From: LanuHum
Subject: Re: polygon to circle loft
Date: 10 May 2015 09:15:04
Message: <web.554f5953908ae4217a3e03fe0@news.povray.org>
Sorry!
Example for my early post


Post a reply to this message


Attachments:
Download 'polynom.jpg' (39 KB)

Preview of image 'polynom.jpg'
polynom.jpg


 

From: And
Subject: Re: polygon to circle loft
Date: 10 May 2015 10:00:00
Message: <web.554f63d8908ae421bad22bea0@news.povray.org>
"LanuHum" <Lan### [at] yandexru> wrote:
> Whether it is possible to make the universal scheme of transition from a curve
> to the n-gons?

It is possible. But most of the curve can not be represented by a polynomial.
Using isosurface will make rendering time very long.


Post a reply to this message

From: LanuHum
Subject: Re: polygon to circle loft
Date: 10 May 2015 10:15:00
Message: <web.554f6702908ae4217a3e03fe0@news.povray.org>
"And" <49341109@ntnu.edu.tw> wrote:
> "LanuHum" <Lan### [at] yandexru> wrote:
> > Whether it is possible to make the universal scheme of transition from a curve
> > to the n-gons?
>
> It is possible. But most of the curve can not be represented by a polynomial.
> Using isosurface will make rendering time very long.

isosurface is other question.
polynom doesn't use boundby.
It is feature which can be used in different situations.
It is interesting to me because such it is impossible to simulate in Blender.
I have a program creating the picture for HeightField which will allow to
reproduce similar, but it will be not that.
Time of a render in this case isn't important.
:)


Post a reply to this message

From: And
Subject: Re: polygon to circle loft
Date: 10 May 2015 10:20:01
Message: <web.554f687f908ae421bad22bea0@news.povray.org>
"LanuHum" <Lan### [at] yandexru> wrote:
> Sorry!
> Example for my early post

Oh, you made it with programming process. It can be more flexible in a sense,
then you can creat a mesh. My technique is using the equation.


Post a reply to this message

From: LanuHum
Subject: Re: polygon to circle loft
Date: 10 May 2015 10:35:00
Message: <web.554f6b98908ae4217a3e03fe0@news.povray.org>
"And" <49341109@ntnu.edu.tw> wrote:
> "LanuHum" <Lan### [at] yandexru> wrote:
> > Sorry!
> > Example for my early post
>
> Oh, you made it with programming process. It can be more flexible in a sense,
> then you can creat a mesh. My technique is using the equation.

I also need the equation. On a screenshot I only showed transition from hard of
7 segments to a smoothed curve
Interests me 3-10 and more, but it is universal


Post a reply to this message

From: And
Subject: Re: polygon to circle loft
Date: 10 May 2015 12:00:03
Message: <web.554f803f908ae421bad22bea0@news.povray.org>
"LanuHum" <Lan### [at] yandexru> wrote:
> "And" <49341109@ntnu.edu.tw> wrote:
> > "LanuHum" <Lan### [at] yandexru> wrote:
> > > Time of a render in this case isn't important.
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Really?

> > > Sorry!
> > > Example for my early post
> >
> > Oh, you made it with programming process. It can be more flexible in a sense,
> > then you can creat a mesh. My technique is using the equation.
>
> I also need the equation. On a screenshot I only showed transition from hard of
> 7 segments to a smoothed curve
> Interests me 3-10 and more, but it is universal
   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   I can't understand what your word mean.

Well, do you understand equation?
If you do, then my equation should be simple.
I have rendered another picture to show what my method can do. Just answer your
question whether it is possible to make the universal scheme of transition from
a curve to the n-gons.

But the outcome which I drew can not fit what the blending shape drawn by your
method.
Because I saw that your shape is consist of many straight lines, and my shape is
not.


Post a reply to this message


Attachments:
Download 'loft test2 3.png' (207 KB)

Preview of image 'loft test2 3.png'
loft test2 3.png


 

From: And
Subject: Re: polygon to circle loft
Date: 10 May 2015 12:10:01
Message: <web.554f8239908ae421bad22bea0@news.povray.org>
Here is a similar shape that blend a circle into two circles.


Post a reply to this message


Attachments:
Download 'loft test2 4.png' (226 KB)

Preview of image 'loft test2 4.png'
loft test2 4.png


 

From: LanuHum
Subject: Re: polygon to circle loft
Date: 10 May 2015 12:25:01
Message: <web.554f859b908ae4217a3e03fe0@news.povray.org>
"And" <49341109@ntnu.edu.tw> wrote:
> "LanuHum" <Lan### [at] yandexru> wrote:
> > "And" <49341109@ntnu.edu.tw> wrote:
> > > "LanuHum" <Lan### [at] yandexru> wrote:
> > > > Time of a render in this case isn't important.
>        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> Really?
>
> > > > Sorry!
> > > > Example for my early post
> > >
> > > Oh, you made it with programming process. It can be more flexible in a sense,
> > > then you can creat a mesh. My technique is using the equation.
> >
> > I also need the equation. On a screenshot I only showed transition from hard of
> > 7 segments to a smoothed curve
> > Interests me 3-10 and more, but it is universal
>    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>    I can't understand what your word mean.
>
> Well, do you understand equation?
> If you do, then my equation should be simple.
> I have rendered another picture to show what my method can do. Just answer your
> question whether it is possible to make the universal scheme of transition from
> a curve to the n-gons.
>
> But the outcome which I drew can not fit what the blending shape drawn by your
> method.
> Because I saw that your shape is consist of many straight lines, and my shape is
> not.

I badly understand you, and you don't understand me

Example:
box{1,-1}
sphere{0,1}
you object{???????????}
????? - universal parameters:
 up<x,x,x,x,x,x,x> //6 sides or up<x,x,x,x> //4 sides
 down<bezier_spline> or down<x,x,x,x,x,x,x,x,x,x,x,x,x,x........>//1024 sides
Or, something similar to it
The main thing that up - smooth, and down - flat, or on the contrary
That the side appeared smoothly from a bottom to top, or on the contrary


Post a reply to this message

From: And
Subject: Re: polygon to circle loft
Date: 11 May 2015 01:55:07
Message: <web.555043cf908ae421bad22bea0@news.povray.org>
"LanuHum" <Lan### [at] yandexru> wrote:
>
> I badly understand you, and you don't understand me
>
> Example:
> box{1,-1}
> sphere{0,1}
> you object{???????????}
> ????? - universal parameters:
>  up<x,x,x,x,x,x,x> //6 sides or up<x,x,x,x> //4 sides
>  down<bezier_spline> or down<x,x,x,x,x,x,x,x,x,x,x,x,x,x........>//1024 sides
> Or, something similar to it
> The main thing that up - smooth, and down - flat, or on the contrary
> That the side appeared smoothly from a bottom to top, or on the contrary

Well, ...ok, so those are some programming grammars in blender?


Post a reply to this message

From: LanuHum
Subject: Re: polygon to circle loft
Date: 11 May 2015 02:35:00
Message: <web.55504d4b908ae4217a3e03fe0@news.povray.org>
"And" <49341109@ntnu.edu.tw> wrote:

>
> Well, ...ok, so those are some programming grammars in blender?


In the Blender it will be mesh(fictitious, approximately similar), and will be
exported to Povray as your object.
For this purpose there will be special entry fields of necessary data.


Post a reply to this message

<<< Previous 10 Messages Goto Latest 10 Messages Next 10 Messages >>>

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.