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From: Simon Lemieux
Subject: Blob mastering
Date: 23 May 2001 13:28:44
Message: <3B0BF434.A55EE091@yahoo.com>
Hi,
  I looked at some of the link at Povray.org and could get a hold on the blob
science...  I mean, I don't exactly understand how it works, how know what it
is, but I have difficulty to predict what will happen if I do this or that,
etc...

Anybody has good links for documentation, tutorials on this subject, I believe
this is often asked...

Thanks,
  Simon

-- 
+--------------------------------+---------------------------+
| Simon Lemieux                  | http://666Mhz.myip.org/   |
| Email : lem### [at] yahoocom | Povray and OpenGL Gallery |
+--------------------------------+---------------------------+


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From: Micha Riser
Subject: Re: Blob mastering
Date: 23 May 2001 13:55:26
Message: <3b0bf98e$1@news.povray.org>
Simon Lemieux wrote:

> 
> Anybody has good links for documentation, tutorials on this subject, I
> believe this is often asked...
>

Rune's Blob Tutorial:
http://rsj.mobilixnet.dk/3d/blobs/blobs.html


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From: Simon Lemieux
Subject: Re: Blob mastering
Date: 23 May 2001 14:30:27
Message: <3B0C02AD.BCD7B855@yahoo.com>
> Rune's Blob Tutorial:
> http://rsj.mobilixnet.dk/3d/blobs/blobs.html

Thanks, this is a very good start!  I think I'll be able to continue by myself,
unless you suggest something else?

Thanks!
  Simon

-- 
+--------------------------------+---------------------------+
| Simon Lemieux                  | http://666Mhz.myip.org/   |
| Email : lem### [at] yahoocom | Povray and OpenGL Gallery |
+--------------------------------+---------------------------+


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From: David Fontaine
Subject: Re: Blob mastering
Date: 23 May 2001 23:18:17
Message: <3B0C7C22.93AA6988@faricy.net>
Micha Riser wrote:
> 
> Simon Lemieux wrote:
> 
> >
> > Anybody has good links for documentation, tutorials on this subject, I
> > believe this is often asked...
> >
> 
> Rune's Blob Tutorial:
> http://rsj.mobilixnet.dk/3d/blobs/blobs.html

Sure that won't just be confusing?  Right off it goes into four
dimensions...<g> ;)

-- 
David Fontaine  <dav### [at] faricynet>  ICQ 55354965
My raytracing gallery:  http://davidf.faricy.net/


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From: Rune
Subject: Re: Blob mastering
Date: 24 May 2001 04:18:58
Message: <3b0cc3f2@news.povray.org>
"David Fontaine" wrote:
> Micha Riser wrote:
> > Rune's Blob Tutorial:
> > http://rsj.mobilixnet.dk/3d/blobs/blobs.html
>
> Sure that won't just be confusing?  Right off it goes
> into four dimensions...<g> ;)

Hey, I heard that! ;)

Rune
--
3D images and anims, include files, tutorials and more:
Rune's World:    http://rsj.mobilixnet.dk (updated May 10)
POV-Ray Users:   http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Webring: http://webring.povray.co.uk


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From: David Fontaine
Subject: Re: Blob mastering
Date: 28 May 2001 03:28:18
Message: <3B11FBC2.5B985D31@faricy.net>
Rune wrote:
> 
> "David Fontaine" wrote:
> > Micha Riser wrote:
> > > Rune's Blob Tutorial:
> > > http://rsj.mobilixnet.dk/3d/blobs/blobs.html
> >
> > Sure that won't just be confusing?  Right off it goes
> > into four dimensions...<g> ;)
> 
> Hey, I heard that! ;)

Now, imagine the surface of the water passes through <0,0,0,0> and has a
normal of <0,0,0,1>... ;)

-- 
David Fontaine  <dav### [at] faricynet>  ICQ 55354965
My raytracing gallery:  http://davidf.faricy.net/


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From: Rune
Subject: Re: Blob mastering
Date: 28 May 2001 05:34:33
Message: <3b121ba9@news.povray.org>
"David Fontaine" wrote:
> Now, imagine the surface of the water passes through
> <0,0,0,0> and has a normal of <0,0,0,1>... ;)

Err...?

Rune
--
3D images and anims, include files, tutorials and more:
Rune's World:    http://rsj.mobilixnet.dk (updated May 10)
POV-Ray Users:   http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Webring: http://webring.povray.co.uk


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From: george ferguson
Subject: Re: Blob mastering
Date: 2 Jun 2001 14:33:04
Message: <3b193160@news.povray.org>
"Rune" <run### [at] mobilixnetdk> wrote in message
news:3b121ba9@news.povray.org...
> "David Fontaine" wrote:
> > Now, imagine the surface of the water passes through
> > <0,0,0,0> and has a normal of <0,0,0,1>... ;)
>
> Err...?
>
> Rune
> --
> 3D images and anims, include files, tutorials and more:
> Rune's World:    http://rsj.mobilixnet.dk (updated May 10)
> POV-Ray Users:   http://rsj.mobilixnet.dk/povrayusers/
> POV-Ray Webring: http://webring.povray.co.uk
>
>

I personally think that Rune's blob tutorial is THE best blob tutorial
around...except that his home made macro doesn't work ;-)

Marc


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From: Rune
Subject: Re: Blob mastering
Date: 2 Jun 2001 15:33:18
Message: <3b193f7e@news.povray.org>
"george ferguson" wrote:
> I personally think that Rune's blob tutorial is
> THE best blob tutorial around

Why thank you!

> ...except that his home made macro doesn't work ;-)

It works for me. What is the problem you're experiencing?
(Or maybe there was something in that smiley I didn't get?)

Rune
--
3D images and anims, include files, tutorials and more:
Rune's World:    http://rsj.mobilixnet.dk (updated May 10)
POV-Ray Users:   http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Webring: http://webring.povray.co.uk


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From: george ferguson
Subject: Re: Blob mastering
Date: 3 Jun 2001 08:34:28
Message: <3b1a2ed4@news.povray.org>
Rune wrote:
> > ...except that his home made macro doesn't work ;-)
>
> It works for me. What is the problem you're experiencing?
> (Or maybe there was something in that smiley I didn't get?)
>
> Rune

the thing is that when i try to put in a sphere for example it says "no
matching } in sphere , found instead...its the one after actual_radius,
before strength...this was my code

#include "colors.inc"

camera {location <0,0,-10>
}

// create a point "spotlight" (cylindrical directed) light source
light_source
{
  0*x                     // light's position (translated below)
  color rgb <1,1,1>       // light's color
  spotlight               // this kind of light source
  cylinder                // this variation
  translate <40, 80, -40> // <x y z> position of light
  point_at <0, 0, 0>      // direction of spotlight
  radius 5                // hotspot (inner, in degrees)
  tightness 50            // tightness of falloff (1...100) lower is softer,
higher is tighter
  falloff 8               // intensity falloff radius (outer, in degrees)
}



#macro easyblob (_threshold,_visibleradius,_blobbiness)
   #local _strength = (1+1/_blobbiness)*_threshold;
   #local _actualradius =
   _visibleradius/sqrt(1-sqrt(_threshold/_strength));
   _actualradius, _strength
#end

sphere {
   <0,0,0>,
   easyblob (0.65, 2, 2)
}

tell me what im doing wrong...please!!!

Marc


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