POV-Ray : Newsgroups : povray.binaries.animations : Ol' Toothpick Mouth re-animated - sort of.. Server Time
1 Nov 2024 21:22:33 EDT (-0400)
  Ol' Toothpick Mouth re-animated - sort of.. (Message 1 to 3 of 3)  
From: Ib Rasmussen
Subject: Ol' Toothpick Mouth re-animated - sort of..
Date: 16 Feb 2003 09:31:42
Message: <3E4FA109.1070301@ibras.dk>
I have played some more with the Stanford CT head data 
(http://graphics.stanford.edu/data/voldata/), converting the pixels to 
"voxels" ie boxes.

I have rendered it with different cutoff values, as suggested by 
Alastair Murray, and put them together as a sort of animation.

The "worst" of the images contains 1.713.361 boxes and used about 1.4GB 
memory. This is not the last image, as I in the folowing images dropped 
all points with a density over 1000. That includes the brain, which 
represents a large part of the 1.7 mill boxes, none of which are visible 
in the images.

/Ib


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Attachments:
Download 'cthead4.m1v.mpg' (287 KB)

From: Alastair Murray
Subject: Re: Ol' Toothpick Mouth re-animated - sort of..
Date: 16 Feb 2003 15:34:08
Message: <3e4ff5c0@news.povray.org>
Wow, I wasn't really expecting you to actually do it.  Anyway, it looks
quite cool - but is the render time for each frame very high? (with that
many boxes I wouldn't be suprised)  As the only flaw with the animation is
it is very jumpy (especially when most of the flesh is disappearing at it's
quickest, half-way through the 'growth' cycle).  But I like it, it's nice to
see POV-Ray being used for something more bounded in reality.  :-)



"Ib Rasmussen" <ib### [at] ibrasdk> wrote in message
news:3E4### [at] ibrasdk...
> I have played some more with the Stanford CT head data
> (http://graphics.stanford.edu/data/voldata/), converting the pixels to
> "voxels" ie boxes.
>
> I have rendered it with different cutoff values, as suggested by
> Alastair Murray, and put them together as a sort of animation.
>
> The "worst" of the images contains 1.713.361 boxes and used about 1.4GB
> memory. This is not the last image, as I in the folowing images dropped
> all points with a density over 1000. That includes the brain, which
> represents a large part of the 1.7 mill boxes, none of which are visible
> in the images.
>
> /Ib
>
>
>


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From: Ib Rasmussen
Subject: Re: Ol' Toothpick Mouth re-animated - sort of..
Date: 17 Feb 2003 14:50:58
Message: <3E513D72.1030406@ibras.dk>
Alastair Murray wrote:

> Wow, I wasn't really expecting you to actually do it.  Anyway, it looks
> quite cool - but is the render time for each frame very high? 


Up to nine hours.

> As the only flaw with the animation is
> it is very jumpy (especially when most of the flesh is disappearing at it's
> quickest, half-way through the 'growth' cycle).


This is because all the flesh has the same x-ray density, so when the 
cutoff gets below that, it all appears at once.

/Ib


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