POV-Ray : Newsgroups : povray.advanced-users : Modeling a Brain with Povray : Re: Modeling a Brain with Povray Server Time
29 Jul 2024 04:24:27 EDT (-0400)
  Re: Modeling a Brain with Povray  
From: fidel viegas
Date: 10 Jan 2003 18:23:52
Message: <3E1F547C.8040504@nodomain.com>
ingo wrote:
> in news:3E1### [at] nodomaincom fidel viegas wrote:
> 
> 
>>Is there a good tutorial on how to 
>>process df3 files?
> 
> 
> No, but there is a tga2df3 convertor at http://www.users.on.net/pod/df3/ 

Thanks for the link. I've looked into it already.

>>And what about its format?
> See 6.7.11.11  Density_File

I also read this on the documentation. Now I came across another program 
called df3maker and it takes text version of the data and outputs the 
binary version. I know how to create the binary file, but I have a doubt 
regarding its format. I found the data below at the df3maker web site:

4,3,5
0,50,50,0
50,100,100,50
0,50,50,0
10,100,100,10
100,200,200,100
10,100,100,10
50,150,150,50
150,255,255,150
50,150,150,50
10,100,100,10
100,200,200,100
10,100,100,10
0,50,50,0
50,100,100,50
0,50,50,0

Ok, I understand the 4, 3 and 5, which are the dimensions of the cube in 
x, y and z respectively. My question is how do we come up with the data 
values? In the docs it had x*y*z, does it mean that each cell is the 
result of multiplying x, y and z? For instance the second value 50, is 
it the result of this multiplication?

Another question is regarding the tga2df3 converter. How does the 2D 
grid of pixels found in a tga picture translate to a 3D grid?

I hope my queries are clear.

Thanks once again.

You guys have been great.

Fidel.


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