In article <397EF8DB.340374FD@my-dejanews.com>, 
gre### [at] my-dejanewscom wrote:

> My (perhaps self-limiting) philosophy is:  why use a paint program 
> when you can use a vector one, why use a vector program when you can 
> do 3d, why use a heightfield when you can use an isosurface.  The 
> work need not be re-created from scratch if another point of view or 
> higher resolution is required.

Mostly I agree, and df3's are even less useful with the blob pattern 
available(though sometimes considerably more compact). However, they do 
have certain uses, such as the ability to edit specific voxels, 
possibilities for external modellers, being a useful format for certain 
kinds of data that can't easily be converted to a "vector" format(like 
certain volumetric data, MRI scans, etc), the ability to apply filters 
to the data, etc.

-- 
Christopher James Huff - Personal e-mail: chr### [at] maccom
TAG(Technical Assistance Group) e-mail: chr### [at] tagpovrayorg
Personal Web page: http://homepage.mac.com/chrishuff/
TAG Web page: http://tag.povray.org/

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