Well, one option is to use an include file and define some units.

You could then do something like 
sphere{ <0,0,0> (1 * foot) }
sphere{ <0,0,0> (.5 * inch) }

And then try declaring different values for 'foot' and 'inch' and test
what happens.


BTW, that's one thing we are recommending for the IMP.


Darcy Johnston wrote:
> 
> Just a general question:
> 
> Which is actually better, in terms of resources used by povray:
> a) to have a smaller scaled object and then scale it up
> b) have a larger scaled object and not need to 'scale' it anymore
> c) having a small scaled object and just making your scene small scaled?
> 
> As an example, if I have a 255 foot tower, am I better off
> a) using .1 = 1 foot and then using scale 10 to being it up to 1 unit = 1
> foot
> b) just using  1unit = 1 foot everywhere
> c) just using .1 unit - 1 foot everywhere
> 
> or does it matter at all?
> 
> I realize this may be a silly question, but I was just curious whether any
> of these possibilities makes any difference to Povray.
> 
> Thanks,
> Darcy

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