Tim Attwood napsal(a):
>> I did that but it still generates a solid white sphere.  It is not 
>> transparent,
>> and does not fade at the edges.  There must be another setting or command 
>> that
>> has to change.  The planet and the atmosphere get put together with this:
>>
>> #declare Planet = union {
>>  object { PlanetSphere }
>>  #ifndef (Quick)
>>    object { PlanetCloudSphere0 }
>>    object { PlanetAtmosphere }
>>  #end
>> }
>>
>> Is this a good way to do it?
> 
> This media is intended to be around a unit sphere.
> If you wish to use a different size, scale it after union...
> 
scaling an object doesn't reduce its density. Eight thousand times a 
piece of steel is a piece of steel, not a piece of super-sparse steel.
-- 
You know you've been raytracing too long when...
you start thinking up your own "You know you've been raytracing too long 
when..." sigs (I did).
		-Johnny D
Johnny D

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