Alain wrote:

> EagleSun nous apporta ses lumieres en ce 15/06/2006 09:02:
> [..]
>> I've seen this before.... and I suspect they are intersections of several
>> objects.  You mentioned an object called "blob".  If they intersect at
>> many
>> places, you'll get these lines.  With renderings I have done, the only
>> thing I could think of was to change the size or position of the objects
>> by +/- 0.001 or 0.005 or some tiny random number, to minimize the number
>> of intersections.
> 
>> However in your case, it might be better for you to put them into "Union"
>> or
>> "Merge".  Merge is slower but may be better in your case... because with
>> merge, the objects then actually merge into a single object, which means
>> there will be no intersections at all.
> 
>> Now come to think of it... I think I'll try that on my renders... trying
>> to merge water with the surface of the planet....
> 
> 
> 
> A blob is a single, multi components object. It's a kind of special case
> isosurface composed of various spheres and cylinders. Search fot it in the
> documentations. It don't contain any internal surfaces and don't intersect
> itself.
> 

Yes. EagleSun, If you go into the scenes/ directory of the pov
distribution and look at advanced/gaussianblob.pov you can get
the general technique for doing cloud shapes that I'm using -
though I'm not using gaussian distributions particularily -
in fact it's my variations on this method that are probably
the cause of the problem.

-- 
Bill Hails
http://billhails.net/

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