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 CAD / Ray-Tracing / 2895
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Subject: 
Re: New POV-Ray Edge Tracing Utility
Newsgroups: 
lugnet.cad.ray
Date: 
Thu, 19 Jun 2008 06:54:40 GMT
Viewed: 
16687 times
  
In lugnet.cad.ray, Travis Cobbs wrote:
> As for the "inside_vector", it's only possible with BFC-certified LDraw parts,
> since non-BFC-certified parts don't have any concept of an inside or outside on
> the faces.  Even with those, CSG might be a problem due to the fact that some
> parts aren't actually fully closed (meaning that there are some gaps).  And
> primitive substitution greatly increases the likelihood of gaps due to the fact
> that when a cylinder primitive meets cylindrical geometry that doesn't use a
> primitive, a gap is guaranteed.  (Note that I don't know enough about POV CSG to
> know if gaps are a problem or not.)
> 
> --Travis

Ah, thanks for the clarification.

-Mike



Message is in Reply To:
  Re: New POV-Ray Edge Tracing Utility
 
(...) It certainly COULD be modified. However, it's up to Lars whether or not this actually happens. I looked at the mesh2 syntax, and changing to using it wouldn't really be trivial (although it probably wouldn't be all that difficult). Bear in (...) (18 years ago, 18-Jun-08, to lugnet.cad.ray)

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