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Subject: 
Re: BFC and Primitives
Newsgroups: 
lugnet.cad.dev.org.ldraw
Date: 
Wed, 20 Mar 2002 15:57:27 GMT
Viewed: 
333 times
  
In lugnet.cad.dev.org.ldraw, Steve Bliss wrote:

Of course, there are one or two complications.  These are:

1. There is typically a small amount of 'leaking' at various seams of
parts.  This is a rendering issue, not a part-code issue.
2. Primitives and subparts aren't usually complete enclosed objects.  So
you can generally view the backside of these files.  For primitives,
this issue can generally be dealt with by knowing which area *should* be
the front/outside of the object, and which *should* be the backside.
For subparts, my typical approach is to view the part as a whole, and
look for problems there.

I forgot complication #3:

3. If the file you are reviewing has an embedded transparent area, you
won't be able to check the BFC'ness of any surface viewed *through* the
transparent area.  You can fall back on viewing the part with mytest6
turned off, or you can edit the part file, commenting out lines for the
transparent area.  Fortunately, current part-authoring standards direct
authors to put part components in separate files; these separate files
can be individually reviewed for BFC compliance.

Steve



Message is in Reply To:
  Re: BFC and Primitives
 
(...) Actually, checking the BCF-ness of a file is very easy -- open the file in L3Lab, zoom in as necessary, and click the Test | mytest6 menu option. The 'mytest6' option colors all polygons according to their wrapping: Green - front side of (...) (22 years ago, 13-Mar-02, to lugnet.cad.dev.org.ldraw)

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