Subject:
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Re: Clipping / CCW / CW / INVERT
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Newsgroups:
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lugnet.cad.dev
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Date:
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Mon, 11 Oct 1999 14:18:29 GMT
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Viewed:
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467 times
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On Fri, 8 Oct 1999 18:48:02 GMT, "Gary Williams" <graywolf@pcpros.net>
wrote:
> Isn't a CLIPPING tag redundant?
>
> Programs should always clip when drawing an opaque part, and never clip when
> drawing a transparent part.
Nope, CLIPPING is not redundant; using CLIPPING and WINDING is another way
of accomplishing what we've been discussing with the FACE meta-statement.
See Rui's description in the root-message of this thread.
Also, clipping should not be performed on surfaces which are double-sided,
such as printed patterns. Wrapping the decorations with CLIPPING OFF /
CLIPPING ON is one way of controlling this.
Steve
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