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 CAD / Development / 3071
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Subject: 
Re: Clipping / CCW / CW / INVERT
Newsgroups: 
lugnet.cad.dev
Date: 
Fri, 8 Oct 1999 15:08:53 GMT
Viewed: 
1407 times
  
On Thu, 7 Oct 1999 21:32:26 GMT, Larry Pieniazek <lar@voyager.net> wrote:

> Steve Bliss wrote:
> > 
> > On Wed, 6 Oct 1999 18:15:40 GMT, Rui Martins <Rui.Martins@link.pt> wrote:
> > 
> > > From this we now know that "Opaque solids" can have some faces "Clipped"
> > > and that transparent object (solid or not) CAN'T have any faces clipped.
> > 
> > Actually, since LDraw doesn't do shading, transparent surfaces *can* be
> > clipped.  Only edges, the top-most solid surface, and the top-most
> > transparent surface will show up in the final rendered image.
> 
> I believe this is incorrect, no? ALL transparent surfaces should appear,
> if only to make a contribution to the color that underlying surfaces
> appear to be (consider a trans blue surface in front of a trans yellow
> in front of a white... )

I was just pointing out that the clippability of transparent surfaces is a
feature of the rendering program, and shouldn't be assumed in the
description language.

Steve



Message is in Reply To:
  Re: Clipping / CCW / CW / INVERT
 
(...) I believe this is incorrect, no? ALL transparent surfaces should appear, if only to make a contribution to the color that underlying surfaces appear to be (consider a trans blue surface in front of a trans yellow in front of a white... ) (...) (27 years ago, 7-Oct-99, to lugnet.cad.dev)

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