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Subject: 
Re: new rendering type? someone else is doing it too
Newsgroups: 
lugnet.cad
Date: 
Mon, 31 Jul 2000 23:00:17 GMT
Viewed: 
2189 times
  
On Sun, 30 Jul 2000 23:11:06 -0600, Paul Gyugyi wrote
(in message <FyJqEI.I72@lugnet.com>):

> From:         "Paul Gyugyi" <paul@gyugyi.com>
> Newsgroups:   lugnet.space
> Followup-To:  lugnet.cad
> 
> One flaw with this technique can be seen in the image:
> http://www.brickshelf.com/cgi-bin/gallery.cgi?i=9233
> Observe the sides of bricks which are seen almost
> edge-on (so that the distance to the object from
> pixel to pixel is large even for the same surface).
> In particular, the front of the white brick at the
> front of the space ship.  It is completely black, I think
> because it triggers the edge-detection algorithm.
> 
> My rayshade patch (mentioned elsewhere) detected edges by
> looking for multiple objects within one pixel.  The problem
> with it was it would create edges even when two polygons
> were flush against each other (like how the top of an LDRAW
> stud is made of many triangles).  A combination of the
> techniques, where the edge is suppressed if the object is the
> same, would fix the blacked-out-surfaces seen in the image.
> 
> -gyug

I've been messing with all the parameters I can find and there doesn't seem
to be a way around that problem.  I'm at a loss regarding what to do.  Oh
well, it's still fun!

Ben

--
Thanks,
Ben

Ben Vaughan
buster@marsbase.com
http://www.marsbase.com



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