Troy Stephen (troys++at++wormald.com.au)
Thu, 23 Jan 1997 10:18:03 +1112 (EST)
..snip..
>
> Yep, you can experience some shading discontinuities across
> channels but this is really the result of the same effect.
I think we may be getting an artifact related to this on our sky polygons
with a multichannel configuration.
So, my question is, when a line is clipped to a viewing frustum how is the
color of the resulting clipped line calculated? For example:
|<------- within channel ------------->|
.----------------.--------------------------------------.
white (clipped point) black
what color is used for the clipped point when gouraud shading is used?
>
> But the worseness is even more worser than the worsening you
> mention :-). If you have lighting calculations they
> move around as a result of the clipping and can produce obvious
> anomalies, especially if you have specular materials.
>
eek. I'm glad my sky polygons aren't lit!
Troy Stephen.
=======================================================================
List Archives, FAQ, FTP: http://www.sgi.com/Technology/Performer/
Submissions: info-performer++at++sgi.com
Admin. requests: info-performer-request++at++sgi.com
This archive was generated by hypermail 2.0b2 on Mon Aug 10 1998 - 17:54:26 PDT