SunPhigs and Clipping

Thread View: comp.windows.x.pex

1 messages

[T] Back to Threads [V] Tree View [G] Group Articles

1 total messages Started by Kall Tue, 15 Sep 1992 18:14

#141

Author: Kall
Date: Tue, 15 Sep 1992 18:14

28 lines
1437 bytes

I create a ptri_strip3_data structure of a rounded
surface.  I supply vertex colors (strip.colr.direct.rgb.red/green/blue)
and am using lighting (ambient, diffuse, directional and specular).  
All vertices are specified with the same rgb color and are shaded
appropriately, except when I model clip. When I clip
using pset_model_clip_vol3, the surface at the
clipped plane is displayed with random colors.

How do I get rid of the random colors (i.e. at best an
interpolated color based on the adjacent vertices)??

Is SunPhigs incorrectly clipping? What is Phigs
supposed to do at clipped boundaries for
shading?
 
BTW, I am using SunPhigs 2.0, Sunos 4.1.2 on a SS2
with a GX.


---



\------------------------------------------------------------\
 \   Bruce Kall                \  Internet:   Kall@Mayo.edu   \
  \   Mayo Clinic (Foundation)  \  Phone: (507)-255-4768       \
   \   Rochester, MN 55905       \                              \
    \------------------------------------------------------------\

Thread Navigation

This is a paginated view of messages in the thread with full content displayed inline.

Messages are displayed in chronological order, with the original post highlighted in green.

Use pagination controls to navigate through all messages in large threads.

Back to All Threads