| SHADE_SURF problems and questions [message #1118] |
Wed, 04 August 1993 13:48 |
sirk
Messages: 1
Registered: August 1993
|
Junior Member |
|
|
I am having trouble with the IDL SHADE_SURF routine;
IDL. Version 3.0.0 (sunos sparc)
Specifically, whenever I attempt to use a light source other than
vertical (ie SET_SHADING,gouraud=1,light=[0,0,1]), I get bizarre
white patches where there should be shadows. The keyword REJECT seems
not to have any affect. Is this a bug, or a limitation of SHADE_SURF?
Does anyone know of other IDL surface shading routines?
I have already tried and modified the JHU Applied Physics Laboratory
routine SUN_SHADE, but it only shades images, not surfaces, that is,
the veiwpoint is directly from above. The gouraud shading produces
very pleasing results, so I would like to use it, including cast
shadows if possible.
Martin Sirk
Center for Extreme Ultraviolet Astrophysics
University of California
Berkeley, CA 94720
sirk@cea.berkeley.edu
|
|
|
|
comp.lang.idl-pvwave archive
Members
Search
Help
Login
Home
