wierd...light clipping...or something [edited]

ghettotek
Unregistered
 
Post: #1
i was just wondering...i noticed when i move my "camera" back from a red colored sphere which has light shining on a portion of it, the light begins to cover the entire sphere as i move back, then it goes back to normal, then the sphere lights all the way up, then it goes back to normal, etc. etc. as long as i keep moving back. any reason why its doing this? i know that when two faces lie on eachother very closely this type of thing occurs. could it possibly be the size of the sphere?
Quote this message in a reply
Feanor
Unregistered
 
Post: #2
Not sure, but my guess is that the normals are not being clamped between 0 and 1, in which case changing the angle of view will do weird things to the light intensity. Moving further away from the polygon will change the angle of view.

Look at glEnable(GL_NORMALIZE) and glEnable(GL_RESCALE_NORMAL).
Quote this message in a reply
ghettotek
Unregistered
 
Post: #3
ok ill do that. thanks.
Quote this message in a reply
Post Reply 

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Transforming directional light to eye space in GLSL Coyote 4 6,382 Dec 8, 2009 03:16 PM
Last Post: Coyote
  SDL & SGE Clipping Problems merrill541 1 2,281 Sep 12, 2009 10:27 PM
Last Post: merrill541
  OpenGL Blending for 2D Light Effects metacollin 10 12,661 Jun 6, 2009 12:51 AM
Last Post: NelsonMandella
  light attenuation NelsonMandella 2 3,602 Jun 4, 2009 03:28 PM
Last Post: reubert
  SDL Clipping Issue Talyn 14 4,541 Jul 15, 2008 11:20 AM
Last Post: Talyn