FAQ/Depth Buffer

From OpenGL Wiki
< FAQ
Revision as of 19:00, 30 April 2006 by Marco (talk | contribs)
Jump to: navigation, search
Enable Depth Buffering 
How do I make depth buffering work?
Depth Buffer and Perspective Rendering 
Depth buffering doesn't work in my perspective rendering. What's going on?
Write Image To Depth Buffer 
How do I write a previously stored depth image to the depth buffer?
Depth Buffer Precision 
Depth buffering seems to work, but polygons seem to bleed through polygons that are in front of them. What's going on?
Why is my depth buffer precision so poor?
Why is there more precision at the front of the depth buffer?
There is no way that a standard-sized depth buffer will have enough precision for my astronomically large scene. What are my options?
How do I turn off the zNear clipping plane? 
See this question in the Clipping section.