FAQ/Clipping, Culling, and Visibility Testing: Difference between revisions

Latest revision as of 18:33, 7 February 2015

Clipping: How do I tell if a vertex has been clipped or not?; When an OpenGL primitive moves placing one vertex outside the window, suddenly the color or texture mapping is incorrect. What's going on?; I know my geometry is inside the view volume. How can I turn off OpenGL's view-volume clipping to maximize performance?; When I move the viewpoint close to an object, it starts to disappear. How can I disable OpenGL's zNear clipping plane?
Occlusion Query: How do I perform occlusion or visibility testing?
FAQ/Stencil Mask: How do I render to a nonrectangular viewport?
Raster Position And Clipping: How do I draw glBitmap() or glDrawPixels() primitives that have an initial glRasterPos() outside the window's left or bottom edge?
Scissor Test And Framebuffer Clearing: Why doesn't glClear() work for areas outside the scissor rectangle?
Culling: How does face culling work? Why doesn't it use the surface normal?

Revision as of 18:31, 7 February 2015 (view source) Alfonse (talk \| contribs) m (Alfonse moved page Clipping, Culling, and Visibility Testing to FAQ/Clipping, Culling, and Visibility Testing without leaving a redirect: This is a FAQ page, so it should be under the FAQ/ subheading. Nothing links to it or its redirect, so it'...) ← Older edit		Latest revision as of 18:33, 7 February 2015 (view source) Alfonse (talk \| contribs) (This is a FAQ page, not a thing.)
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	; [[Culling]] : How does face culling work? Why doesn't it use the surface normal?		; [[Culling]] : How does face culling work? Why doesn't it use the surface normal?

	[[Category:~~General OpenGL~~]]		[[Category:FAQ]]