FGFS-4.1/OpenSceneGraph
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From Paul Martz, clean up of comments.

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This commit is contained in:
Robert Osfield 2006-06-08 12:09:51 +00:00
parent ecd5a96671
commit 7d3ddc0e1b
1 changed files with 5 additions and 4 deletions
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9
include/osg/State
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@ -67,17 +67,18 @@ namespace osg {
// forward decalr GraphicsContext
class GraphicsContext;
/** Encapsulates the current applied OpenGL modes, attributes and vertex arrays settings,.
/** Encapsulates the current applied OpenGL modes, attributes and vertex arrays settings,
* implements lazy state updating and provides accessors for querrying the current state.
. The venerable Red Book says that "OpenGL is a state machine", and this class
* represents the OpenGL state in OSG. Furthermore, \c State also has other
* important features:
* - It works as a stack of states (see \c pushStateSet() and
* \c popStateSet()). Manipulating this stack of OpenGL states manually is
* seldom needed, since OSG does this is the most common situations.
* seldom needed, since OSG does this in the most common situations.
* - It implements lazy state updating. This means that, if one requests a
* state change and that particular state is already in the requested stated, no OpenGL
* call will be made, this ensures that OpenGL pipeline is not stalled by unncessary state changes.
* state change and that particular state is already in the requested state,
* no OpenGL call will be made. This ensures that the OpenGL pipeline is not
* stalled by unncessary state changes.
* - It allows to query the current OpenGL state without calls to \c glGet*(),
* which typically stall the graphics pipeline (see, for instance,
* \c captureCurrentState() and \c getModelViewMatrix()).