osg::AlphaFunc Class Reference

Encapsulates OpenGL glAlphaFunc. More...

Inheritance diagram for osg::AlphaFunc:

[legend]

List of all members.

Public Types
enum	ComparisonFunction {   NEVER = GL_NEVER, LESS = GL_LESS, EQUAL = GL_EQUAL, LEQUAL = GL_LEQUAL,   GREATER = GL_GREATER, NOTEQUAL = GL_NOTEQUAL, GEQUAL = GL_GEQUAL, ALWAYS = GL_ALWAYS }
Public Member Functions
	AlphaFunc ()
	AlphaFunc (ComparisonFunction func, float ref)
	AlphaFunc (const AlphaFunc &af, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
	Copy constructor using CopyOp to manage deep vs shallow copy.
	META_StateAttribute (osg, AlphaFunc, ALPHAFUNC)
virtual int	compare (const StateAttribute &sa) const
	Return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.
virtual bool	getModeUsage (StateAttribute::ModeUsage &usage) const
	Return the modes associated with this StateAttribute.
void	setFunction (ComparisonFunction func, float ref)
void	setFunction (ComparisonFunction func)
ComparisonFunction	getFunction () const
void	setReferenceValue (float value)
float	getReferenceValue () const
virtual void	apply (State &state) const
	apply the OpenGL state attributes.
Protected Member Functions
virtual	~AlphaFunc ()
Protected Attributes
ComparisonFunction	_comparisonFunc
float	_referenceValue

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Detailed Description

Encapsulates OpenGL glAlphaFunc.

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Member Enumeration Documentation

enum osg::AlphaFunc::ComparisonFunction

Enumerator:

NEVER
LESS
EQUAL
LEQUAL
GREATER
NOTEQUAL
GEQUAL
ALWAYS

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Constructor & Destructor Documentation

osg::AlphaFunc::AlphaFunc

(

)

osg::AlphaFunc::AlphaFunc	(	ComparisonFunction	func,
		float	ref
	)			[inline]

osg::AlphaFunc::AlphaFunc	(	const AlphaFunc &	af,
		const CopyOp &	copyop = CopyOp::SHALLOW_COPY
	)			[inline]

Copy constructor using CopyOp to manage deep vs shallow copy.

virtual osg::AlphaFunc::~AlphaFunc

(

)

[protected, virtual]

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Member Function Documentation

osg::AlphaFunc::META_StateAttribute	(	osg	,
		AlphaFunc	,
		ALPHAFUNC
	)

virtual int osg::AlphaFunc::compare

(

const StateAttribute &

sa

)

const [inline, virtual]

Return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.

Implements osg::StateAttribute.

virtual bool osg::AlphaFunc::getModeUsage

(

StateAttribute::ModeUsage &

)

const [inline, virtual]

Return the modes associated with this StateAttribute.

Reimplemented from osg::StateAttribute.

void osg::AlphaFunc::setFunction	(	ComparisonFunction	func,
		float	ref
	)			[inline]

void osg::AlphaFunc::setFunction

(

ComparisonFunction

func

)

[inline]

ComparisonFunction osg::AlphaFunc::getFunction

(

)

const [inline]

void osg::AlphaFunc::setReferenceValue

(

float

value

)

[inline]

float osg::AlphaFunc::getReferenceValue

(

)

const [inline]

virtual void osg::AlphaFunc::apply

(

State &

)

const [virtual]

apply the OpenGL state attributes.

The render info for the current OpenGL context is passed in to allow the StateAttribute to obtain details on the the current context and state.

Reimplemented from osg::StateAttribute.

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Member Data Documentation

ComparisonFunction osg::AlphaFunc::_comparisonFunc [protected]

float osg::AlphaFunc::_referenceValue [protected]

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The documentation for this class was generated from the following file:

• AlphaFunc

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