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osg::AlphaFunc Class Reference

Encapsulate 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 Methods
	AlphaFunc ()
	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 void	getAssociatedModes (std::vector< GLMode > &modes) const
	return the modes associated with this StateSet
void	setFunction (const ComparisonFunction func, const float ref)
const ComparisonFunction	getFunction () const
const float	getReferenceValue () const
virtual void	apply (State &state) const
	apply the OpenGL state attributes.
Protected Methods
virtual	~AlphaFunc ()
Protected Attributes
ComparisonFunction	_comparisonFunc
float	_referenceValue

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Detailed Description

Encapsulate OpenGL glAlphaFunc.

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Member Enumeration Documentation

enum osg::AlphaFunc::ComparisonFunction

Enumeration values: NEVER  LESS  EQUAL  LEQUAL  GREATER  NOTEQUAL  GEQUAL  ALWAYS

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Constructor & Destructor Documentation

osg::AlphaFunc::AlphaFunc (    )

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

virtual void osg::AlphaFunc::apply (  State &    state )  const [virtual]

apply the OpenGL state attributes. The global state for the current OpenGL context is passed in to allow the StateAttribute to obtain details on the the current context and state. Implements osg::StateAttribute.

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 void osg::AlphaFunc::getAssociatedModes (  std::vector< GLMode > &    modes )  const [inline, virtual]

return the modes associated with this StateSet Reimplemented from osg::StateAttribute.

const ComparisonFunction osg::AlphaFunc::getFunction (    )  const [inline]

const float osg::AlphaFunc::getReferenceValue (    )  const [inline]

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

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

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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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