osg::BlendEquation Class Reference

Inheritance diagram for osg::BlendEquation:

List of all members.

Public Types
	RGBA_MIN = GL_MIN
	RGBA_MAX = GL_MAX
	ALPHA_MIN = GL_ALPHA_MIN_SGIX
	ALPHA_MAX = GL_ALPHA_MAX_SGIX
	LOGIC_OP = GL_LOGIC_OP
	FUNC_ADD = GL_FUNC_ADD
	FUNC_SUBTRACT = GL_FUNC_SUBTRACT
	FUNC_REVERSE_SUBTRACT = GL_FUNC_REVERSE_SUBTRACT
enum	Equation {   RGBA_MIN = GL_MIN, RGBA_MAX = GL_MAX, ALPHA_MIN = GL_ALPHA_MIN_SGIX, ALPHA_MAX = GL_ALPHA_MAX_SGIX,   LOGIC_OP = GL_LOGIC_OP, FUNC_ADD = GL_FUNC_ADD, FUNC_SUBTRACT = GL_FUNC_SUBTRACT, FUNC_REVERSE_SUBTRACT = GL_FUNC_REVERSE_SUBTRACT }
Public Member Functions
	BlendEquation ()
	BlendEquation (Equation equation)
	BlendEquation (const BlendEquation &trans, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
	META_StateAttribute (osg, BlendEquation, BLENDEQUATION)
virtual int	compare (const StateAttribute &sa) const
virtual bool	getModeUsage (ModeUsage &usage) const
void	setEquation (Equation equation)
Equation	getEquation () const
virtual void	apply (State &state) const
Static Public Member Functions
static Extensions *	getExtensions (unsigned int contextID, bool createIfNotInitalized)
static void	setExtensions (unsigned int contextID, Extensions *extensions)
Protected Member Functions
virtual	~BlendEquation ()
Protected Attributes
Equation	_equation
Classes
class	Extensions

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Detailed Description

Encapsulates OpenGL BlendEquation state.

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Member Enumeration Documentation

enum osg::BlendEquation::Equation

Enumerator:

RGBA_MIN
RGBA_MAX
ALPHA_MIN
ALPHA_MAX
LOGIC_OP
FUNC_ADD
FUNC_SUBTRACT
FUNC_REVERSE_SUBTRACT

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Constructor & Destructor Documentation

osg::BlendEquation::BlendEquation

(

)

osg::BlendEquation::BlendEquation

(

Equation

equation

)

osg::BlendEquation::BlendEquation	(	const BlendEquation &	trans,
		const CopyOp &	copyop = CopyOp::SHALLOW_COPY
	)			[inline]

Copy constructor using CopyOp to manage deep vs shallow copy.

virtual osg::BlendEquation::~BlendEquation

(

)

[protected, virtual]

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Member Function Documentation

virtual void osg::BlendEquation::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::BlendEquation::compare

(

const StateAttribute &

sa

)

const [inline, virtual]

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

Implements osg::StateAttribute.

Equation osg::BlendEquation::getEquation

(

)

const [inline]

static Extensions* osg::BlendEquation::getExtensions	(	unsigned int	contextID,
		bool	createIfNotInitalized
	)			[static]

Returns the Extensions object for the given context. If createIfNotInitalized is true and the Exentsions object doesn't exist, getExtensions() creates it on the given context. Returns NULL if createIfNotInitalized is false and the Extensions object doesn't exist.

virtual bool osg::BlendEquation::getModeUsage

(

ModeUsage &

usage

)

const [inline, virtual]

osg::BlendEquation::META_StateAttribute	(	osg	,
		BlendEquation	,
		BLENDEQUATION
	)

void osg::BlendEquation::setEquation

(

Equation

equation

)

[inline]

static void osg::BlendEquation::setExtensions	(	unsigned int	contextID,
		Extensions *	extensions
	)			[static]

setExtensions() allows users to override the extensions across graphics contexts. Typically used when you have different extensions supported across graphics pipes, but need to ensure that they all use the same low common denominator extensions.

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Member Data Documentation

Equation osg::BlendEquation::_equation [protected]

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

• BlendEquation

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