osg::BlendColor Class Reference

Encapsulates OpenGL blend/transparency state. More...

Inheritance diagram for osg::BlendColor:

[legend]

List of all members.

Public Member Functions
	BlendColor ()
	BlendColor (const osg::Vec4 &constantColor)
	BlendColor (const BlendColor &trans, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
	Copy constructor using CopyOp to manage deep vs shallow copy.
	META_StateAttribute (osg, BlendColor, BLENDCOLOR)
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	setConstantColor (const osg::Vec4 &color)
osg::Vec4 &	getConstantColor ()
const osg::Vec4 &	getConstantColor () const
virtual void	apply (State &state) const
	apply the OpenGL state attributes.
Static Public Member Functions
static Extensions *	getExtensions (unsigned int contextID, bool createIfNotInitalized)
	Returns the Extensions object for the given context.
static void	setExtensions (unsigned int contextID, Extensions *extensions)
	setExtensions() allows users to override the extensions across graphics contexts.
Protected Member Functions
virtual	~BlendColor ()
Protected Attributes
osg::Vec4	_constantColor
Classes
class	Extensions
	Encapsulates queries of extension availability, obtains extension function pointers, and provides convinience wrappers for calling extension functions. More...

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Detailed Description

Encapsulates OpenGL blend/transparency state.

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Constructor & Destructor Documentation

osg::BlendColor::BlendColor

(

)

osg::BlendColor::BlendColor

(

const osg::Vec4 &

constantColor

)

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

Copy constructor using CopyOp to manage deep vs shallow copy.

virtual osg::BlendColor::~BlendColor

(

)

[protected, virtual]

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Member Function Documentation

osg::BlendColor::META_StateAttribute	(	osg	,
		BlendColor	,
		BLENDCOLOR
	)

virtual int osg::BlendColor::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::BlendColor::getModeUsage

(

StateAttribute::ModeUsage &

)

const [inline, virtual]

Return the modes associated with this StateAttribute.

Reimplemented from osg::StateAttribute.

void osg::BlendColor::setConstantColor

(

const osg::Vec4 &

color

)

[inline]

osg::Vec4& osg::BlendColor::getConstantColor

(

)

[inline]

const osg::Vec4& osg::BlendColor::getConstantColor

(

)

const [inline]

virtual void osg::BlendColor::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.

static Extensions* osg::BlendColor::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.

static void osg::BlendColor::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

osg::Vec4 osg::BlendColor::_constantColor [protected]

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

• BlendColor

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