osgPPU::ColorAttribute Class Reference

Stateattribute to work with blending. Can be used for animated blending operations (fadein, fadeout). More...

Public Member Functions
	META_StateAttribute (osgPPU, ColorAttribute, MATERIAL)
	ColorAttribute (const ColorAttribute &bm, const osg::CopyOp &copyop=osg::CopyOp::SHALLOW_COPY)
int	compare (const osg::StateAttribute &sa) const
void	apply (osg::State &state) const
bool	getModeUsage (osg::StateAttribute::ModeUsage &usage) const
void	setStartTime (double time)
double	getStartTime () const
void	setEndTime (double time)
double	getEndTime () const
void	setStartColor (const osg::Vec4 &color)
const osg::Vec4 &	getStartColor () const
void	setEndColor (const osg::Vec4 &color)
const osg::Vec4 &	getEndColor () const
Data Structures
class	UpdateCallback

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Detailed Description

Stateattribute to work with blending. Can be used for animated blending operations (fadein, fadeout).

This is a class derived from StateAttirbute. It allows to specify blending colors based on the reference time provided with the corresponding node visitor. This class is also used to setup any unit's geometry to default color (1,1,1,1) which is required for proper rendering.

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Member Function Documentation

int osgPPU::ColorAttribute::compare

(

const osg::StateAttribute &

sa

)

const

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

void osgPPU::ColorAttribute::apply

(

osg::State &

state

)

const

Apply attribute to the state. This will just call the glColor() function with appropriate values. The corresponding time is updated during the update traversion.

bool osgPPU::ColorAttribute::getModeUsage

(

osg::StateAttribute::ModeUsage &

usage

)

const

Set to use GL_BLEND mode, because it is required for this attribute

void osgPPU::ColorAttribute::setStartTime

(

double

time

)

Set start time for the interpolationm operation

double osgPPU::ColorAttribute::getStartTime

(

)

const

Get start interpolation time

void osgPPU::ColorAttribute::setEndTime

(

double

time

)

Set end time for the interpolationm operation

double osgPPU::ColorAttribute::getEndTime

(

)

const

Get end interpolation time

void osgPPU::ColorAttribute::setStartColor

(

const osg::Vec4 &

color

)

Set start value of the interpolationm operation

const osg::Vec4& osgPPU::ColorAttribute::getStartColor

(

)

const

Get start interpolation time

void osgPPU::ColorAttribute::setEndColor

(

const osg::Vec4 &

color

)

Set end value of the interpolationm operation

const osg::Vec4& osgPPU::ColorAttribute::getEndColor

(

)

const

Get end interpolation time

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

• ColorAttribute.h