osg::TexEnvCombine Class Reference

TexEnvCombine encapsulates the OpenGL glTexEnvCombine (texture environment) state. More...

Inheritance diagram for osg::TexEnvCombine:

[legend]List of all members.


Public Types
enum	CombineParam { REPLACE = GL_REPLACE, MODULATE = GL_MODULATE, ADD = GL_ADD, ADD_SIGNED = GL_ADD_SIGNED_ARB, INTERPOLATE = GL_INTERPOLATE_ARB, SUBTRACT = GL_SUBTRACT_ARB, DOT3_RGB = GL_DOT3_RGB_ARB, DOT3_RGBA = GL_DOT3_RGBA_ARB }
enum	SourceParam { CONSTANT = GL_CONSTANT_ARB, PRIMARY_COLOR = GL_PRIMARY_COLOR_ARB, PREVIOUS = GL_PREVIOUS_ARB, TEXTURE = GL_TEXTURE, TEXTURE0 = GL_TEXTURE0, TEXTURE1 = GL_TEXTURE0+1, TEXTURE2 = GL_TEXTURE0+2, TEXTURE3 = GL_TEXTURE0+3, TEXTURE4 = GL_TEXTURE0+4, TEXTURE5 = GL_TEXTURE0+5, TEXTURE6 = GL_TEXTURE0+6, TEXTURE7 = GL_TEXTURE0+7 }
enum	OperandParam { SRC_COLOR = GL_SRC_COLOR, ONE_MINUS_SRC_COLOR = GL_ONE_MINUS_SRC_COLOR, SRC_ALPHA = GL_SRC_ALPHA, ONE_MINUS_SRC_ALPHA = GL_ONE_MINUS_SRC_ALPHA }
Public Member Functions
	TexEnvCombine ()
	TexEnvCombine (const TexEnvCombine &texenv, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
	Copy constructor using CopyOp to manage deep vs shallow copy.
	META_StateAttribute (osg, TexEnvCombine, TEXENV)
virtual bool	isTextureAttribute () const
	Return true if StateAttribute is a type which controls texturing and needs to be issued w.r.t to specific texture unit.
virtual int	compare (const StateAttribute &sa) const
	Return -1 if this < rhs, 0 if this==rhs, 1 if this>rhs.
void	setCombine_RGB (GLint cm)
void	setCombine_Alpha (GLint cm)
GLint	getCombine_RGB () const
GLint	getCombine_Alpha () const
void	setSource0_RGB (GLint sp)
void	setSource1_RGB (GLint sp)
void	setSource2_RGB (GLint sp)
void	setSource0_Alpha (GLint sp)
void	setSource1_Alpha (GLint sp)
void	setSource2_Alpha (GLint sp)
GLint	getSource0_RGB () const
GLint	getSource1_RGB () const
GLint	getSource2_RGB () const
GLint	getSource0_Alpha () const
GLint	getSource1_Alpha () const
GLint	getSource2_Alpha () const
void	setOperand0_RGB (GLint op)
void	setOperand1_RGB (GLint op)
void	setOperand2_RGB (GLint op)
void	setOperand0_Alpha (GLint op)
void	setOperand1_Alpha (GLint op)
void	setOperand2_Alpha (GLint op)
GLint	getOperand0_RGB () const
GLint	getOperand1_RGB () const
GLint	getOperand2_RGB () const
GLint	getOperand0_Alpha () const
GLint	getOperand1_Alpha () const
GLint	getOperand2_Alpha () const
void	setScale_RGB (float scale)
void	setScale_Alpha (float scale)
float	getScale_RGB () const
float	getScale_Alpha () const
void	setConstantColor (const Vec4 &color)
const Vec4 &	getConstantColor () const
void	setConstantColorAsLightDirection (const Vec3 &direction)
	Set the constant color attribute to the given light direction for use with DOT3 combine operation.
Vec3	getConstantColorAsLightDirection () const
virtual void	apply (State &state) const
	apply the OpenGL state attributes.
Protected Member Functions
virtual	~TexEnvCombine ()
bool	needsTexEnvCombiner (GLint value) const
void	computeNeedoForTexEnvCombiners ()
Protected Attributes
bool	_needsTexEnvCrossbar
GLint	_combine_RGB
GLint	_combine_Alpha
GLint	_source0_RGB
GLint	_source1_RGB
GLint	_source2_RGB
GLint	_source0_Alpha
GLint	_source1_Alpha
GLint	_source2_Alpha
GLint	_operand0_RGB
GLint	_operand1_RGB
GLint	_operand2_RGB
GLint	_operand0_Alpha
GLint	_operand1_Alpha
GLint	_operand2_Alpha
float	_scale_RGB
float	_scale_Alpha
osg::Vec4	_constantColor

Detailed Description

TexEnvCombine encapsulates the OpenGL glTexEnvCombine (texture environment) state.

Member Enumeration Documentation

enum osg::TexEnvCombine::CombineParam

Enumeration values:

REPLACE

MODULATE

ADD

ADD_SIGNED

INTERPOLATE

SUBTRACT

DOT3_RGB

DOT3_RGBA

enum osg::TexEnvCombine::OperandParam

Enumeration values:

SRC_COLOR

ONE_MINUS_SRC_COLOR

SRC_ALPHA

ONE_MINUS_SRC_ALPHA

enum osg::TexEnvCombine::SourceParam

Enumeration values:

CONSTANT

PRIMARY_COLOR

PREVIOUS

TEXTURE

TEXTURE0

TEXTURE1

TEXTURE2

TEXTURE3

TEXTURE4

TEXTURE5

TEXTURE6

TEXTURE7

Constructor & Destructor Documentation

osg::TexEnvCombine::TexEnvCombine ( )

osg::TexEnvCombine::TexEnvCombine ( const TexEnvCombine & texenv,

const CopyOp & copyop = CopyOp::SHALLOW_COPY

) [inline]

Copy constructor using CopyOp to manage deep vs shallow copy.

virtual osg::TexEnvCombine::~TexEnvCombine ( ) [protected, virtual]

Member Function Documentation

virtual void osg::TexEnvCombine::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::TexEnvCombine::compare ( const StateAttribute & sa ) const [inline, virtual]

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

Implements osg::StateAttribute.

void osg::TexEnvCombine::computeNeedoForTexEnvCombiners ( ) [inline, protected]

GLint osg::TexEnvCombine::getCombine_Alpha ( ) const [inline]

GLint osg::TexEnvCombine::getCombine_RGB ( ) const [inline]

const Vec4& osg::TexEnvCombine::getConstantColor ( ) const [inline]

Vec3 osg::TexEnvCombine::getConstantColorAsLightDirection ( ) const [inline]

GLint osg::TexEnvCombine::getOperand0_Alpha ( ) const [inline]

GLint osg::TexEnvCombine::getOperand0_RGB ( ) const [inline]

GLint osg::TexEnvCombine::getOperand1_Alpha ( ) const [inline]

GLint osg::TexEnvCombine::getOperand1_RGB ( ) const [inline]

GLint osg::TexEnvCombine::getOperand2_Alpha ( ) const [inline]

GLint osg::TexEnvCombine::getOperand2_RGB ( ) const [inline]

float osg::TexEnvCombine::getScale_Alpha ( ) const [inline]

float osg::TexEnvCombine::getScale_RGB ( ) const [inline]

GLint osg::TexEnvCombine::getSource0_Alpha ( ) const [inline]

GLint osg::TexEnvCombine::getSource0_RGB ( ) const [inline]

GLint osg::TexEnvCombine::getSource1_Alpha ( ) const [inline]

GLint osg::TexEnvCombine::getSource1_RGB ( ) const [inline]

GLint osg::TexEnvCombine::getSource2_Alpha ( ) const [inline]

GLint osg::TexEnvCombine::getSource2_RGB ( ) const [inline]

virtual bool osg::TexEnvCombine::isTextureAttribute ( ) const [inline, virtual]

Return true if StateAttribute is a type which controls texturing and needs to be issued w.r.t to specific texture unit.

Reimplemented from osg::StateAttribute.

osg::TexEnvCombine::META_StateAttribute ( osg ,

TexEnvCombine ,

TEXENV

)

bool osg::TexEnvCombine::needsTexEnvCombiner ( GLint value ) const [inline, protected]

void osg::TexEnvCombine::setCombine_Alpha ( GLint cm )

void osg::TexEnvCombine::setCombine_RGB ( GLint cm )

void osg::TexEnvCombine::setConstantColor ( const Vec4 & color ) [inline]

void osg::TexEnvCombine::setConstantColorAsLightDirection ( const Vec3 & direction ) [inline]

Set the constant color attribute to the given light direction for use with DOT3 combine operation.