Public Types | |
| enum | BlendFuncMode { DST_ALPHA = GL_DST_ALPHA, DST_COLOR = GL_DST_COLOR, ONE = GL_ONE, ONE_MINUS_DST_ALPHA = GL_ONE_MINUS_DST_ALPHA, ONE_MINUS_DST_COLOR = GL_ONE_MINUS_DST_COLOR, ONE_MINUS_SRC_ALPHA = GL_ONE_MINUS_SRC_ALPHA, ONE_MINUS_SRC_COLOR = GL_ONE_MINUS_SRC_COLOR, SRC_ALPHA = GL_SRC_ALPHA, SRC_ALPHA_SATURATE = GL_SRC_ALPHA_SATURATE, SRC_COLOR = GL_SRC_COLOR, CONSTANT_COLOR = GL_CONSTANT_COLOR, ONE_MINUS_CONSTANT_COLOR = GL_ONE_MINUS_CONSTANT_COLOR, CONSTANT_ALPHA = GL_CONSTANT_ALPHA, ONE_MINUS_CONSTANT_ALPHA = GL_ONE_MINUS_CONSTANT_ALPHA, ZERO = GL_ZERO } |
Public Member Functions | |
| BlendFunc () | |
| BlendFunc (GLenum source, GLenum destination) | |
| BlendFunc (GLenum source, GLenum destination, GLenum source_alpha, GLenum destination_alpha) | |
| BlendFunc (const BlendFunc &trans, const CopyOp ©op=CopyOp::SHALLOW_COPY) | |
| Copy constructor using CopyOp to manage deep vs shallow copy. | |
| META_StateAttribute (osg, BlendFunc, BLENDFUNC) | |
| 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 | setFunction (GLenum source, GLenum destination) |
| void | setFunction (GLenum source_rgb, GLenum destination_rgb, GLenum source_alpha, GLenum destination_alpha) |
| void | setSource (GLenum source) |
| GLenum | getSource () const |
| void | setSourceRGB (GLenum source) |
| GLenum | getSourceRGB () const |
| void | setSourceAlpha (GLenum source) |
| GLenum | getSourceAlpha () const |
| void | setDestination (GLenum destination) |
| GLenum | getDestination () const |
| void | setDestinationRGB (GLenum destination) |
| GLenum | getDestinationRGB () const |
| void | setDestinationAlpha (GLenum destination) |
| GLenum | getDestinationAlpha () 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 | ~BlendFunc () |
Protected Attributes | |
| GLenum | _source_factor |
| GLenum | _destination_factor |
| GLenum | _source_factor_alpha |
| GLenum | _destination_factor_alpha |
Classes | |
| class | Extensions |
| Encapsulates queries of extension availability, obtains extension function pointers, and provides convenience wrappers for calling extension functions. More... | |
| osg::BlendFunc::BlendFunc | ( | ) |
| osg::BlendFunc::BlendFunc | ( | GLenum | source, | |
| GLenum | destination | |||
| ) |
| osg::BlendFunc::BlendFunc | ( | GLenum | source, | |
| GLenum | destination, | |||
| GLenum | source_alpha, | |||
| GLenum | destination_alpha | |||
| ) |
| osg::BlendFunc::BlendFunc | ( | const BlendFunc & | trans, | |
| const CopyOp & | copyop = CopyOp::SHALLOW_COPY | |||
| ) | [inline] |
Copy constructor using CopyOp to manage deep vs shallow copy.
| virtual osg::BlendFunc::~BlendFunc | ( | ) | [protected, virtual] |
| osg::BlendFunc::META_StateAttribute | ( | osg | , | |
| BlendFunc | , | |||
| BLENDFUNC | ||||
| ) |
| virtual int osg::BlendFunc::compare | ( | const StateAttribute & | sa | ) | const [inline, virtual] |
| virtual bool osg::BlendFunc::getModeUsage | ( | StateAttribute::ModeUsage & | ) | const [inline, virtual] |
| void osg::BlendFunc::setFunction | ( | GLenum | source, | |
| GLenum | destination | |||
| ) | [inline] |
| void osg::BlendFunc::setFunction | ( | GLenum | source_rgb, | |
| GLenum | destination_rgb, | |||
| GLenum | source_alpha, | |||
| GLenum | destination_alpha | |||
| ) | [inline] |
| void osg::BlendFunc::setSource | ( | GLenum | source | ) | [inline] |
| GLenum osg::BlendFunc::getSource | ( | ) | const [inline] |
| void osg::BlendFunc::setSourceRGB | ( | GLenum | source | ) | [inline] |
| GLenum osg::BlendFunc::getSourceRGB | ( | ) | const [inline] |
| void osg::BlendFunc::setSourceAlpha | ( | GLenum | source | ) | [inline] |
| GLenum osg::BlendFunc::getSourceAlpha | ( | ) | const [inline] |
| void osg::BlendFunc::setDestination | ( | GLenum | destination | ) | [inline] |
| GLenum osg::BlendFunc::getDestination | ( | ) | const [inline] |
| void osg::BlendFunc::setDestinationRGB | ( | GLenum | destination | ) | [inline] |
| GLenum osg::BlendFunc::getDestinationRGB | ( | ) | const [inline] |
| void osg::BlendFunc::setDestinationAlpha | ( | GLenum | destination | ) | [inline] |
| GLenum osg::BlendFunc::getDestinationAlpha | ( | ) | const [inline] |
| virtual void osg::BlendFunc::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::BlendFunc::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::BlendFunc::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.
GLenum osg::BlendFunc::_source_factor [protected] |
GLenum osg::BlendFunc::_destination_factor [protected] |
GLenum osg::BlendFunc::_source_factor_alpha [protected] |
GLenum osg::BlendFunc::_destination_factor_alpha [protected] |