A PrimitiveFunctor is used (in conjunction with osg::Drawable::accept (PrimitiveFunctor&)) to get access to the primitives that compose the things drawn by OSG.
More...
Public Member Functions | |
| virtual void | setVertexArray (unsigned int count, const Vec2 *vertices)=0 |
| Sets the array of vertices used to describe the primitives. More... | |
| virtual void | setVertexArray (unsigned int count, const Vec3 *vertices)=0 |
| Sets the array of vertices used to describe the primitives. More... | |
| virtual void | setVertexArray (unsigned int count, const Vec4 *vertices)=0 |
| Sets the array of vertices used to describe the primitives. More... | |
| virtual void | setVertexArray (unsigned int count, const Vec2d *vertices)=0 |
| Sets the array of vertices used to describe the primitives. More... | |
| virtual void | setVertexArray (unsigned int count, const Vec3d *vertices)=0 |
| Sets the array of vertices used to describe the primitives. More... | |
| virtual void | setVertexArray (unsigned int count, const Vec4d *vertices)=0 |
| Sets the array of vertices used to describe the primitives. More... | |
| virtual void | drawArrays (GLenum mode, GLint first, GLsizei count)=0 |
Mimics the OpenGL glDrawArrays() function. | |
| virtual void | drawElements (GLenum mode, GLsizei count, const GLubyte *indices)=0 |
Mimics the OpenGL glDrawElements() function. | |
| virtual void | drawElements (GLenum mode, GLsizei count, const GLushort *indices)=0 |
Mimics the OpenGL glDrawElements() function. | |
| virtual void | drawElements (GLenum mode, GLsizei count, const GLuint *indices)=0 |
Mimics the OpenGL glDrawElements() function. | |
| virtual void | begin (GLenum mode)=0 |
Mimics the OpenGL glBegin() function. | |
| virtual void | vertex (const Vec2 &vert)=0 |
Mimics the OpenGL glVertex() "family of functions". | |
| virtual void | vertex (const Vec3 &vert)=0 |
Mimics the OpenGL glVertex() "family of functions". | |
| virtual void | vertex (const Vec4 &vert)=0 |
Mimics the OpenGL glVertex() "family of functions". | |
| virtual void | vertex (float x, float y)=0 |
Mimics the OpenGL glVertex() "family of functions". | |
| virtual void | vertex (float x, float y, float z)=0 |
Mimics the OpenGL glVertex() "family of functions". | |
| virtual void | vertex (float x, float y, float z, float w)=0 |
Mimics the OpenGL glVertex() "family of functions". | |
| virtual void | end ()=0 |
Mimics the OpenGL glEnd() function. | |
| void | useVertexCacheAsVertexArray () |
Public Attributes | |
| std::vector< Vec3 > | _vertexCache |
| bool | _treatVertexDataAsTemporary |
Detailed Description
A PrimitiveFunctor is used (in conjunction with osg::Drawable::accept (PrimitiveFunctor&)) to get access to the primitives that compose the things drawn by OSG.
If osg::Drawable::accept() is called with a PrimitiveFunctor parameter, the Drawable will "pretend" it is drawing itself, but instead of calling real OpenGL functions, it will call PrimitiveFunctor's member functions that "mimic" the OpenGL calls.
Concrete subclasses of PrimitiveFunctor must implement these methods so that they performs whatever they want.
Member Function Documentation
◆ setVertexArray() [1/6]
|
pure virtual |
Sets the array of vertices used to describe the primitives.
Somehow mimics the OpenGL glVertexPointer() function.
Implemented in osgUtil::Statistics, osg::TemplatePrimitiveFunctor< T >, and osg::TriangleFunctor< T >.
◆ setVertexArray() [2/6]
|
pure virtual |
Sets the array of vertices used to describe the primitives.
Somehow mimics the OpenGL glVertexPointer() function.
Implemented in osgUtil::Statistics, osg::TemplatePrimitiveFunctor< T >, and osg::TriangleFunctor< T >.
◆ setVertexArray() [3/6]
|
pure virtual |
Sets the array of vertices used to describe the primitives.
Somehow mimics the OpenGL glVertexPointer() function.
Implemented in osgUtil::Statistics, osg::TemplatePrimitiveFunctor< T >, and osg::TriangleFunctor< T >.
◆ setVertexArray() [4/6]
|
pure virtual |
Sets the array of vertices used to describe the primitives.
Somehow mimics the OpenGL glVertexPointer() function.
Implemented in osgUtil::Statistics, osg::TemplatePrimitiveFunctor< T >, and osg::TriangleFunctor< T >.
◆ setVertexArray() [5/6]
|
pure virtual |
Sets the array of vertices used to describe the primitives.
Somehow mimics the OpenGL glVertexPointer() function.
Implemented in osg::TemplatePrimitiveFunctor< T >, osgUtil::Statistics, and osg::TriangleFunctor< T >.
◆ setVertexArray() [6/6]
|
pure virtual |
Sets the array of vertices used to describe the primitives.
Somehow mimics the OpenGL glVertexPointer() function.
Implemented in osg::TemplatePrimitiveFunctor< T >, osg::TriangleFunctor< T >, and osgUtil::Statistics.
The documentation for this class was generated from the following file:
- /home/karlu20/private/installs/OpenSceneGraph/include/osg/PrimitiveSet
