Abstract class for objects with special OpenGL rendering. More...

#include <abstractdrawableglobject.h>

Inheritance diagram for AbstractDrawableGLObject:

Public Member Functions
virtual	~AbstractDrawableGLObject ()

virtual void	initializeGL ()=0
	Called when this object is to be used with a new OpenGL context. Must be called before the first draw() call in the context. More...

virtual void	draw (QMatrix4x4 projection, QMatrix4x4 transformation)=0
	Performs OpenGL calls to draw the object, assuming a context is bound. More...

Detailed Description

Abstract class for objects with special OpenGL rendering.

Abstract class containing a single draw() function for customized OpenGL rendering. The purpose of this class is to allow a scene to contain non-mesh widgets (like a widget for visualizing the axes).

Constructor & Destructor Documentation

◆ ~AbstractDrawableGLObject()

virtual AbstractDrawableGLObject::~AbstractDrawableGLObject ( )

inlinevirtual

Member Function Documentation

◆ draw()

virtual void AbstractDrawableGLObject::draw	(	QMatrix4x4	projection,
		QMatrix4x4	transformation
	)

pure virtual

Performs OpenGL calls to draw the object, assuming a context is bound.

Parameters

projection	The projection matrix used for the meshes.
transformation	The transformation matrix used for the meshes. The purpose of separating this from the projection is to allow a user to extract the translation and rotation components.

The gl_Position of a vertex V is given by (projection * transformation * V).

Implemented in DrawableAxes.

◆ initializeGL()

virtual void AbstractDrawableGLObject::initializeGL ( )