Inheritance diagram for vtSimpleBillboardEngine:

Public Member Functions
void	Eval ()

Public Member Functions inherited from vtEngine
osg::Referenced *	GetTarget (uint which=0)

void	AddTarget (osg::Referenced *ptr)

void	RemoveTarget (osg::Referenced *ptr)

uint	NumTargets ()
	Return the number of targets for this engine.

virtual void	OnMouse (vtMouseEvent &event)
	Virtual handler, to catch mouse events, can be overridden by your engine class.

virtual void	OnKey (int key, int flags)
	Virtual handler, to catch keyboard events, can be overridden by your engine class.

virtual void	OnWindowSize (int width, int height)
	Virtual handler, to catch resize events, can be overridden by your engine class.

Detailed Description

A simple "Billboard" engine which turns its target to face the camera each frame.

Member Function Documentation

void vtSimpleBillboardEngine::Eval ( )

virtual

Virtual handler, will be called every frame to do the work of the engine. You must override this if you want your engine to be useful.

Reimplemented from vtEngine.