The MorphingCallback class implements a simple morphing animation mechanism using the GPU acceleration where available. More...

#include <MorphingCallback.hpp>

Inheritance diagram for vl::MorphingCallback:

List of all members.

Public Member Functions
	MorphingCallback ()
	~MorphingCallback ()
virtual void	onActorRenderStarted (Actor actor, real frame_clock, const Camera cam, Renderable renderable, const Shader , int pass)
	Event generated just before an Actor is rendered but after the render states are ready and setup.
virtual void	onActorDelete (Actor *)
	Event notifying that an Actor is being deleted.
void	bindActor (Actor *actor)
void	init (ResourceDatabase *res_db)
	Initializes a MorphingCallback from a ResourceDatabase.
void	blendFrames (int a, int b, float t)
void	setAnimation (int start, int end, float period)
void	startAnimation (real time=-1)
void	stopAnimation ()
void	initFrom (MorphingCallback *morph_cb)
void	resetGLSLBindings ()
bool	glslVertexBlendEnabled () const
void	setGLSLVertexBlendEnabled (bool enable)
Geometry *	geometry ()
const Geometry *	geometry () const
bool	animationStarted () const
Protected Attributes
ref< Geometry >	mGeometry
ref< ArrayFloat3 >	mVertices
ref< ArrayFloat3 >	mNormals
std::vector< ref< ArrayFloat3 > >	mVertexFrames
std::vector< ref< ArrayFloat3 > >	mNormalFrames
real	mLastUpdate
real	mElapsedTime
real	mAnimationStartTime
int	mAnimationStart
int	mAnimationEnd
float	mAnimationPeriod
bool	mAnimationStarted
int	mFrame1
int	mFrame2
bool	mGLSLVertexBlendEnabled
int	mVertex2_Binding
int	mNormal2_Binding
int	mAnim_t_Binding
float	mAnim_t

Detailed Description

The MorphingCallback class implements a simple morphing animation mechanism using the GPU acceleration where available.

Definition at line 44 of file MorphingCallback.hpp.

Constructor & Destructor Documentation

MorphingCallback::MorphingCallback ( )

Definition at line 41 of file MorphingCallback.cpp.

References mAnim_t, mFrame1, mFrame2, mGeometry, mLastUpdate, resetGLSLBindings(), setAnimation(), setGLSLVertexBlendEnabled(), and VL_DEBUG_SET_OBJECT_NAME.

MorphingCallback::~MorphingCallback ( )

Definition at line 56 of file MorphingCallback.cpp.

Member Function Documentation

void MorphingCallback::onActorRenderStarted	(	Actor *	actor,
		real	frame_clock,
		const Camera *	cam,
		Renderable *	renderable,
		const Shader *	shader,
		int	pass
	)		`[virtual]`

Event generated just before an Actor is rendered but after the render states are ready and setup.

Reimplement to react to this event.

Parameters:

actor	The Actor bound to this rendering callback.
frame_clock	The current rendering frame time, usually used for animation purposes.
cam	The camera used for the current rendering.
renderable	The currently selected Actor LOD.
shader	The currently active Shader.
pass	The current Actor[s] rendering pass.

Implements vl::ActorEventCallback.

Definition at line 60 of file MorphingCallback.cpp.

References blendFrames(), vl::BUM_KeepRamBuffer, vl::ref< T >::get(), vl::GLSLProgram::getAttribLocation(), vl::GLSLProgram::getUniformLocation(), vl::Shader::glslProgram(), glslVertexBlendEnabled(), mAnim_t, mAnim_t_Binding, mAnimationEnd, mAnimationPeriod, mAnimationStart, mAnimationStarted, mAnimationStartTime, mElapsedTime, mFrame1, mFrame2, mGeometry, mLastUpdate, mNormal2_Binding, mNormalFrames, mNormals, mVertex2_Binding, mVertexFrames, mVertices, NULL, and VL_CHECK.

virtual void vl::MorphingCallback::onActorDelete ( Actor * actor ) [inline, virtual]

Event notifying that an Actor is being deleted.

Implements vl::ActorEventCallback.

Definition at line 55 of file MorphingCallback.hpp.

void MorphingCallback::bindActor ( Actor * actor )

Definition at line 168 of file MorphingCallback.cpp.

References vl::Actor::actorEventCallbacks(), vl::ref< T >::get(), mGeometry, vl::Collection< T >::push_back(), and vl::Actor::setLod().

void MorphingCallback::init ( ResourceDatabase * res_db )

Initializes a MorphingCallback from a ResourceDatabase.

The given ResourceDatabase must contain a Geometry with all the desired DrawCalls and vertex attributes setup with the exception of the vertex position array and vertex normal array since they are automatically generated in realtime time during the rendering from the vertex and normal frames specified below. In addition ResourceDatabase must contain:

N ArrayFloat3 objects named 'vertex_frame' containing the vertex position for every frame
N ArrayFloat3 objects named 'normal_frame' containing the vertex normal for every frame where N is the number of animation frames.

Definition at line 174 of file MorphingCallback.cpp.

References vl::ResourceDatabase::count(), vl::Log::error(), geometry(), vl::ResourceDatabase::get(), mGeometry, mNormalFrames, mNormals, mVertexFrames, mVertices, NULL, and vl::Object::objectName().