A weather layer uses one or more weather effects to create a top level visual.

A weather layer helps simulate an environmental condition such as blowing dust, blowing sand, blowing snow or hail. Weather layers can be globally visible or visible based on weather areas (see DtWeatherArea).

This class has a simulation update which updates all active weather effects in the layer. Weather effects queue update jobs to a job splitter which is provided by the update caller. There is also a post update for each weather effect for items that cannot use multithreading (currently intersection tests).

During scenegraph culling, this class calls cull methods on individual weather effects. If a weather effect is not culled, it submits a sort job to a job splitter

Inheritance diagram for makVrv::DtWeatherLayer:

[legend]

Public Types
enum	LayerType { LayerTypeNone, LayerTypeBlowingDust, LayerTypeBlowingSand, LayerTypeBlowingSnow, LayerTypeHail }

enum	EffectConstrainType { EffectConstrainType2d, EffectConstrainType3d, EffectConstrainType2dAndTop }

Public Member Functions
virtual	~DtWeatherLayer ()

virtual void	init (DtDe &de)

virtual void	releaseGLObjects (osg::State *state) const

virtual DtWeatherLayer::LayerType	layerType () const

virtual void	setIntensity (float level)

float	intensity () const

virtual void	setWind (float windDirectionRad, float windSpeedMps)

virtual void	simulationUpdate (float timeStep, double currentTime, DtJobSplitter *jobSplitter)

virtual void	postSimulationUpdate (float timeStep, double currentTime)

virtual void	cullUpdate (const osg::Vec3d &camPos, const osg::Matrixd &basis, DtJobSplitter *jobSplitter)

virtual void	drawWeatherEffects (DtWeatherEffect::DrawData &drawData)

virtual void	drawAreaWeatherEffects (DtWeatherEffect::DrawData &drawData, DtWeatherArea *area)

virtual void	addWeatherEffect (DtWeatherEffect *effect)

virtual void	setCulled (bool culled)

virtual bool	culled () const

Public Member Functions inherited from makVrv::DtVirtualBaseClass
	DtVirtualBaseClass ()

virtual	~DtVirtualBaseClass ()

Protected Types
typedef std::vector < DtWeatherEffect * >	WeatherEffectSet

Protected Member Functions
	DtWeatherLayer ()

virtual void	computeSurfaceParameters (DtWeatherEffect::DrawData &drawData, DtWeatherArea *area)

Protected Attributes
LayerType	myLayerType

WeatherEffectSet	myWeatherEffectSet

float	myIntensity

bool	myCulled

EffectConstrainType	myEffectConstrainType

Private Member Functions
	DtWeatherLayer (const DtWeatherLayer &other)=delete

DtWeatherLayer &	operator= (const DtWeatherLayer &other)=delete

Member Typedef Documentation

typedef std::vector<DtWeatherEffect*> makVrv::DtWeatherLayer::WeatherEffectSet

protected

This type defines a set of weather effects.

Member Enumeration Documentation

enum makVrv::DtWeatherLayer::LayerType

brief Layer type enumerations. Layer types help with descibing the layer for tying layer to areas.

Enumerator
LayerTypeNone
LayerTypeBlowingDust
LayerTypeBlowingSand
LayerTypeBlowingSnow
LayerTypeHail

enum makVrv::DtWeatherLayer::EffectConstrainType

brief Effect constain type enumerations. Effect constrain types define how layer effects are constrained to an area bounds

Enumerator
EffectConstrainType2d
EffectConstrainType3d
EffectConstrainType2dAndTop

Constructor & Destructor Documentation

virtual makVrv::DtWeatherLayer::~DtWeatherLayer ( )

virtual

DTOR.

makVrv::DtWeatherLayer::DtWeatherLayer ( )

protected

CTOR.

makVrv::DtWeatherLayer::DtWeatherLayer ( const DtWeatherLayer & other )

privatedelete

Copy Constructor not implemented - Copy not allowed.

Member Function Documentation

DtWeatherLayer& makVrv::DtWeatherLayer::operator= ( const DtWeatherLayer & other )

privatedelete

Assignment Operator not implemented - Assignment not allowed.

virtual void makVrv::DtWeatherLayer::init ( DtDe & de )

virtual

Called after creation to initialize effects.

Reimplemented in makVrv::DtWeatherLayerBlowingDust, makVrv::DtWeatherLayerBlowingSand, makVrv::DtWeatherLayerBlowingSnow, and makVrv::DtWeatherLayerHail.

virtual void makVrv::DtWeatherLayer::releaseGLObjects ( osg::State * state ) const

virtual

Release all gl objects used by items in this layer.

virtual DtWeatherLayer::LayerType makVrv::DtWeatherLayer::layerType ( ) const

virtual

Gets a type for this layer. The layer type is used for determining things like tying layers to weather areas.

virtual void makVrv::DtWeatherLayer::setIntensity ( float level )

virtual

Sets the weather intensity for this layer. This will control the intensity of weather effects.

Parameters

level The intensity value (0.0 - 1.0).

float makVrv::DtWeatherLayer::intensity ( ) const

Gets the weather intensity for this layer.

virtual void makVrv::DtWeatherLayer::setWind	(	float	windDirectionRad,
		float	windSpeedMps
	)

virtual

Sets the current wind.

Parameters

windDirectionRad	The wind direction in radians.
windSpeedMps	The wind speed in meters per second.

virtual void makVrv::DtWeatherLayer::simulationUpdate	(	float	timeStep,
		double	currentTime,
		DtJobSplitter *	jobSplitter
	)

virtual

Run a simulation update for weather effects in this layer.

Parameters

timeStep	The time step to simulate.
currentTime	The current simulation time.
jobSplitter	A job splitter to add simulation jobs to.

virtual void makVrv::DtWeatherLayer::postSimulationUpdate	(	float	timeStep,
		double	currentTime
	)

virtual

Run a post simulation update. This is specifically here to update things that might not be job thread safe.

Parameters

timeStep The time step to simulate.

virtual void makVrv::DtWeatherLayer::cullUpdate	(	const osg::Vec3d &	camPos,
		const osg::Matrixd &	basis,
		DtJobSplitter *	jobSplitter
	)

virtual

Prepares the layer for drawing based on the camera position.

Parameters

camPos	The camera position.
basisRot	The basis rotation at the camera location.
jobSplitter	A job splitter to add predraw jobs to.

virtual void makVrv::DtWeatherLayer::drawWeatherEffects ( DtWeatherEffect::DrawData & drawData )

virtual

Draw all weather effects in this layer.

Parameters

drawData The data used for drawing.

virtual void makVrv::DtWeatherLayer::drawAreaWeatherEffects	(	DtWeatherEffect::DrawData &	drawData,
		DtWeatherArea *	area
	)

virtual

Draw all weather effects in this layer for the given area.

Parameters

drawData	The data used for drawing.
area	The associated local area to draw the effects for.

virtual void makVrv::DtWeatherLayer::addWeatherEffect ( DtWeatherEffect * effect )

virtual

Adds the given weather effect to this layer.

Parameters

effect The effect to add.

virtual void makVrv::DtWeatherLayer::setCulled ( bool culled )

virtual

Sets the rendering culled state for this layer.

Parameters

culled If true, the object is considered culled.

virtual bool makVrv::DtWeatherLayer::culled ( ) const

virtual

Returns the culled state for this layer.

virtual void makVrv::DtWeatherLayer::computeSurfaceParameters	(	DtWeatherEffect::DrawData &	drawData,
		DtWeatherArea *	area
	)

protectedvirtual

Computes and sets up effect surface drawing parameters.

Parameters

drawData	The drawing data structure containing draw parameters.
area	The area containing a surface.

Member Data Documentation

LayerType makVrv::DtWeatherLayer::myLayerType

protected

WeatherEffectSet makVrv::DtWeatherLayer::myWeatherEffectSet

protected

float makVrv::DtWeatherLayer::myIntensity

protected

bool makVrv::DtWeatherLayer::myCulled

protected

EffectConstrainType makVrv::DtWeatherLayer::myEffectConstrainType

protected

The documentation for this class was generated from the following file:

/data/exports/nrhent7-1/nightly/docs/vrForces.vrf5-0-branch/include/vrvOsg/DtWeatherLayer.h

Public Types

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Private Member Functions

Member Typedef Documentation

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation