Renders cutting planes of volume geometries in the scene. More...

#include <CuttingPlanesStage.h>

Inheritance diagram for Carna::presets::CuttingPlanesStage:

Collaboration diagram for Carna::presets::CuttingPlanesStage:

Public Member Functions
	CuttingPlanesStage (unsigned int volumeGeometryType, unsigned int planeGeometryType)
	Instantiates.

virtual	~CuttingPlanesStage ()
	Deletes.

CuttingPlanesStage *	clone () const override
	Returns same `RenderStage` implementation with same configuration. More...

virtual void	renderPass (const base::math::Matrix4f &viewTransform, base::RenderTask &rt, const base::Viewport &vp) override
	Called once per pass. More...

void	setWindowingLevel (float windowingLevel)
	Sets windowing level to windowingLevel.

void	setWindowingWidth (float windowingWidth)
	Sets windowing level to windowingWidth.

void	setWindowingWidth (unsigned int windowingWidth)

void	setRenderingInverse (bool inverse)
	Sets whether brightness shall be inversely proportional to the intensity.

float	windowingLevel () const
	Tells the windowing level intensity.

float	windowingWidth () const
	Tells the windowing width.

float	minimumIntensity () const
	Tells the lower bound of the intensity window.

float	maximumIntensity () const
	Tells the upper bound of the intensity window.

bool	isRenderingInverse () const
	Tells whether brightness is inversely proportional to the intensity.

Public Member Functions inherited from Carna::base::GeometryStage< void >
	GeometryStage (unsigned int geometryType, unsigned int geometryTypeMask=RenderQueue< void >::EXACT_MATCH_GEOMETRY_TYPE_MASK)
	Instantiates s.t. the predefined rendering queue enqueues such Carna::base::Geometry scene graph nodes, whose geometry type AND-linked with geometryTypeMask equals the geometryType specified here.

virtual	~GeometryStage ()
	Releases acquired video resources.

virtual void	prepareFrame (Node &root) override
	Called once before each frame. More...

std::size_t	renderedPassesCount () const
	Tells the number of passes rendered so far since the beginning of the current frame.

GeometryFeatureType::ManagedInterface &	videoResource (GeometryFeatureType &geometryFeature) const
	Interfaces the geometryFeature video resources that were acquired by this rendering stage.

const GeometryFeatureType::ManagedInterface &	videoResource (const GeometryFeatureType &geometryFeature) const

Public Member Functions inherited from Carna::base::RenderStage
	RenderStage ()
	Instantiates in enabled-state.

virtual	~RenderStage ()
	Deletes.

void	setViewTransformFixed (bool viewTransformFixed)
	Sets whether the view transform is pass-invariant for the duration of a single frame. More...

bool	isViewTransformFixed () const
	Tells whether the view transform is pass-invariant for the duration of a single frame.

virtual void	reshape (FrameRenderer &fr, unsigned int width, unsigned int height)
	Orders this stage to reshape its buffers according to the specified dimensions. More...

bool	isInitialized () const
	Tells whether this stage is ready for rendering. More...

bool	isEnabled () const
	Tells whether this stage is enabled. Disabled stages are not rendered by render tasks.

void	setEnabled (bool)
	Sets whether this stage is enabled. Disabled stages are not rendered by render tasks.

base::FrameRenderer &	renderer ()
	References the renderer this stage belongs to. More...

const base::FrameRenderer &	renderer () const

void	addRenderStageListener (RenderStageListener &listener)
	Adds listener to the set of listeners this instance notifies in \(\mathcal O\left(\log n\right)\).

void	removeRenderStageListener (RenderStageListener &listener)
	Removes listener from the set of listeners this instance notifies in \(\mathcal O\left(\log n\right)\).

Static Public Attributes
static const float	DEFAULT_WINDOWING_WIDTH
	Holds the default value for setWindowingWidth.

static const float	DEFAULT_WINDOWING_LEVEL
	Holds the default value for setWindowingLevel.

static const unsigned int	ROLE_INTENSITIES
	Holds the role that intensity volume data is expected to take when attached to base::Geometry nodes.

Protected Member Functions
virtual void	buildRenderQueues (base::Node &root, const base::math::Matrix4f &viewTransform) override
	Builds the rendering queues of this stage.

virtual void	rewindRenderQueues () override
	Rewinds the rendering queues of this stage.

virtual void	updateRenderQueues (const base::math::Matrix4f &viewTransform) override
	Recomputes the model-view transforms of the renderables enqueued by this stage.

virtual void	render (const base::Renderable &) override
	Renders the renderable.

Protected Member Functions inherited from Carna::base::GeometryStage< void >
void	activateGLContext () const
	Ensures that the OpenGL context of the hosting Carna::base::FrameRenderer is the current one.

Additional Inherited Members
Public Attributes inherited from Carna::base::GeometryStage< void >
const unsigned int	geometryType
	Renders such geometries whose type AND-linked with geometryTypeMask equals this.

const unsigned int	geometryTypeMask
	Renders such geometries whose type AND-linked with this equals geometryType.

Protected Attributes inherited from Carna::base::GeometryStage< void >
RenderQueue< void >	rq
	Holds the predefined rendering queue of this rendering stage.

Detailed Description

Renders cutting planes of volume geometries in the scene.

The CuttingPlanesStage constructor takes two geometry type parameters:

planes = new presets::CuttingPlanesStage( GEOMETRY_TYPE_VOLUMETRIC, GEOMETRY_TYPE_CUTTING_PLANE );

renderer->appendStage( planes );

The concept of geometry types is explained here.

The following example code attaches three orthogonal planes to a node named pivot:

    pivot->localTransform = base::math::plane4f( base::math::Vector3f( 1, 1, 1 ).normalized(), 0 );
    /* Create the planes.
     */
    base::Geometry* planes[ 3 ];
    for( unsigned int i = 0; i < 3; ++i )
    {
        planes[ i ] = new base::Geometry( GEOMETRY_TYPE_CUTTING_PLANE );
        pivot->attachChild( planes[ i ] );
    }
    /* Configure the planes.
     */
    planes[ 0 ]->localTransform = base::math::plane4f( base::math::Vector3f( 1, 0, 0 ), 0.f );
    planes[ 1 ]->localTransform = base::math::plane4f( base::math::Vector3f( 0, 1, 0 ), 0.f );
    planes[ 2 ]->localTransform = base::math::plane4f( base::math::Vector3f( 0, 0, 1 ), 0.f );

This produces the rendering below.

rendering result of example code above

Author: Leonid Kostrykin

Date: 22.2.15 - 20.3.15

Definition at line 56 of file CuttingPlanesStage.h.

Member Function Documentation

◆ clone()

CuttingPlanesStage* Carna::presets::CuttingPlanesStage::clone ( ) const

overridevirtual

Returns same RenderStage implementation with same configuration.

The listeners and the rendering state are not copied.

Deprecated:: Do not use this method. It will be removed shortly.

Implements Carna::base::RenderStage.

◆ renderPass()

virtual void Carna::presets::CuttingPlanesStage::renderPass	(	const base::math::Matrix4f &	viewTransform,
		base::RenderTask &	rt,
		const base::Viewport &	vp
	)

overridevirtual

Called once per pass.

If this rendering stage maintains one or more Carna::base::RenderQueue objects, than this is the right place to build them. Note that the queues need to be rebuilt only once per frame and not per pass, unless isViewTransformFixed is false. If it is true and this is not the first invocation of this method since the last time prepareFrame was called, rewinding the queue will be sufficient.

Reimplemented from Carna::base::GeometryStage< void >.

◆ setWindowingWidth()

void Carna::presets::CuttingPlanesStage::setWindowingWidth ( unsigned int windowingWidth )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

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

include/Carna/presets/CuttingPlanesStage.h

Public Member Functions

Static Public Attributes

Protected Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ clone()

◆ renderPass()

◆ setWindowingWidth()