A small collection of noise routines for LIC. More...

#include <vtkSurfaceLICHelper.h>

Collaboration diagram for vtkSurfaceLICHelper:

Public Member Functions
	vtkSurfaceLICHelper ()

	~vtkSurfaceLICHelper ()

void	ReleaseGraphicsResources (vtkWindow *win)
	Free textures and shader programs we're holding a reference to. More...

void	ClearTextures ()
	Free textures we're holding a reference to. More...

void	AllocateTextures (vtkOpenGLRenderWindow context, int viewsize)
	Allocate textures. More...

void	AllocateTexture (vtkOpenGLRenderWindow context, int viewsize, vtkSmartPointer< vtkTextureObject > &tex, int filter=vtkTextureObject::Nearest)
	Allocate a size texture, store in the given smart pointer. More...

void	AllocateDepthTexture (vtkOpenGLRenderWindow context, int viewsize, vtkSmartPointer< vtkTextureObject > &tex)
	Allocate a size texture, store in the given smart pointer. More...

void	Updated ()
	After LIC has been computed reset/clean internal state. More...

void	UpdateAll ()
	Force all stages to re-execute. More...

void	ViewportQuadPoints (const vtkPixelExtent &viewportExt, GLfloat *quadpts)
	Convert a viewport to a bounding box and it's texture coordinates for a screen size texture. More...

void	ViewportQuadTextureCoords (const vtkPixelExtent &viewExt, const vtkPixelExtent &viewportExt, GLfloat *tcoords)
	Convert a viewport to a bounding box and it's texture coordinates for a screen size texture. More...

void	RenderQuad (const vtkPixelExtent &viewExt, const vtkPixelExtent &viewportExt, vtkOpenGLHelper *cbo)
	Render a quad (to trigger a shader to run) More...

int	idx (int row, int col)
	Compute the index into the 4x4 OpenGL ordered matrix. More...

bool	VisibilityTest (double ndcBBox[24])
	given a axes aligned bounding box in normalized device coordinates test for view frustum visibility. More...

bool	ProjectBounds (double PMV[16], int viewsize[2], double bounds[6], vtkPixelExtent &screenExt)
	Given world space bounds, compute bounding boxes in clip and normalized device coordinates and perform view frustum visiblity test. More...

int	ProjectBounds (vtkRenderer ren, vtkActor actor, vtkDataObject *dobj, int viewsize[2], vtkPixelExtent &dataExt, std::deque< vtkPixelExtent > &blockExts)
	Compute screen space extents for each block in the input dataset and for the entire dataset. More...

void	GetPixelBounds (float *rgba, int ni, vtkPixelExtent &ext)
	Shrink an extent to tightly bound non-zero values. More...

void	GetPixelBounds (float *rgba, int ni, std::deque< vtkPixelExtent > &blockExts)
	Shrink a set of extents to tightly bound non-zero values cull extent if it's empty. More...


void	ViewportQuadTextureCoords (GLfloat *tcoords)
	Convert viewport to texture coordinates. More...


void	ViewQuadPoints (GLfloat *quadpts)
	Convert the entire view to a bounding box and it's texture coordinates for a screen size texture. More...


void	ViewQuadTextureCoords (GLfloat *tcoords)
	Convert the entire view to a bounding box and it's texture coordinates for a screen size texture. More...

Static Public Member Functions
static bool	IsSupported (vtkOpenGLRenderWindow *context)
	Check for OpenGL support. More...

static void	StreamingFindMinMax (vtkFrameBufferObject2 *fbo, std::deque< vtkPixelExtent > &blockExts, float &min, float &max)

Public Attributes
vtkSmartPointer< vtkImageData >	Noise

vtkSmartPointer< vtkTextureObject >	NoiseImage

vtkSmartPointer< vtkTextureObject >	DepthImage

vtkSmartPointer< vtkTextureObject >	GeometryImage

vtkSmartPointer< vtkTextureObject >	VectorImage

vtkSmartPointer< vtkTextureObject >	CompositeVectorImage

vtkSmartPointer< vtkTextureObject >	MaskVectorImage

vtkSmartPointer< vtkTextureObject >	CompositeMaskVectorImage

vtkSmartPointer< vtkTextureObject >	LICImage

vtkSmartPointer< vtkTextureObject >	RGBColorImage

vtkSmartPointer< vtkTextureObject >	HSLColorImage

bool	HasVectors

std::deque< vtkPixelExtent >	BlockExts

vtkOpenGLHelper *	ColorEnhancePass

vtkOpenGLHelper *	CopyPass

vtkOpenGLHelper *	ColorPass

int	Viewsize [2]

vtkSmartPointer< vtkSurfaceLICComposite >	Compositor

vtkSmartPointer< vtkFrameBufferObject2 >	FBO

vtkSmartPointer< vtkLineIntegralConvolution2D >	LICer

vtkPainterCommunicator *	Communicator

vtkPixelExtent	DataSetExt

vtkWeakPointer< vtkOpenGLRenderWindow >	Context

bool	ContextNeedsUpdate

bool	CommunicatorNeedsUpdate

Detailed Description

A small collection of noise routines for LIC.

Definition at line 43 of file vtkSurfaceLICHelper.h.

Constructor & Destructor Documentation

vtkSurfaceLICHelper::vtkSurfaceLICHelper ( )

vtkSurfaceLICHelper::~vtkSurfaceLICHelper ( )

Member Function Documentation

static bool vtkSurfaceLICHelper::IsSupported ( vtkOpenGLRenderWindow * context )

static

Check for OpenGL support.

void vtkSurfaceLICHelper::ReleaseGraphicsResources ( vtkWindow * win )

Free textures and shader programs we're holding a reference to.

void vtkSurfaceLICHelper::ClearTextures ( )

Free textures we're holding a reference to.

void vtkSurfaceLICHelper::AllocateTextures	(	vtkOpenGLRenderWindow *	context,
		int *	viewsize
	)

Allocate textures.

void vtkSurfaceLICHelper::AllocateTexture	(	vtkOpenGLRenderWindow *	context,
		int *	viewsize,
		vtkSmartPointer< vtkTextureObject > &	tex,
		int	filter = `vtkTextureObject::Nearest`
	)

Allocate a size texture, store in the given smart pointer.

void vtkSurfaceLICHelper::AllocateDepthTexture	(	vtkOpenGLRenderWindow *	context,
		int *	viewsize,
		vtkSmartPointer< vtkTextureObject > &	tex
	)

Allocate a size texture, store in the given smart pointer.

void vtkSurfaceLICHelper::Updated ( )

After LIC has been computed reset/clean internal state.

void vtkSurfaceLICHelper::UpdateAll ( )

Force all stages to re-execute.

Necessary if the context or communicator changes.

void vtkSurfaceLICHelper::ViewportQuadTextureCoords ( GLfloat * tcoords )

inline

Convert viewport to texture coordinates.

Definition at line 103 of file vtkSurfaceLICHelper.h.

void vtkSurfaceLICHelper::ViewportQuadPoints	(	const vtkPixelExtent &	viewportExt,
		GLfloat *	quadpts
	)

inline

Convert a viewport to a bounding box and it's texture coordinates for a screen size texture.

Definition at line 114 of file vtkSurfaceLICHelper.h.

void vtkSurfaceLICHelper::ViewportQuadTextureCoords	(	const vtkPixelExtent &	viewExt,
		const vtkPixelExtent &	viewportExt,
		GLfloat *	tcoords
	)

Convert a viewport to a bounding box and it's texture coordinates for a screen size texture.

void vtkSurfaceLICHelper::ViewQuadPoints ( GLfloat * quadpts )

inline

Convert the entire view to a bounding box and it's texture coordinates for a screen size texture.

Definition at line 133 of file vtkSurfaceLICHelper.h.

void vtkSurfaceLICHelper::ViewQuadTextureCoords ( GLfloat * tcoords )

inline

Convert the entire view to a bounding box and it's texture coordinates for a screen size texture.

Definition at line 145 of file vtkSurfaceLICHelper.h.

void vtkSurfaceLICHelper::RenderQuad	(	const vtkPixelExtent &	viewExt,
		const vtkPixelExtent &	viewportExt,
		vtkOpenGLHelper *	cbo
	)

Render a quad (to trigger a shader to run)

int vtkSurfaceLICHelper::idx	(	int	row,
		int	col
	)

inline

Compute the index into the 4x4 OpenGL ordered matrix.

Definition at line 163 of file vtkSurfaceLICHelper.h.

bool vtkSurfaceLICHelper::VisibilityTest ( double ndcBBox[24] )

given a axes aligned bounding box in normalized device coordinates test for view frustum visibility.

if all points are outside one of the view frustum planes then this box is not visible. we might have false positive where more than one clip plane intersects the box.

bool vtkSurfaceLICHelper::ProjectBounds	(	double	PMV[16],
		int	viewsize[2],
		double	bounds[6],
		vtkPixelExtent &	screenExt
	)

Given world space bounds, compute bounding boxes in clip and normalized device coordinates and perform view frustum visiblity test.

return true if the bounds are visible. If so the passed in extent object is initialized with the corresponding screen space extents.

int vtkSurfaceLICHelper::ProjectBounds	(	vtkRenderer *	ren,
		vtkActor *	actor,
		vtkDataObject *	dobj,
		int	viewsize[2],
		vtkPixelExtent &	dataExt,
		std::deque< vtkPixelExtent > &	blockExts
	)

Compute screen space extents for each block in the input dataset and for the entire dataset.

Only visible blocks are used in the computations.

void vtkSurfaceLICHelper::GetPixelBounds	(	float *	rgba,
		int	ni,
		vtkPixelExtent &	ext
	)

Shrink an extent to tightly bound non-zero values.

void vtkSurfaceLICHelper::GetPixelBounds	(	float *	rgba,
		int	ni,
		std::deque< vtkPixelExtent > &	blockExts
	)

Shrink a set of extents to tightly bound non-zero values cull extent if it's empty.

static void vtkSurfaceLICHelper::StreamingFindMinMax	(	vtkFrameBufferObject2 *	fbo,
		std::deque< vtkPixelExtent > &	blockExts,
		float &	min,
		float &	max
	)

static

Member Data Documentation

vtkSmartPointer<vtkImageData> vtkSurfaceLICHelper::Noise

Definition at line 220 of file vtkSurfaceLICHelper.h.

vtkSmartPointer<vtkTextureObject> vtkSurfaceLICHelper::NoiseImage

Definition at line 221 of file vtkSurfaceLICHelper.h.

vtkSmartPointer<vtkTextureObject> vtkSurfaceLICHelper::DepthImage

Definition at line 222 of file vtkSurfaceLICHelper.h.

vtkSmartPointer<vtkTextureObject> vtkSurfaceLICHelper::GeometryImage

Definition at line 223 of file vtkSurfaceLICHelper.h.

vtkSmartPointer<vtkTextureObject> vtkSurfaceLICHelper::VectorImage

Definition at line 224 of file vtkSurfaceLICHelper.h.

vtkSmartPointer<vtkTextureObject> vtkSurfaceLICHelper::CompositeVectorImage

Definition at line 225 of file vtkSurfaceLICHelper.h.

vtkSmartPointer<vtkTextureObject> vtkSurfaceLICHelper::MaskVectorImage

Definition at line 226 of file vtkSurfaceLICHelper.h.

vtkSmartPointer<vtkTextureObject> vtkSurfaceLICHelper::CompositeMaskVectorImage

Definition at line 227 of file vtkSurfaceLICHelper.h.

vtkSmartPointer<vtkTextureObject> vtkSurfaceLICHelper::LICImage

Definition at line 228 of file vtkSurfaceLICHelper.h.

vtkSmartPointer<vtkTextureObject> vtkSurfaceLICHelper::RGBColorImage

Definition at line 229 of file vtkSurfaceLICHelper.h.

vtkSmartPointer<vtkTextureObject> vtkSurfaceLICHelper::HSLColorImage

Definition at line 230 of file vtkSurfaceLICHelper.h.

bool vtkSurfaceLICHelper::HasVectors

Definition at line 232 of file vtkSurfaceLICHelper.h.

std::deque<vtkPixelExtent> vtkSurfaceLICHelper::BlockExts

Definition at line 233 of file vtkSurfaceLICHelper.h.

vtkOpenGLHelper* vtkSurfaceLICHelper::ColorEnhancePass

Definition at line 235 of file vtkSurfaceLICHelper.h.

vtkOpenGLHelper* vtkSurfaceLICHelper::CopyPass

Definition at line 236 of file vtkSurfaceLICHelper.h.

vtkOpenGLHelper* vtkSurfaceLICHelper::ColorPass

Definition at line 237 of file vtkSurfaceLICHelper.h.

int vtkSurfaceLICHelper::Viewsize[2]

Definition at line 239 of file vtkSurfaceLICHelper.h.

vtkSmartPointer<vtkSurfaceLICComposite> vtkSurfaceLICHelper::Compositor

Definition at line 240 of file vtkSurfaceLICHelper.h.

vtkSmartPointer<vtkFrameBufferObject2> vtkSurfaceLICHelper::FBO

Definition at line 241 of file vtkSurfaceLICHelper.h.

vtkSmartPointer<vtkLineIntegralConvolution2D> vtkSurfaceLICHelper::LICer

Definition at line 243 of file vtkSurfaceLICHelper.h.

vtkPainterCommunicator* vtkSurfaceLICHelper::Communicator

Definition at line 244 of file vtkSurfaceLICHelper.h.

vtkPixelExtent vtkSurfaceLICHelper::DataSetExt

Definition at line 245 of file vtkSurfaceLICHelper.h.

vtkWeakPointer<vtkOpenGLRenderWindow> vtkSurfaceLICHelper::Context

Definition at line 247 of file vtkSurfaceLICHelper.h.

bool vtkSurfaceLICHelper::ContextNeedsUpdate

Definition at line 249 of file vtkSurfaceLICHelper.h.

bool vtkSurfaceLICHelper::CommunicatorNeedsUpdate

Definition at line 250 of file vtkSurfaceLICHelper.h.

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

/home/demarle/Builds/VTK/release/Utilities/Doxygen/dox/Rendering/LICOpenGL2/vtkSurfaceLICHelper.h

Public Member Functions

Static Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation