cxDepthPeeling.cpp File Reference

#include "cxDepthPeeling.h"
#include "cxLogger.h"

Go to the source code of this file.

Functions
vtkSmartPointer< vtkAppendPolyData >	GenerateOverlappingBunchOfSpheres (int theta, int phi)
bool	SetupEnvironmentForDepthPeeling (vtkSmartPointer< vtkRenderWindow > renderWindow, vtkSmartPointer< vtkRenderer > renderer, int maxNoOfPeels, double occlusionRatio)
bool	TurnOffDepthPeeling (vtkSmartPointer< vtkRenderWindow > renderWindow, vtkSmartPointer< vtkRenderer > renderer)
	Turn off depth peeling. More...
bool	IsDepthPeelingSupported (vtkSmartPointer< vtkRenderWindow > renderWindow, vtkSmartPointer< vtkRenderer > renderer, bool doItOffScreen)

Function Documentation

vtkSmartPointer<vtkAppendPolyData> GenerateOverlappingBunchOfSpheres	(	int	theta,
		int	phi
	)

Generate a bunch of overlapping spheres within one poly data set: one big sphere evenly surrounded by four small spheres that intersect the centered sphere.

Parameters

theta	sphere sampling resolution (THETA)
phi	sphere sampling resolution (PHI)

Returns

the set of spheres within one logical poly data set

Definition at line 22 of file cxDepthPeeling.cpp.

bool IsDepthPeelingSupported	(	vtkSmartPointer< vtkRenderWindow >	renderWindow,
		vtkSmartPointer< vtkRenderer >	renderer,
		bool	doItOffScreen
	)

Find out whether this box supports depth peeling. Depth peeling requires a variety of openGL extensions and appropriate drivers.

Parameters

renderWindow	a valid openGL-supporting render window
renderer	a valid renderer instance
doItOffScreen	do the test off screen which means that nothing is rendered to screen (this requires the box to support off screen rendering)

Returns

TRUE if depth peeling is supported, FALSE otherwise (which means that another strategy must be used for correct rendering of translucent geometry, e.g. CPU-based depth sorting)

Definition at line 134 of file cxDepthPeeling.cpp.

bool SetupEnvironmentForDepthPeeling	(	vtkSmartPointer< vtkRenderWindow >	renderWindow,
		vtkSmartPointer< vtkRenderer >	renderer,
		int	maxNoOfPeels,
		double	occlusionRatio
	)

Setup the rendering environment for depth peeling (general depth peeling support is requested).

See also

IsDepthPeelingSupported()

Parameters

renderWindow	a valid openGL-supporting render window
renderer	a valid renderer instance
maxNoOfPeels	maximum number of depth peels (multi-pass rendering)
occlusionRatio	the occlusion ration (0.0 means a perfect image, >0.0 means a non-perfect image which in general results in faster rendering)

Returns

TRUE if depth peeling could be set up

Definition at line 67 of file cxDepthPeeling.cpp.

bool TurnOffDepthPeeling	(	vtkSmartPointer< vtkRenderWindow >	renderWindow,
		vtkSmartPointer< vtkRenderer >	renderer
	)

Turn off depth peeling.

Definition at line 102 of file cxDepthPeeling.cpp.