SDFConvexSmooth Class Reference

Smooth convex primitives. More...

#include <sdf.h>

Inheritance diagram for SDFConvexSmooth:

Public Member Functions
	SDFConvexSmooth (const Box &, double=0.25)
	Create a convex primitive from a box. More...
	SDFConvexSmooth (const Dodecahedron &, double=0.25)
	Create a convex primitive from a dodecahedron. More...
	SDFConvexSmooth (const Tetrahedra &, double=0.25)
	Create a convex primitive from a tetrahedra. More...
	SDFConvexSmooth (const Octahedron &, double=0.25)
	Create a convex primitive from an octahedron. More...
	SDFConvexSmooth (const QVector< Plane > &, double=0.25)
	Create a convex primitive from a set of planes. More...
	SDFConvexSmooth (const QVector< Plane > &, const Box &, double=0.25)
	Create a smooth convex primitive from a set of planes, and a bounding box already computed. More...
virtual	~SDFConvexSmooth ()
	Destructor.
double	Signed (const Vector &) const
	Compute the signed distance function. More...
int	Memory () const
	Return the size of a sub-tree. More...
virtual SDFNode *	Copy () const
	Deep copy.
Public Member Functions inherited from SDFConvex
	SDFConvex (const Box &)
	Create a convex primitive from a box. More...
	SDFConvex (const Dodecahedron &)
	Create a convex from a dodecahedron. More...
	SDFConvex (const Tetrahedra &)
	Create a convex from a tetrahedron. More...
	SDFConvex (const Octahedron &)
	Create a convex from an octahedron. More...
	SDFConvex (const Icosahedron &)
	Create a convex from an icosahedron. More...
	SDFConvex (const Icosidodecahedron &)
	Create a convex primitive from an icosidodecahedron. More...
	SDFConvex (const QVector< Plane > &)
	Create a convex primitive from a set of planes. More...
	SDFConvex (const QVector< Plane > &, const Box &)
	Create a convex primitive from a set of planes, and a bounding box already computed. More...
virtual	~SDFConvex ()
	Destructor.
Public Member Functions inherited from SDFPrimitive
	SDFPrimitive ()
	Create a primitive.
virtual	~SDFPrimitive ()
	Destructor.
Public Member Functions inherited from SDFNode
	SDFNode ()
	Create a generic node.
virtual	~SDFNode ()
	Destructor.
virtual Vector	Gradient (const Vector &) const
	Compute the gradient of the field. More...
virtual bool	Inside (const Vector &) const
	Check if a point is inside or outside. More...
virtual double	K () const
	Return the Lipschitz constant of the node. More...
virtual double	K (const Box &) const
	Return the local Lipschitz constant. More...
Box	GetBox () const
	Return the bounding box of the node.
virtual int	Nodes () const
	Compute the number of nodes in the sub-tree.

Protected Attributes
double	t
	Smoothing radius.
Protected Attributes inherited from SDFConvex
QVector< Plane >	planes
	Set of intersecting planes.
Protected Attributes inherited from SDFNode
Box	box
	Box bounding the surface.
double	k
	Lipschitz constant.

Additional Inherited Members
Static Public Member Functions inherited from SDFNode
static double	SmoothingPolynomialCubic (double d1, double d2, double sr)
	Generalized C2 polynomial smoothing function between two distances. More...
static double	SmoothingPolynomial (double d1, double d2, double sr)
	Generalized C1 polynomial smoothing function between two distances. More...
static double	SmoothingQuilez (double d1, double d2, double sr)
	Generalized polynomial smoothing function between two distances. More...
static double	SmoothingExp (double d1, double d2, double sr)
	Generalized exponential smoothing function between two distances. More...
static SDFNode *	Stalactite (const Vector &p, const double &h, const double &r, bool noise=true, Random &random=Random::R239, const double &largeur=0.25, const double &espacement=0.61)
	Procedural parameterized stalactite. More...
static SDFNode *	SpherePieces ()
	Sphere carved, placed on a cylinder. Nice scene for testing sharp features reconstruction.
Static Protected Attributes inherited from SDFNode
static constexpr double	Epsilon = 0.01
	Small constant used for bounding volumes.

Detailed Description

Smooth convex primitives.

The signed distance function is defined as the smooth maximum signed distance to planes.

Constructor & Destructor Documentation

SDFConvexSmooth() [1/6]

SDFConvexSmooth::SDFConvexSmooth ( const Box &  b, double  t = 0.25  )

explicit

Create a convex primitive from a box.

Parameters

b	The box.
t	Smoothing distance.

SDFConvexSmooth() [2/6]

SDFConvexSmooth::SDFConvexSmooth ( const Dodecahedron &  dodeca, double  t = 0.25  )

explicit

Create a convex primitive from a dodecahedron.

Parameters

dodeca	Dodecahedron.
t	Smoothing distance.

SDFConvexSmooth() [3/6]

SDFConvexSmooth::SDFConvexSmooth ( const Tetrahedra &  tetra, double  t = 0.25  )

explicit

Create a convex primitive from a tetrahedra.

Parameters

tetra	Tetrahedron.
t	Smoothing distance.

SDFConvexSmooth() [4/6]

SDFConvexSmooth::SDFConvexSmooth ( const Octahedron &  octa, double  t = 0.25  )

explicit

Create a convex primitive from an octahedron.

Parameters

octa	Octahedron.
t	Smoothing distance.

SDFConvexSmooth() [5/6]

SDFConvexSmooth::SDFConvexSmooth ( const QVector< Plane > &  planes, double  t = 0.25  )

explicit

Create a convex primitive from a set of planes.

Parameters

planes	Set of planes.
t	Smoothing distance.

SDFConvexSmooth() [6/6]

SDFConvexSmooth::SDFConvexSmooth ( const QVector< Plane > &  planes, const Box &  bbox, double  t = 0.25  )

explicit

Create a smooth convex primitive from a set of planes, and a bounding box already computed.

This constructor is used to avoid the O(n^4) computation of the bounding box in the constructor above.

Parameters

planes	Set of planes.
bbox	Bounding box.
t	Smoothing distance.

Member Function Documentation

Memory()

int SDFConvexSmooth::Memory ( ) const

virtual

Return the size of a sub-tree.

Reimplemented from SDFConvex.

Signed()

double SDFConvexSmooth::Signed ( const Vector &  p ) const

virtual

Compute the signed distance function.

Parameters

p

Point.

Reimplemented from SDFConvex.