SDFVoronoi Class Reference

Voronoi 3D distance field in a sphere. This implementation uses a distance to the nearest border of the voronoi cells. More...

#include <sdf.h>

Inheritance diagram for SDFVoronoi:

Public Member Functions
	SDFVoronoi (const QJsonValue &json)
virtual	~SDFVoronoi ()
	Destructor.
virtual double	Signed (const Vector &) const
	Compute the signed distance function.
QString	GetShader (PrimitiveManager &, std::list< QString > &, bool &) const
	Compute the GLSL code to render the node.
QString	GetGradientShader (PrimitiveManager &, std::list< QString > &, bool &) const
	Compute the GLSL code to compute the gradient the sdf.
virtual SDFNode *	Copy () const
	Deep copy.
QJsonValue	ToJson () const
	Conversion to JavaScript Object Notation.
Public Member Functions inherited from SDFSphere
	SDFSphere (const Vector &, double)
	Create a sphere scalar field.
	SDFSphere (double)
	Create a sphere scalar field.
	SDFSphere (const Sphere &)
	Create a sphere scalar field.
	SDFSphere (const QJsonValue &)
virtual	~SDFSphere ()
	Destructor.
virtual Vector	Gradient (const Vector &) const
	Compute the gradient of the field.
virtual int	Memory () const
	Return the size of a sub-tree.
Public Member Functions inherited from SDFEuclidean
	SDFEuclidean ()
	Create an Euclidean primitive.
virtual	~SDFEuclidean ()
	Destructor.
Public Member Functions inherited from SDFPrimitive
	SDFPrimitive ()
	Create a primitive.
virtual	~SDFPrimitive ()
	Destructor.
virtual void	ComputeCostSigned (const Vector &)
	Compute the number of reccursive calls to Signed().
virtual QString	GetCostShader (PrimitiveManager &, std::list< QString > &, bool &) const
	Compute the GLSL code to compute the cost of a call to sdf.
virtual QString	GetMaterialShader (PrimitiveManager &, std::list< QString > &, bool &) const
	Compute the GLSL code to compute the material of the object.
void	setShaderMaterial (ShaderMaterial *)
	Set the material of the primitive for the glsl code.
Public Member Functions inherited from SDFNode
	SDFNode ()
	Create a generic node.
virtual	~SDFNode ()
	Destructor.
virtual double	BID (const Vector &) const
	Compute a lower bound of the signed distance.
virtual bool	Inside (const Vector &) const
	Check if a point is inside or outside.
virtual Color	GetColor (const Vector &) const
	Computes the color.
virtual double	K () const
	Return the Lipschitz constant of the node.
virtual double	K (const Box &) const
	Return the local Lipschitz constant.
Box	GetBox () const
	Return the bounding box of the node.
virtual int	Nodes () const
	Compute the number of nodes in the sub-tree.
virtual void	SetShaderId (PrimitiveManager &)
	Set up an id for generating GLSL code.
void	ResetShaderId ()
	Reset the id for generating GLSL code.
virtual void	ComputeCostBID (const Vector &)
	Compute the number of reccursive calls to BID() and Signed().

Protected Attributes
double	fr
	Falloff radius.
Protected Attributes inherited from SDFNode
Box	box = Box::Infinity
	Box bounding the surface.
double	k = 1.0
	Lipschitz constant.
int	cost = 1
	Relative computation cost.
int	id = -1
	Id to optimize the glsl code generation (avoid repetition when looking twice the same node).

Additional Inherited Members
Static Public Member Functions inherited from SDFNode
static SDFNode *	FromJson (const QJsonValue &json)
	Conversion from JavaScript Object Notation.
static void	ResetReccursiveCalls ()
	Reset the reccursive call property of the tree.
static int	ReccursiveCalls ()
	Returns the number of reccursive calls to Value() and BID().
static void	addReccursiveCalls (int)
	Add a nulber to the nbreccursiveCalls.
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.
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.
static int	reccursiveCalls = 0
	Recursive calls to BID or Value.

Detailed Description

Voronoi 3D distance field in a sphere. This implementation uses a distance to the nearest border of the voronoi cells.

Constructor & Destructor Documentation

SDFVoronoi()

SDFVoronoi::SDFVoronoi ( const QJsonValue & json )

explicit

Member Function Documentation

GetGradientShader()

QString SDFVoronoi::GetGradientShader ( PrimitiveManager & , std::list< QString > & , bool & valid_glsl ) const

virtual

Compute the GLSL code to compute the gradient the sdf.

Author

HUEBRT-BRIERRE Pierre

Reimplemented from SDFSphere.

GetShader()

QString SDFVoronoi::GetShader ( PrimitiveManager & primitives, std::list< QString > & dependency, bool & valid_glsl ) const

virtual

Compute the GLSL code to render the node.

Author

Hubert-Brierre Pierre

Reimplemented from SDFSphere.

Signed()

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

virtual

Compute the signed distance function.

By default compute the signed distance to the bounding box of the primitive.

Parameters

p

Point.

Reimplemented from SDFSphere.

ToJson()

QJsonValue SDFVoronoi::ToJson ( ) const

virtual

Conversion to JavaScript Object Notation.

Reimplemented from SDFSphere.