SDFClone Class Reference

Cloning operator. More...

#include <sdf.h>

Inheritance diagram for SDFClone:

Public Member Functions
	SDFClone (SDFNode *, const Frame &)
	Create a virtual clone ofthe sub-tree, and locate it at the argument frame.
virtual	~SDFClone ()
	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	GetCostShader (PrimitiveManager *, std::list< QString > *, bool *) const
	Compute the GLSL code to compute the cost of a call to sdf.
virtual int	Memory () const
	Return the size of a sub-tree.
virtual SDFNode *	Copy () const
	Deep copy.
Public Member Functions inherited from SDFUnary
	SDFUnary (SDFNode *)
	Create an unary node.
virtual	~SDFUnary ()
	Destroy the sub-tree.
virtual double	K (const Box &) const
	Return the local Lipschitz constant.
virtual QString	GetMaterialShader (PrimitiveManager *, std::list< QString > *, bool *) const
	Compute the GLSL code to compute the material of the sdf.
virtual void	ComputeCostSigned (const Vector &)
	Compute the number of reccursive calls to Signed().
virtual int	Nodes () const
	Compute the number of nodes in the sub-tree.
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 Vector	Gradient (const Vector &) const
	Compute the gradient of the field.
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.
Box	GetBox () const
	Return the bounding box of the node.
virtual QString	GetGradientShader (PrimitiveManager *, std::list< QString > *, bool *=nullptr) const
	Compute the GLSL code to compute the gradient the sdf.
virtual void	ComputeCostBID (const Vector &)
	Compute the number of reccursive calls to BID() and Signed().

Protected Attributes
Frame	frame
	Frame.
Protected Attributes inherited from SDFUnary
SDFNode *	e = nullptr
	Sub-tree.
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.

Additional Inherited Members
Static Public Member Functions inherited from SDFNode
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

Cloning operator.

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Constructor & Destructor Documentation

SDFClone()

SDFClone::SDFClone ( SDFNode * n, const Frame & f )

explicit

Create a virtual clone ofthe sub-tree, and locate it at the argument frame.

This is equivalent to copying the sub-tree, adding a frame node on top of the copy and creating the union of the two sub-trees, but more memory efficient.

SDFNode* n; // Sub-tree
Frame frame(Matrix::Rotation(Vector(1.0 / Math::Sqrt2, 1.0 / Math::Sqrt2, 0.0)), Vector(0.0, 0.0, 4.0)); // Transformation
SDFNode* c = n->Copy(); // Copy sub-tree
  SDFNode* f = new SDFFrame(c, frame); // Transform copy
  SDFNode* u = new SDFUnion(n,f); // Union

Parameters

n	Sub-tree.
f	Frame.

Member Function Documentation

GetCostShader()

QString SDFClone::GetCostShader ( PrimitiveManager * primitives, std::list< QString > * dependency, bool * valid_glsl ) const

virtual

Compute the GLSL code to compute the cost of a call to sdf.

Author

Hubert-Brierre Pierre

Reimplemented from SDFUnary.

GetShader()

QString SDFClone::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 SDFNode.

Memory()

int SDFClone::Memory ( ) const

virtual

Return the size of a sub-tree.

Reimplemented from SDFNode.

Signed()

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

virtual

Compute the signed distance function.

This operator preserves the Euclidean distance (if argument sub-trees provide a Euclidean distance).

Parameters

p

Point.

Reimplemented from SDFUnary.