SDFBinary Class Reference

Binary nodes. More...

#include <sdf.h>

Inheritance diagram for SDFBinary:

Public Member Functions
	SDFBinary (SDFNode *, SDFNode *)
	Create a binary node.
virtual	~SDFBinary ()
	Recursively destroy the sub-trees.
virtual double	K (const Box &) const
	Return the local Lipschitz constant.
virtual void	SetShaderId (PrimitiveManager &)
	Set up an id for generating GLSL code.
virtual void	ResetShaderId ()
	Reset the id for generating GLSL code.
virtual QString	GetCostShader (PrimitiveManager &, std::list< QString > &, bool &) const
	Compute the GLSL code to compute the cost of a call to sdf.
virtual void	ComputeCostSigned (const Vector &)
	Compute the number of reccursive calls to Signed().
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	Signed (const Vector &) const
	Compute the signed distance.
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 int	Memory () const
	Return the size of a sub-tree.
virtual double	K () const
	Return the Lipschitz constant of the node.
Box	GetBox () const
	Return the bounding box of the node.
void	ResetShaderId ()
	Reset the id for generating GLSL code.
virtual QString	GetShader (PrimitiveManager &, std::list< QString > &, bool &) const
	Compute the GLSL code to render the node.
virtual QString	GetGradientShader (PrimitiveManager &, std::list< QString > &, bool &) const
	Compute the GLSL code to compute the gradient the sdf.
virtual QString	GetMaterialShader (PrimitiveManager &, std::list< QString > &, bool &) const
	Compute the GLSL code to compute the material the sdf at a given point 'p' with a given normal 'n'.
virtual QJsonValue	ToJson () const
	Conversion to JavaScript Object Notation.
virtual void	ComputeCostBID (const Vector &)
	Compute the number of reccursive calls to BID() and Signed().

Protected Attributes
SDFNode *	e [2] = { nullptr,nullptr }
	Sub-trees.
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

Binary nodes.

Constructor & Destructor Documentation

SDFBinary()

SDFBinary::SDFBinary ( SDFNode * a, SDFNode * b )

explicit

Create a binary node.

Parameters

a,b	Sub-trees.

Member Function Documentation

ComputeCostSigned()

void SDFBinary::ComputeCostSigned ( const Vector & p )

virtual

Compute the number of reccursive calls to Signed().

Author

Hubert-Brierre Pierre

Reimplemented from SDFNode.

Reimplemented in SDFBEIS, and SDFInterpolation.

GetCostShader()

QString SDFBinary::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 SDFNode.

Reimplemented in SDFBEIS, SDFDifferenceShell, SDFInterpolation, SDFIntersectionShell, SDFLod, SDFNormalMap, SDFSmoothDifference, SDFSmoothUnion, and SDFUnion.

K()

double SDFBinary::K ( const Box & b ) const

virtual

Return the local Lipschitz constant.

By default, binary nodes return the maximum of the Lipschitz constant of their sub-trees.

Parameters

b

Box

Reimplemented from SDFNode.

Nodes()

int SDFBinary::Nodes ( ) const

virtual

Compute the number of nodes in the sub-tree.

Reimplemented from SDFNode.

ResetShaderId()

void SDFBinary::ResetShaderId ( )

virtual

Reset the id for generating GLSL code.

Author

Hubert-Brierre Pierre

SetShaderId()

void SDFBinary::SetShaderId ( PrimitiveManager & primitives )

virtual

Set up an id for generating GLSL code.

Author

Hubert-Brierre Pierre

Reimplemented from SDFNode.