Signed Distance Fields 1.0

Extrusion operator along a curve. More...

#include <sdf.h>

Inheritance diagram for SDFExtrusionQuadric:
SDFFromPlanar SDFPrimitive SDFNode

Public Member Functions

 SDFExtrusionQuadric (SDFNode2 *, const QuadricCurve &)
 Extrude a planar signed distance field along a curve.
 
virtual ~SDFExtrusionQuadric ()
 Destructor.
 
virtual double Signed (const Vector &) const
 Compute the signed distance.
 
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 render the node.
 
void ComputeCostSigned (const Vector &)
 Compute the number of reccursive calls to Signed().
 
virtual int Memory () const
 Return the size of a sub-tree.
 
virtual SDFNodeCopy () const
 Deep copy.
 
virtual int Nodes () const
 Compute the number of nodes in the sub-tree.
 
- Public Member Functions inherited from SDFFromPlanar
 SDFFromPlanar (SDFNode2 *)
 Constructor.
 
virtual ~SDFFromPlanar ()
 Destructor.
 
- Public Member Functions inherited from SDFPrimitive
 SDFPrimitive ()
 Create a primitive.
 
virtual ~SDFPrimitive ()
 Destructor.
 
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 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.
 
virtual double K (const Box &) const
 Return the local Lipschitz constant.
 
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

QuadricCurve eCurve
 Quadric extrusion curve.
 
- Protected Attributes inherited from SDFFromPlanar
SDFNode2node = 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 SDFNodeStalactite (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 SDFNodeSpherePieces ()
 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

Extrusion operator along a curve.

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Constructor & Destructor Documentation

◆ SDFExtrusionQuadric()

SDFExtrusionQuadric::SDFExtrusionQuadric ( SDFNode2 * n,
const QuadricCurve & c )
explicit

Extrude a planar signed distance field along a curve.

Parameters
nSub-tree.
cExtrusion curve.

Member Function Documentation

◆ ComputeCostSigned()

void SDFExtrusionQuadric::ComputeCostSigned ( const Vector & p)
virtual

Compute the number of reccursive calls to Signed().

Author
Hubert-Brierre Pierre

Reimplemented from SDFFromPlanar.

◆ GetCostShader()

QString SDFExtrusionQuadric::GetCostShader ( 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 SDFFromPlanar.

◆ GetShader()

QString SDFExtrusionQuadric::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 SDFExtrusionQuadric::Memory ( ) const
virtual

Return the size of a sub-tree.

Reimplemented from SDFNode.

◆ Nodes()

int SDFExtrusionQuadric::Nodes ( ) const
virtual

Compute the number of nodes in the sub-tree.

Reimplemented from SDFFromPlanar.

◆ Signed()

double SDFExtrusionQuadric::Signed ( const Vector & p) const
virtual

Compute the signed distance.

Parameters
pPoint.

Reimplemented from SDFPrimitive.