nurbs.cpp File Reference

#include "pbrt.h"
#include "shape.h"
#include "geometry.h"
#include "dynload.h"
#include "texture.h"

Go to the source code of this file.

Classes
class	NURBS
struct	Homogeneous3
Defines
#define	VN(u, v)   ((v)*diceu+(u))
Functions
static int	KnotOffset (const float *knot, int order, int np, float t)
static Homogeneous3	NURBSEvaluate (int order, const float *knot, const Homogeneous3 *cp, int np, int cpStride, float t, Vector *deriv=NULL)
static Point	NURBSEvaluateSurface (int uOrder, const float *uKnot, int ucp, float u, int vOrder, const float *vKnot, int vcp, float v, const Homogeneous3 *cp, Vector *dPdu, Vector *dPdv)
DLLEXPORT Shape *	CreateShape (const Transform &o2w, bool reverseOrientation, const ParamSet &params)

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Define Documentation

#define VN	(	u,
		v		)	((v)*diceu+(u))

Referenced by NURBS::Refine().

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Function Documentation

DLLEXPORT Shape* CreateShape	(	const Transform &	o2w,
		bool	reverseOrientation,
		const ParamSet &	params
	)

Definition at line 299 of file nurbs.cpp.

References Assert, ParamSet::FindFloat(), ParamSet::FindOneFloat(), ParamSet::FindOneInt(), ParamSet::FindPoint(), NURBS::isHomogeneous, NURBS::nu, NURBS::NURBS(), NURBS::nv, NURBS::P, NURBS::uorder, and NURBS::vorder.

static int KnotOffset	(	const float *	knot,
		int	order,
		int	np,
		float	t
	)			[static]

Definition at line 52 of file nurbs.cpp.

Referenced by NURBSEvaluate(), and NURBSEvaluateSurface().

static Homogeneous3 NURBSEvaluate	(	int	order,
		const float *	knot,
		const Homogeneous3 *	cp,
		int	np,
		int	cpStride,
		float	t,
		Vector *	deriv = NULL
	)			[static]

Definition at line 74 of file nurbs.cpp.

References KnotOffset(), Homogeneous3::w, Homogeneous3::x, Homogeneous3::y, and Homogeneous3::z.

Referenced by NURBSEvaluateSurface().

static Point NURBSEvaluateSurface	(	int	uOrder,
		const float *	uKnot,
		int	ucp,
		float	u,
		int	vOrder,
		const float *	vKnot,
		int	vcp,
		float	v,
		const Homogeneous3 *	cp,
		Vector *	dPdu,
		Vector *	dPdv
	)			[static]

Definition at line 125 of file nurbs.cpp.

References KnotOffset(), NURBSEvaluate(), Homogeneous3::w, Homogeneous3::x, Homogeneous3::y, and Homogeneous3::z.

Referenced by NURBS::Refine().