IceMaths Namespace Reference

Classes
class	AABB
class	Axes
class	HPoint
class	IndexedTriangle
class	Matrix3x3
class	Matrix4x4
class	OBB
class	Plane
class	Point
class	Ray
class	Sphere
Typedefs
typedef int	CubeIndex
Enumerations
enum	AABBType { AABB_RENDER = 0, AABB_UPDATE = 1, AABB_FORCE_DWORD = 0x7fffffff }
enum	AxisOrder {   AXES_XYZ = (_X)|(_Y<<2)|(_Z<<4), AXES_XZY = (_X)|(_Z<<2)|(_Y<<4), AXES_YXZ = (_Y)|(_X<<2)|(_Z<<4), AXES_YZX = (_Y)|(_Z<<2)|(_X<<4),   AXES_ZXY = (_Z)|(_X<<2)|(_Y<<4), AXES_ZYX = (_Z)|(_Y<<2)|(_X<<4), AXES_FORCE_DWORD = 0x7fffffff }
enum	BSphereMethod { BS_NONE, BS_GEMS, BS_MINIBALL, BS_FORCE_DWORD = 0x7fffffff }
enum	PointComponent {   _X = 0, _Y = 1, _Z = 2, _W = 3,   _FORCE_DWORD = 0x7fffffff }
Functions
inline_ void	ComputeAABB (AABB &aabb, const Point *list, udword nb_pts)
inline_ void	ComputeLocalDirection (Point &local_dir, const Point &world_dir, const Matrix4x4 &world)
inline_ void	ComputeLocalPoint (Point &local_pt, const Point &world_pt, const Matrix4x4 &world)
inline_ void	ComputeLocalRay (Ray &local_ray, const Ray &world_ray, const Matrix4x4 &world)
inline_ void	ComputeMinMax (const Point &p, Point &min, Point &max)
inline_ void	ComputeReflexionVector (Point &reflected, const Point &incoming_dir, const Point &outward_normal)
inline_ void	ComputeReflexionVector (Point &reflected, const Point &source, const Point &impact, const Point &normal)
inline_ void	DecomposeVector (Point &normal_compo, Point &tangent_compo, const Point &outward_dir, const Point &outward_normal)
ICEMATHS_API void	InvertPRMatrix (Matrix4x4 &dest, const Matrix4x4 &src)
FUNCTION ICEMATHS_API void	Normalize1 (Point &a)
FUNCTION ICEMATHS_API void	Normalize2 (Point &a)
inline_ void	TransformPlane (Plane &transformed, const Plane &plane, const Matrix4x4 &transform)
inline_ void	TransformPlane (Plane &plane, const Matrix4x4 &transform)
inline_ void	TransformPoint3x3 (Point &dest, const Point &source, const Matrix4x4 &rot)
	Quickly rotates a vector, using the 3x3 part of a 4x4 matrix.
inline_ void	TransformPoint4x3 (Point &dest, const Point &source, const Matrix4x4 &rot)
	Quickly rotates & translates a vector, using the 4x3 part of a 4x4 matrix.
Variables
const float	EPSILON2 = 1.0e-20f

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Detailed Description

Author:

Shin'ichiro Nakaoka

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Typedef Documentation

typedef int IceMaths::CubeIndex

Definition at line 20 of file OPC_IceHook.h.

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Enumeration Type Documentation

enum IceMaths::AABBType

Enumerator:

AABB_RENDER	AABB used for rendering. Not visible == not rendered.
AABB_UPDATE	AABB used for dynamic updates. Not visible == not updated.
AABB_FORCE_DWORD

Definition at line 40 of file OPC_IceHook.h.

enum IceMaths::AxisOrder

Enumerator:

AXES_XYZ
AXES_XZY
AXES_YXZ
AXES_YZX
AXES_ZXY
AXES_ZYX
AXES_FORCE_DWORD

Definition at line 26 of file OPC_IceHook.h.

enum IceMaths::BSphereMethod

Enumerator:

BS_NONE
BS_GEMS
BS_MINIBALL
BS_FORCE_DWORD

Definition at line 16 of file OPC_IceHook.h.

enum IceMaths::PointComponent

Enumerator:

_X
_Y
_Z
_W
_FORCE_DWORD

Definition at line 16 of file OPC_IceHook.h.

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Function Documentation

inline_ void IceMaths::ComputeAABB	(	AABB &	aabb,
		const Point *	list,
		udword	nb_pts
	)

Definition at line 491 of file OPC_IceHook.h.

inline_ void IceMaths::ComputeLocalDirection	(	Point &	local_dir,
		const Point &	world_dir,
		const Matrix4x4 &	world
	)

Transforms a direction vector from world space to local space

Parameters:

local_dir	[out] direction vector in local space
world_dir	[in] direction vector in world space
world	[in] world transform

Definition at line 60 of file OPC_IceHook.h.

inline_ void IceMaths::ComputeLocalPoint	(	Point &	local_pt,
		const Point &	world_pt,
		const Matrix4x4 &	world
	)

Transforms a position vector from world space to local space

Parameters:

local_pt	[out] position vector in local space
world_pt	[in] position vector in world space
world	[in] world transform

Definition at line 76 of file OPC_IceHook.h.

inline_ void IceMaths::ComputeLocalRay	(	Ray &	local_ray,
		const Ray &	world_ray,
		const Matrix4x4 &	world
	)

Transforms a ray from world space to local space

Parameters:

local_ray	[out] ray in local space
world_ray	[in] ray in world space
world	[in] world transform

Definition at line 92 of file OPC_IceHook.h.

inline_ void IceMaths::ComputeMinMax	(	const Point &	p,
		Point &	min,
		Point &	max
	)

Definition at line 479 of file OPC_IceHook.h.

inline_ void IceMaths::ComputeReflexionVector	(	Point &	reflected,
		const Point &	incoming_dir,
		const Point &	outward_normal
	)

Definition at line 35 of file OPC_IceHook.h.

inline_ void IceMaths::ComputeReflexionVector	(	Point &	reflected,
		const Point &	source,
		const Point &	impact,
		const Point &	normal
	)

Definition at line 40 of file OPC_IceHook.h.

inline_ void IceMaths::DecomposeVector	(	Point &	normal_compo,
		Point &	tangent_compo,
		const Point &	outward_dir,
		const Point &	outward_normal
	)

Definition at line 46 of file OPC_IceHook.h.

ICEMATHS_API void IceMaths::InvertPRMatrix	(	Matrix4x4 &	dest,
		const Matrix4x4 &	src
	)

Definition at line 54 of file IceMatrix4x4.cpp.

FUNCTION ICEMATHS_API void IceMaths::Normalize1

(

Point &

a

)

FUNCTION ICEMATHS_API void IceMaths::Normalize2

(

Point &

a

)

inline_ void IceMaths::TransformPlane	(	Plane &	transformed,
		const Plane &	plane,
		const Matrix4x4 &	transform
	)

Transforms a plane by a 4x4 matrix. Same as Plane * Matrix4x4 operator, but faster.

Parameters:

transformed	[out] transformed plane
plane	[in] source plane
transform	[in] transform matrix

Warning:

the plane normal must be unit-length

Definition at line 88 of file OPC_IceHook.h.

inline_ void IceMaths::TransformPlane	(	Plane &	plane,
		const Matrix4x4 &	transform
	)

Transforms a plane by a 4x4 matrix. Same as Plane * Matrix4x4 operator, but faster.

Parameters:

plane	[in/out] source plane (transformed on return)
transform	[in] transform matrix

Warning:

the plane normal must be unit-length

Definition at line 105 of file OPC_IceHook.h.

inline_ void IceMaths::TransformPoint3x3	(	Point &	dest,
		const Point &	source,
		const Matrix4x4 &	rot
	)

Quickly rotates a vector, using the 3x3 part of a 4x4 matrix.

Definition at line 446 of file OPC_IceHook.h.

inline_ void IceMaths::TransformPoint4x3	(	Point &	dest,
		const Point &	source,
		const Matrix4x4 &	rot
	)

Quickly rotates & translates a vector, using the 4x3 part of a 4x4 matrix.

Definition at line 438 of file OPC_IceHook.h.

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Variable Documentation

const float IceMaths::EPSILON2 = 1.0e-20f

Definition at line 24 of file OPC_IceHook.h.