xiiSimdBSphere Class Reference

Public Member Functions
	XII_DECLARE_POD_TYPE ()
	xiiSimdBSphere ()
	Default constructor does not initialize any data.
	xiiSimdBSphere (const xiiSimdVec4f &vCenter, const xiiSimdFloat &fRadius)
	Creates a sphere with the given radius around the given center.
bool	IsValid () const
	Returns whether the sphere has valid values.
bool	IsNaN () const
	Returns whether any value is NaN.
xiiSimdVec4f	GetCenter () const
	Returns the center.
xiiSimdFloat	GetRadius () const
	Returns the radius.
void	ExpandToInclude (const xiiSimdVec4f &vPoint)
	Increases the sphere's radius to include this point.
void	ExpandToInclude (const xiiSimdVec4f *pPoints, xiiUInt32 uiNumPoints, xiiUInt32 uiStride=sizeof(xiiSimdVec4f))
	Increases the sphere's radius to include all given points. Does NOT change its position, thus the resulting sphere might be not a very tight fit. More efficient than calling this for every point individually.
void	ExpandToInclude (const xiiSimdBSphere &rhs)
	Increases this sphere's radius, such that it encloses the other sphere.
void	Transform (const xiiSimdTransform &t)
	Transforms the sphere in its local space.
void	Transform (const xiiSimdMat4f &mMat)
	Transforms the sphere in its local space.
xiiSimdFloat	GetDistanceTo (const xiiSimdVec4f &vPoint) const
	Computes the distance of the point to the sphere's surface. Returns negative values for points inside the sphere.
xiiSimdFloat	GetDistanceTo (const xiiSimdBSphere &rhs) const
	Returns the distance between the two spheres. Zero for spheres that are exactly touching each other, negative values for overlapping spheres.
bool	Contains (const xiiSimdVec4f &vPoint) const
	Returns true if the given point is inside the sphere.
bool	Contains (const xiiSimdBSphere &rhs) const
	Returns whether the other sphere is completely inside this sphere.
bool	Overlaps (const xiiSimdBSphere &rhs) const
	Checks whether the two objects overlap.
xiiSimdVec4f	GetClampedPoint (const xiiSimdVec4f &vPoint)
	Clamps the given position to the volume of the sphere. The resulting point will always be inside the sphere, but have the closest distance to the original point.
bool	operator== (const xiiSimdBSphere &rhs) const
bool	operator!= (const xiiSimdBSphere &rhs) const

Static Public Member Functions
static xiiSimdBSphere	MakeZero ()
	Creates a sphere at the origin with radius zero.
static xiiSimdBSphere	MakeInvalid (const xiiSimdVec4f &vCenter=xiiSimdVec4f::MakeZero())
	Creates an 'invalid' sphere, with its center at the given position and a negative radius.
static xiiSimdBSphere	MakeFromCenterAndRadius (const xiiSimdVec4f &vCenter, const xiiSimdFloat &fRadius)
	Creates a sphere with the provided center and radius.
static xiiSimdBSphere	MakeFromPoints (const xiiSimdVec4f *pPoints, xiiUInt32 uiNumPoints, xiiUInt32 uiStride=sizeof(xiiSimdVec4f))
	Creates a bounding sphere around the provided points.

Public Attributes
xiiSimdVec4f	m_CenterAndRadius

Member Function Documentation

MakeFromPoints()

xiiSimdBSphere xiiSimdBSphere::MakeFromPoints ( const xiiSimdVec4f * pPoints, xiiUInt32 uiNumPoints, xiiUInt32 uiStride = sizeof(xiiSimdVec4f) )

inlinestaticnodiscard

Creates a bounding sphere around the provided points.

The center of the sphere will be at the 'center of mass' of all the points, and the radius will be the distance to the farthest point from there.

MakeInvalid()

XII_ALWAYS_INLINE xiiSimdBSphere xiiSimdBSphere::MakeInvalid ( const xiiSimdVec4f & vCenter = xiiSimdVec4f::MakeZero() )

staticnodiscard

Creates an 'invalid' sphere, with its center at the given position and a negative radius.

Such a sphere can be made 'valid' through ExpandToInclude(), but be aware that the originally provided center position will always be part of the sphere.

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The documentation for this class was generated from the following files:

• /home/runner/work/XII/XII/Source/Engine/Foundation/SimdMath/SimdBSphere.h
• /home/runner/work/XII/XII/Source/Engine/Foundation/SimdMath/Implementation/SimdBSphere_inl.h