maths
Class CBound

class CBound

m_Data

private CVector3D m_Data[ 2 ];

CBound

public CBound( const CVector3D& min, const CVector3D& max );

CBound

public CBound();

GetCentre

public void GetCentre( CVector3D& centre ) const;

GetVolume

public float GetVolume() const;

IntersectFrustumConservative

public void IntersectFrustumConservative( const CFrustum& frustum );

Render the bounding box

IsEmpty

public bool IsEmpty();

Transform: transform this bound by given matrix; return transformed bound in 'result' parameter - slightly modified version of code in Graphic Gems (can't remember which one it was, though)

operator+=

public CBound& operator+=( const CVector3D& pt );

RayIntersect: intersect ray with this bound; return true if ray hits (and store entry and exit times), or false otherwise note: incoming ray direction must be normalised

operator+=

public CBound& operator+=( const CBound& b );

operator+=: extend this bound to include given point

operator[]

public const CVector3D& operator[]( int index ) const;

RayIntersect

public bool RayIntersect( const CVector3D& origin, const CVector3D& dir, float& tmin, float& tmax ) const;

SetEmpty: initialise this bound as empty

Render

public void Render();

Render: Render the surfaces of the bound object as polygons.

SetEmpty

public void SetEmpty();

IsEmpty: tests whether this bound is empty

Transform

public void Transform( const CMatrix3D& m, CBound& result ) const;

Intersect with the given frustum in a conservative manner