孤独de守候的专栏

Ray：// data memberVector3f Origin;Vector3f Direction;Sphere：// data memberVector3f Origin;float Radius;测试Ray Sphere是否相交： 球心为O , 光线的起点为A，以点A向球发射切线，设点B为切点 则当光线在图示的椎体中时，光线与球产生相交 在椎体之外，则无相交 并且当

Ray：// data memberVector3f Origin;Vector3f Direction;设Ray的起点OriginOrigin为O(x0,y0,z0)O(x_0 , y_0 , z_0)，DirectionDirection为D(dx,dy,dz)D(dx , dy , dz) ⎧⎩⎨x=x0+t∗dxy=y0+t∗dyz=z0+t∗dz \begin{equat

Box采用OBB定义：enum AxisDefine{ X , Y , Z};// data member Vector3f Center;Vector3f Axis[3];float extent[3]; // 边长的一半Ray采用参数式Point=Origin+t∗Direction,0≤t≤∞Point = Origin + t * Directio

Ray与Box的定义：class Ray{ // data member Vector3f Origin; Vector3f Direction;}class Box{ // data member Vector3f Center; float Extents[3]; Vector3f Axis[3];}Box可以看成由三组平面所构成的平