Kinwailo

struct Matrix4x4
{
 // The elements of the 4x4 matrix are stored in
 // column-major order (see "OpenGL Programming Guide",
 // 3rd edition, pp 106, glLoadMatrix).
 float _11, _21, _31, _41;
 float _12, _22, _32, _42;
 float _13, _23, _33, _43;
 float _14, _24, _34, _44;
};

Kinwailo

// Returns: INTERSECT : 0 
//          INSIDE : 1 
//          OUTSIDE : 2 
int FrustumAABBIntersect(Plane *planes, Vector &mins, Vector &maxs) { 
   int    ret = INSIDE; 
   Vector vmin, vmax; 

   for(int i = 0; i < 6; ++i) { 
      // X axis 
      if(planes[i].normal.x > 0) {