1 #ifndef BT_CLIP_POLYGON_H_INCLUDED     2 #define BT_CLIP_POLYGON_H_INCLUDED    33         return point.
dot(plane) - plane[3];
    40         vr = (1-blend_factor)*va + blend_factor*vb;
    54         if(_classif!=_prevclassif)
    56                 btScalar blendfactor = -dist0/(dist1-dist0);
    57                 bt_vec_blend(clipped[clipped_count],point0,point1,blendfactor);
    62                 clipped[clipped_count] = point1;
    75                                                 int polygon_point_count,
    78     int clipped_count = 0;
    85                 clipped[clipped_count] = polygon_points[0];
    90         for(
int i=1;i<polygon_point_count;i++)
    95                                                 polygon_points[i-1],polygon_points[i],
   108                                         polygon_points[polygon_point_count-1],polygon_points[0],
   114         return clipped_count;
   130     int clipped_count = 0;
   136                 clipped[clipped_count] = point0;
   175         return clipped_count;
   182 #endif // GIM_TRI_COLLISION_H_INCLUDED 
#define SIMD_FORCE_INLINE
btScalar dot(const btVector3 &v) const 
Return the dot product. 
int bt_plane_clip_triangle(const btVector4 &plane, const btVector3 &point0, const btVector3 &point1, const btVector3 &point2, btVector3 *clipped)
Clips a polygon by a plane. 
btScalar bt_distance_point_plane(const btVector4 &plane, const btVector3 &point)
void bt_vec_blend(btVector3 &vr, const btVector3 &va, const btVector3 &vb, btScalar blend_factor)
int bt_plane_clip_polygon(const btVector4 &plane, const btVector3 *polygon_points, int polygon_point_count, btVector3 *clipped)
Clips a polygon by a plane. 
btVector3 can be used to represent 3D points and vectors. 
void bt_plane_clip_polygon_collect(const btVector3 &point0, const btVector3 &point1, btScalar dist0, btScalar dist1, btVector3 *clipped, int &clipped_count)
This function calcs the distance from a 3D plane. 
float btScalar
The btScalar type abstracts floating point numbers, to easily switch between double and single floati...