Triangle/Ray Intersection Tests

Collaboration diagram for Triangle/Ray Intersection Tests:

Functions
int	bg_isect_tri_line (point_t *isect, const point_t orig, const vect_t dir, const point_t vert0, const point_t vert1, const point_t vert2)
	Triangle ray and line intersection tests.
int	bg_isect_tri_ray (const point_t orig, const point_t dir, const point_t vert0, const point_t vert1, const point_t vert2, point_t *isect)
	Test whether a forward ray intersects a triangle.

Detailed Description

Function Documentation

bg_isect_tri_line()

int bg_isect_tri_line ( point_t *  isect, const point_t  orig, const vect_t  dir, const point_t  vert0, const point_t  vert1, const point_t  vert2  )

extern

Triangle ray and line intersection tests.

Test whether an infinite line intersects a triangle.

The line is orig + t * dir for all real t. The direction must be nonzero. If isect is non-NULL, it is written only when an intersection is found.

bg_isect_tri_ray()

int bg_isect_tri_ray ( const point_t  orig, const point_t  dir, const point_t  vert0, const point_t  vert1, const point_t  vert2, point_t *  isect  )

extern

Test whether a forward ray intersects a triangle.

The ray is orig + t * dir for t >= 0. The direction must be nonzero. If isect is non-NULL, it is written only when an intersection is found.