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    BRL-CAD
    
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Functions | |
| void | bg_ray_invdir (vect_t *invdir, vect_t dir) | 
| Intersection between a ray and an axis-aligned box.   | |
| int | bg_isect_aabb_ray (fastf_t *r_min, fastf_t *r_max, point_t opt, const fastf_t *invdir, const fastf_t *aabb_min, const fastf_t *aabb_max) | 
Intersection between a ray and an axis-aligned box.