diff options
Diffstat (limited to 'src/modules/ray/ray_object_plane.h')
| -rw-r--r-- | src/modules/ray/ray_object_plane.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/modules/ray/ray_object_plane.h b/src/modules/ray/ray_object_plane.h index b33f342..8fb64c8 100644 --- a/src/modules/ray/ray_object_plane.h +++ b/src/modules/ray/ray_object_plane.h @@ -1,6 +1,7 @@ #ifndef _RAY_OBJECT_PLANE_H #define _RAY_OBJECT_PLANE_H +#include "ray_3f.h" #include "ray_object_type.h" #include "ray_ray.h" #include "ray_surface.h" @@ -18,8 +19,8 @@ static inline int ray_object_plane_intersects_ray(ray_object_plane_t *plane, ray { float d = ray_3f_dot(&plane->normal, &ray->direction); - if (d != 0) { - float distance = -(ray_3f_dot(&plane->normal, &ray->origin) + plane->distance) / d; + if (d >= 0.00001f) { + float distance = (ray_3f_dot(&plane->normal, &ray->origin) + plane->distance) / d; if (distance > 0) { *res_distance = distance; |