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Fixed false positives in the culling system.

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This fixes numerous false positives coming out of the culling system.

AABB checks are now a full separating-axis check against the frustum, with the points of the frustum being compared to the planes of the box just as the points of the box were being compared to the planes of the frustum. This fixes large objects behind the camera not being culled correctly.

Some systems that used frustums that were (sometimes mistakenly?) unbounded on one or more side have been modified to be fully enclosed.
This commit is contained in:
Kiri Jolly
2020-04-28 17:14:06 -07:00
parent 459cab99f4
commit 87ba4daf4b
8 changed files with 92 additions and 24 deletions
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4
core/math/triangle_mesh.h
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@@ -90,8 +90,8 @@ public:
bool is_valid() const;
bool intersect_segment(const Vector3 &p_begin, const Vector3 &p_end, Vector3 &r_point, Vector3 &r_normal) const;
bool intersect_ray(const Vector3 &p_begin, const Vector3 &p_dir, Vector3 &r_point, Vector3 &r_normal) const;
bool intersect_convex_shape(const Plane *p_planes, int p_plane_count) const;
bool inside_convex_shape(const Plane *p_planes, int p_plane_count, Vector3 p_scale = Vector3(1, 1, 1)) const;
bool intersect_convex_shape(const Plane *p_planes, int p_plane_count, const Vector3 *p_points, int p_point_count) const;
bool inside_convex_shape(const Plane *p_planes, int p_plane_count, const Vector3 *p_points, int p_point_count, Vector3 p_scale = Vector3(1, 1, 1)) const;
Vector3 get_area_normal(const AABB &p_aabb) const;
Vector<Face3> get_faces() const;