diff options
Diffstat (limited to 'scene/3d/light_3d.cpp')
| -rw-r--r-- | scene/3d/light_3d.cpp | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/scene/3d/light_3d.cpp b/scene/3d/light_3d.cpp index 77073ff763..cca84c2b85 100644 --- a/scene/3d/light_3d.cpp +++ b/scene/3d/light_3d.cpp @@ -157,9 +157,16 @@ AABB Light3D::get_aabb() const { return AABB(Vector3(-1, -1, -1) * param[PARAM_RANGE], Vector3(2, 2, 2) * param[PARAM_RANGE]); } else if (type == RenderingServer::LIGHT_SPOT) { - real_t len = param[PARAM_RANGE]; - real_t size = Math::tan(Math::deg_to_rad(param[PARAM_SPOT_ANGLE])) * len; - return AABB(Vector3(-size, -size, -len), Vector3(size * 2, size * 2, len)); + real_t cone_slant_height = param[PARAM_RANGE]; + real_t cone_angle_rad = Math::deg_to_rad(param[PARAM_SPOT_ANGLE]); + + if (cone_angle_rad > Math_PI / 2.0) { + // Just return the AABB of an omni light if the spot angle is above 90 degrees. + return AABB(Vector3(-1, -1, -1) * cone_slant_height, Vector3(2, 2, 2) * cone_slant_height); + } + + real_t size = Math::sin(cone_angle_rad) * cone_slant_height; + return AABB(Vector3(-size, -size, -cone_slant_height), Vector3(2 * size, 2 * size, cone_slant_height)); } return AABB(); |