diff --git a/scene/3d/camera_3d.cpp b/scene/3d/camera_3d.cpp
index 7ffca4bd9e6..689afa56082 100644
--- a/scene/3d/camera_3d.cpp
+++ b/scene/3d/camera_3d.cpp
@@ -318,8 +318,8 @@ Vector3 Camera3D::project_ray_origin(const Point2 &p_pos) const {
 
 bool Camera3D::is_position_behind(const Vector3 &p_pos) const {
 	Transform t = get_global_transform();
-	Vector3 eyedir = -get_global_transform().basis.get_axis(2).normalized();
-	return eyedir.dot(p_pos) < (eyedir.dot(t.origin) + near);
+	Vector3 eyedir = -t.basis.get_axis(2).normalized();
+	return eyedir.dot(p_pos - t.origin) < near;
 }
 
 Vector<Vector3> Camera3D::get_near_plane_points() const {