intersection test for cone and plane (fails)

tests/feature/intersections/plane-intersect.cc

@@ -157,6 +157,12 @@ TG_FUZZ_TEST(Plane, Intersect)
         CHECK(!intersects(c, p));
 
         p.normal = any_normal(d);
-        CHECK(intersects(c, p));
+
+        auto rotation_mat = tg::rotation_around(any_normal(d), c.opening_angle);
+        auto new_normal = normalize(rotation_mat * d);
+        p = tg::plane3(new_normal, center - new_normal * 100);
+
+        // TODO should not intersect! is moved away from center and normal is oriented so that the plane runs parallel to the cone (?)
+        CHECK(!intersects(c, p));
     }
 }