Merge pull request #6588 from SuperUserNameMan/expose_geometryinstance_get_aabb_etc

expose GeometryInstance.get_aabb() etc fixes #6587

scene/3d/immediate_geometry.cpp

@@ -72,6 +72,7 @@ void ImmediateGeometry::add_vertex(const Vector3& p_vertex){
 	if (empty) {
 		aabb.pos=p_vertex;
 		aabb.size=Vector3();
+		empty=false;
 	} else {
 		aabb.expand_to(p_vertex);
 	}

scene/3d/visual_instance.cpp

@@ -128,6 +128,8 @@ void VisualInstance::_bind_methods() {
 	ObjectTypeDB::bind_method(_MD("set_layer_mask","mask"), &VisualInstance::set_layer_mask);
 	ObjectTypeDB::bind_method(_MD("get_layer_mask"), &VisualInstance::get_layer_mask);
 
+	ObjectTypeDB::bind_method(_MD("get_transformed_aabb"), &VisualInstance::get_transformed_aabb);
+
 	ADD_PROPERTY( PropertyInfo( Variant::INT, "layers",PROPERTY_HINT_ALL_FLAGS), _SCS("set_layer_mask"), _SCS("get_layer_mask"));
 
 
@@ -376,6 +378,8 @@ void GeometryInstance::_bind_methods() {
 	ObjectTypeDB::bind_method(_MD("set_extra_cull_margin","margin"), &GeometryInstance::set_extra_cull_margin);
 	ObjectTypeDB::bind_method(_MD("get_extra_cull_margin"), &GeometryInstance::get_extra_cull_margin);
 
+	ObjectTypeDB::bind_method(_MD("get_aabb"),&GeometryInstance::get_aabb);
+
 	ObjectTypeDB::bind_method(_MD("_baked_light_changed"), &GeometryInstance::_baked_light_changed);
 
 	ADD_PROPERTYI( PropertyInfo( Variant::BOOL, "geometry/visible"), _SCS("set_flag"), _SCS("get_flag"),FLAG_VISIBLE);