Fix FBX orthographic camera size

modules/fbx/fbx_document.cpp

@@ -1266,7 +1266,7 @@ Error FBXDocument::_parse_cameras(Ref<FBXState> p_state) {
 			camera->set_fov(Math::deg_to_rad(real_t(fbx_camera->field_of_view_deg.y)));
 		} else {
 			camera->set_perspective(false);
-			camera->set_size_mag(real_t(fbx_camera->orthographic_size.y));
+			camera->set_size_mag(real_t(fbx_camera->orthographic_size.y * 0.5f));
 		}
 		if (fbx_camera->near_plane != 0.0f) {
 			camera->set_depth_near(fbx_camera->near_plane);