+ /* unpack challenge models */
+ for( u32 i=0; i<mdl_arrcount( &world->ent_challenge ); i++ ){
+ ent_challenge *challenge = mdl_arritm( &world->ent_challenge, i );
+
+ for( u32 j=0; j<challenge->submesh_count; j ++ ){
+ mdl_submesh *sm = mdl_arritm( &world->meta.submeshs,
+ challenge->submesh_start+j );
+ world_unpack_submesh_dynamic( world, &world->scene_no_collide, sm );
+ }
+ }
+
+ /* unpack gate models */
+ for( u32 i=0; i<mdl_arrcount( &world->ent_gate ); i++ ){
+ ent_gate *gate = mdl_arritm( &world->ent_gate, i );