performs_culling_checks = false;
cull_buffer_left = -4;
cull_buffer_right = -4;
cull_buffer_top = -4;
cull_buffer_bottom = -4;
cull_buffer = 0;
is_culled = false;
if (!instance_exists(obj_culling_manager))
    instance_create(0, 0, obj_culling_manager);