saiyawong 0 Posted June 12, 2020 Hi everyone, If I have many emitter source in Flip DOP and I have one of custom vel for volume velocity by copy. So if I want active force on just one of all emitter source but I want to make all of fluid from many emitter still interact together. So how to mask volume vel or how to tell volume vel active on some emitter. Thanks. Share this post Link to post Share on other sites