This segment of a Bitwig Polymer walkthrough covers two quick but powerful ways to build stereo width and density into any patch. The host shows how a small toggle on Polymer's oscillator detune control switches from mono pitch offset to stereo detune, pushing one side sharp and the other flat to instantly give any sound a wider, more spatial feel.
On top of that, the Swarm oscillator stacks eight voices of the same waveform, each tuned slightly differently, across the stereo field. With stereo detune also active, those eight voices split into eight on the left and eight on the right, all slightly offset from each other, producing dense, beating textures that work especially well for slow, evolving pads.
The host runs through a few waveform options inside Swarm, including sine waves that lean toward eerie, atmospheric tones. He also notes that layering hard sync or phase modulation on top of unison relationships is possible but will disrupt the tuning offsets between voices, so the tradeoff is worth considering before committing to that combination.