Free: 4ms VCV Rack ROMplers put gobs of drums under voltage control

The library for the free and open source VCV Rack has been on fire lately. But this one is a standout: 4ms has a sprawling library of ROMpler modules based on classic drum-machine samples. And don’t let the “ROMpler” part fool you: those samples are ready for full voltage control.

New free VCV Rack modules: chaotic oscillators, HP word generator, drums

It’s time again for that trip-to-the-candy-store feeling with VCV Rack: the Eurorack rush without spending anything at all. Since our last episode, we’ve gotten new 4ms Roland-style drums, some unique stuff from Venom, a trio of chaotic oscillators, and a sequencer inspired by the legendary HP 8006A Word Generator. Hands-on with these open-source creations — let’s go!

Peter Kirn - July 21, 2025

ISF’s visual magic for Metal and macOS is now open source

Interactive Shader Format (ISF) code for working with Metal and rendering on macOS, plus an underlying Metal framework that powers live visual app VDMX6, are now free and open source. That’s great news even if you’re just toying around with shaders or working with visuals, as it opens up lots of possibilities to come.

Peter Kirn - March 24, 2025