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.

GIMP 3.0, free and open source image app, looks brilliant

The culmination of seven years of open-source development, GIMP has reached its milestone 3.0 release. GIMP was always powerful, but this feels more like the mature, usable release to take on the proprietary heavyweights.

Peter Kirn - March 20, 2025

Three free spectral synths to try after the new Serum spectral oscillator

Spectral resynthesis is having a moment now that it’s one of the new oscillator types in the mighty Xfer Serum 2. If you’re looking for other ways to get your spectral resynthesis on – or you’re a Serum user who just can’t get enough – here are three free tools to sink your FFTs into.

Peter Kirn - March 19, 2025

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