Visual Synthesizer (VS) by Imaginando

Previously VS was a plugin for Digital Audio Workstations; but is now a stand-alone app for Windows, Mac, and IOS. Imaginando also make several audio apps.
VS is a GUI for manipulating “Materials”; which is VS terminology for GLSL Shaders.
VS materials follow a structure similar to ISF (Interactive Shader Format) but the two formats are not identical/compatible with each other. This means that if you import an ISF shader as a new material into VS, it will not work.
VS focuses on Audio-Reactivity.
It appears they are pivoting to a business model of selling the software and then charging for visual packs.
Sale 50% on Mar 2024
Creating and editing custom materials in VS - Visual Synthesizer with GLSL fragment shaders