ISF – The standard for crossplatform interactive GLSL shaders.
ISF stands for "Interactive Shader Format", and is a file format that describes a GLSL fragment shader, as well as how to execute and interact with it. The goal of this file format is to provide a simple and minimal interface for image filters and generative video sources that allows them to be interacted with and reused in a generic and modular fashion.
Typically moving shaders from one environment to another requires having to rewrite code from similar, but slightly different proprietary formats, which can be confusing and time consuming. ISF addresses this problem by providing a free open source baseline standard for working with GLSL that is designed to provide a single efficient hardware accelerated playback video format that can be used with popular media servers, VJ software, non-linear editors and creative coding environments.