An ISF, or “Interactive Shader Format” file is a GLSL fragment shader that includes a small blob of information that describes any input controls that the host application (such as slider, button, and color picker controls in VDMX) should provide for the user when the generator is loaded for use, as well as other meta-data including the authorship, category and description.

In this two part tutorial we'll cover the basics of using ISF generators within VDMX as sources for layers and how to install new example ISF files you may download from the Internet, followed by a quick introduction to creating your own GLSL fragment shaders.