Bauke Westendorp

Zeevonk is a modular system for controlling lighting fixtures. This project is the result of a deep rabbit hole I went into, when creating Radiant. I realized I was writing the same DMX resolvers for GDTF files over and over again. Zeevonk is my way of consolidating all of my research into a hub for DMX lighting.

An experimental, node-graph based lighting control system written in Rust using GPUI. Radiant's primary mechanism for generating effects are node-graphs. A node-graph can be run on a fixture group, processing the graph (with some context) for each fixture in that group. In more recent versions of Radiant, the node system has been removed, because I want to make sure the fundamental structure of the software (think attribute processing, patches, etc.) is in place before working on actually generating dynamic effects.

MVR (My Virtual Rig) and GDTF (General Device Type Format) are open standards used to describe lighting rigs and fixtures in entertainment production. While MVR files contain scene and rig data, GDTF files define the specific characteristics and geometry of individual fixtures. Because these formats support thousands of devices across multiple manufacturers, their data structures are large and rely heavily on optional fields. This means it's non-trivial to read commonly used data like the channel count of a fixture's DMX mode. This often makes directly reading the structures verbose and difficult to manage. mvr-gdtf abstracts this complexity by providing lookup tables and high-level helper functions. The goal is to let you extract the data you actually need without navigating the deep, nested specifications of the underlying XML. Though, if you want to manually find anything defined in the description files, you can.