GDTF & MVR

GDTF: The General Device Type Format is an open standard for describing devices of the entertainment industry. These devices may be lighting fixtures, trusses, distribution boxes, media servers, lasers or other devices used in the entertainment industry. This documentation describes DIN SPEC 15800:2022-02 also known as GDTF Version 1.2.

MVR: The My Virtual Rig file format is an open standard which allows programs to share data and geometry of a scene for the entertainment industry. A scene is a set of parametric objects such as fixtures, trusses, video screens, and other objects that are used in the entertainment industry. This documentation describes DIN SPEC 15801:2023-12 also known as MVR Version 1.6.


Latest news

Electrical power planning MVR workflow introduced in Production Assist 1.11

With electrical power planning being big part of event planning, latest version 1.11 of Production Assist adds the ability to export and import the data and electrical connections via MVR. Other MVR and GDTF improvements include displaying the state of MVR connections, export textures to MVR and exporting all types of scene objects as GDTF in MVR.

Posted June 8, 2024  ‐ Categories: GDTF, MVR, Production Assist

GDTF Share Report for May 2024

GDTF Share report for the month of May 2024

Posted June 1, 2024  ‐ 1 min read  ‐ Categories: GDTF, GDTF Share

Chicotron Visuals: Natalie Taylor - In The Air Tonight - Pre-visual Render in Unreal Engine

Chicotron Visuals has shared a pre-visualization of the popular song 'In The Air Tonight', covered by Natalie Taylor. The visualization, created using Unreal Engine, features fixtures primarily based on GDTF imports and is controlled through the gMA2 onPC software. This was done to test and showcase the possibilities of UE, and while there is still a lot to learn and improve, the results look quite impressive.

Posted May 27, 2024  ‐ Categories: GDTF, Unreal Engine


Describing devices of the entertainment industry

DMX Modes

Fixtures can have many modes which change its available capabilities. These are all specified in a single file.

Channel Mappings

Channel mappings available in the fixture are associated with which values produce which responses.

Color & Gobo wheels

Bundled image files provide gobo patterns and color mappings define virtual or physical color wheels.

Fixture Geometry

Bundeled glTF, glb or 3DS files specify the specific geometry of lighting fixtures. Fixture functions are tied to these models.

Color Information

sRGB, ANSI standard, and ProPhoto values can be used to specify the calibrated color space of the light.

Physical properties

Power consumption, weight, operating temperature, and more specify the physical properties of a fixture.


Describing the entertainment scene

Scene description

Scenes are organized into groups, layers and child lists of objects with custom classing, positions, rotations, geometries, addresses and connections.

GDTF Fixture

Using the GDTF Specification, detailed description of lighting fixtures, trusses, distribution boxes, lasers and other devices is possible.

Symbol reuse

Objects can be defined as symbols and inserted into the scene multiple times with instance specific properties.

MVR xchange

MVR-xchange - allows multiple clients within the same network to share MVR files.