GDTF How To

Add Geometries

Geometries are used to describe the physical and logical dependencies of a fixture type.

Handle Wheels

Wheels are used to describe sets of selectable slots which modify the color and/or shape of a light beam, for example color wheels, gobo wheels, animation wheels or prisms.

Create Virtual Channels

Virtual channels are channels which don't have a DMX address assigned and therefore don't generate DMX output.

Handle Split Channels

Each **DMX Channel** in GDTF holds one or multiple **Logical Channels**. While the DMX channel contains information like the DMX address(es) and resolution, the Logical Channel(s) describes the actual function(s).

Mode Dependencies

Some fixtures have channels which control different functions depending on the state of another channel.

Geometries Positioning

Before you define any physical attributes, you have to make sure to understand how positioning, rotation and orientation is defined in GDTF.

Preparing PNG assets

Rasterized PNG images are used in GDTF in several places - as a device thumbnail or as a MediaFileName in slots for gobo wheels and animation wheels.

Handle Prisms

Prisms in GDTF are part of a Wheel and in particular, they are inside of what is called a Wheel Slot.