3D ILDA PIC is a Blender add-on that enables the import and export of Grease Pencil objects to and from ILDA and PIC formats, commonly used for laser projectors and software like TouchDesigner. It translates the stroke-based nature of Grease Pencil into laser paths, making Blender a viable editor for laser projection graphics.

The tool handles 3D coordinates with true color (ILDA format 4) and 2D coordinates with true color (ILDA format 5). Users can toggle the addition of parameter points at blank areas or line ends to optimize laser projection. It requires objects to fit within a specific scale range and rely on vertex colors rather than materials.

For users with Lasergraph DSP hardware, the add-on includes options to select the hardware and send PIC data directly from Blender, though this specific feature is limited to Windows systems.