iges to gltf conversion most likely covers the export of 3D models or geometry between IGES (.igs, .iges) and GL Transmission Format (.gltf). Both formats are nowadays supported in most CAD/3D modeling tools, so it should not be hard one that can be used to work with the content.
As for direct way how to convert iges to gltf, some dedicated converters on file per file basis, this might not be that simple.
Updated: October 17, 2023