Optional ReadonlygeomURL to .geom file.
Optional Readonlygeom-URL to .geom-feat file.
Optional ReadonlyidxURL to .idx file.
Optional ReadonlypropURL to .prop file.
Optional Readonlyt8cmURL to .t8cm client model file.
Optional Readonlyt8gdURL to .t8gd geometry data file.
Optional Readonlyt8giURL to .t8gi geometry info file.
Represents Twinfinity URLs to .idx, .geom and .prop files.