Available with 3D Analyst license.
The Conversion toolset contains tools that export a raster dataset's data area to a boundary feature and convert a raster surface to a TIN or a multipoint feature class.
Constructs a 3D polygon or polyline delineating the height along the boundary of a raster surface.
Converts raster cell centers to 3D multipoint features with z-values that reflect the raster cell value.
Converts a raster to a triangulated irregular network (TIN) dataset.