A continuous line that connects back to the start.
This is nearly the same as [page:Line]; the only difference is that it is
rendered using
[link:https://developer.mozilla.org/en-US/docs/Web/API/WebGLRenderingContext/drawElements gl.LINE_LOOP] instead of
[link:https://developer.mozilla.org/en-US/docs/Web/API/WebGLRenderingContext/drawElements gl.LINE_STRIP],
which draws a straight line to the next vertex, and
connects the last vertex back to the first.
[page:BufferGeometry geometry] — List of vertices representing points on
the line loop.
[page:Material material] — Material for the line. Default is
[page:LineBasicMaterial LineBasicMaterial].
See the base [page:Line] class for common properties.
Read-only flag to check if a given object is of type [name].
See the base [page:Line] class for common methods.
[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]