three-decalgeometry depends on three so you'll need to add both to your project:
[cljsjs/three-decalgeometry "0.1.0-0"] ;; latest release
[cljsjs/three-decalgeometry "0.1.0-0"]
This jar comes with deps.cljs
as used by the Foreign Libs feature
of the ClojureScript compiler. After adding the above dependency to your project
you can require the packaged library like so:
(ns application.core
(:require cljsjs.three-decalgeometry))
And then reference the class like:
(def decal (js/THREE.DecalGeometry.))