Added basic types for ThreeJS BufferGeometryUtils and DragControls

types/three/index.d.ts

@@ -28,6 +28,7 @@ export * from "./three-copyshader";
 export * from "./three-css3drenderer";
 export * from "./three-ctmloader";
 export * from "./three-ddsloader";
+export * from './three-dragcontrols';
 export * from "./three-editorcontrols";
 export * from "./three-effectcomposer";
 export * from "./three-examples";

types/three/three-core.d.ts

@@ -1447,6 +1447,15 @@ export class Geometry extends EventDispatcher {
     dispatchEvent(event: { type: string; [attachment: string]: any; }): void;
 }
 
+/**
+ * @see <a href="https://github.com/mrdoob/three.js/blob/master/examples/js/BufferGeometryUtils.js">examples/js/BufferGeometryUtils.js</a>
+ */
+export namespace BufferGeometryUtils {
+  export function mergeBufferGeometries(geometries: any[]): BufferGeometry;
+  export function computeTangents(geometry: BufferGeometry): null;
+  export function mergeBufferAttributes(attributes: any[]): BufferAttribute;
+}
+
 /**
  * @deprecated
  */