Update SEA3DLoader.js

use array of materials instead of MultiMaterial (see THREE r85 changes)

examples/js/loaders/sea3d/SEA3DLoader.js

@@ -1999,7 +1999,8 @@ THREE.SEA3D.prototype.readMesh = function ( sea ) {
 
 			}
 
-			mat = new THREE.MultiMaterial( mats );
+//			mat = new THREE.MultiMaterial( mats );
+			mat = mats;
 
 		} else {