Merge pull request #15921 from Chabam/CSS2DRenderer-clipping-bug

CSS2DRenderer: properly clip objects outside frustum

Author: Mugen87

examples/js/renderers/CSS2DRenderer.js

@@ -82,6 +82,7 @@ THREE.CSS2DRenderer = function () {
 			element.style.MozTransform = style;
 			element.style.oTransform = style;
 			element.style.transform = style;
+			element.style.display = ( vector.z < - 1 || vector.z > 1 ) ? 'none' : '';
 
 			var objectData = {
 				distanceToCameraSquared: getDistanceToSquared( camera, object )