Examples: Clean up. (#24368)

examples/webgl_materials_envmaps_groundprojected.html

@@ -68,7 +68,7 @@
 					1,
 					1000
 				);
-				camera.position.set( - 16, 8, 16 );
+				camera.position.set( - 16, 4, 16 );
 
 				scene = new THREE.Scene();