Comment in webgl_shadow_contact

examples/webgl_shadow_contact.html

@@ -204,6 +204,7 @@
 
 			}
 
+			// renderTarget --> blurPlane (horizontalBlur) --> renderTargetBlur --> blurPlane (verticalBlur) --> renderTarget
 			function blurShadow( amount ) {
 
 				blurPlane.visible = true;