Update valid far range

docs/api/en/cameras/OrthographicCamera.html

@@ -72,7 +72,7 @@
 		<p>
 		Camera frustum far plane. Default is *2000*.<br /><br />
 
-		The valid range is between the current value of the [page:.near near] plane and infinity.
+		Must be greater than the current value of [page:.near near] plane.
 		</p>
 
 		<h3>[property:Float left]</h3>

docs/api/en/cameras/PerspectiveCamera.html

@@ -63,7 +63,7 @@
 		<p>
 			Camera frustum far plane. Default is *2000*.<br /><br />
 
-			The valid range is between the current value of the [page:.near near] plane and infinity.
+			Must be greater than the current value of [page:.near near] plane.
 		</p>
 
 		<h3>[property:Float filmGauge]</h3>

docs/api/zh/cameras/OrthographicCamera.html

@@ -75,7 +75,7 @@
 		<h3>[property:Float far]</h3>
 		<p>
 			摄像机视锥体远端面，其默认值为*2000*。<br /><br />
-			其值的有效范围介于[page:.near near]（摄像机视锥体近端面）和无穷大之间。
+			Must be greater than the current value of [page:.near near] plane.
 
 		</p>
 

docs/api/zh/cameras/PerspectiveCamera.html

@@ -62,7 +62,7 @@
 		<p>
 			摄像机的远端面，默认值是*2000*。
 			<br /><br />
-			其有效值范围是在当前摄像机[page:.near near] plane（近端面）的值到无穷远之间。
+			Must be greater than the current value of [page:.near near] plane.
 		</p>
 
 		<h3>[property:Float filmGauge]</h3>