diff --git a/cocos/3d/CCPlane.cpp b/cocos/3d/CCPlane.cpp
index 3fa0b7f8b9..722ed2e91d 100755
--- a/cocos/3d/CCPlane.cpp
+++ b/cocos/3d/CCPlane.cpp
@@ -92,17 +92,4 @@ PointSide Plane::getSide(const Vec3& point) const
         return PointSide::IN_PLANE;
 }
 
-PointSide Plane::getSide(const Vec3& point, const Vec3& tolerance) const
-{
-    float dist = dist2Plane(point);
-    float maxAbsDist = fabs(_normal.x * tolerance.x) + fabs(_normal.y * tolerance.y) + fabs(_normal.z * tolerance.z);
-
-    if (dist > maxAbsDist)
-        return PointSide::FRONT_PLANE;
-    else if (dist < -maxAbsDist)
-        return PointSide::BEHIND_PLANE;
-    else
-        return PointSide::IN_PLANE;
-}
-
 NS_CC_END
diff --git a/cocos/3d/CCPlane.h b/cocos/3d/CCPlane.h
index 87509b32f3..cc1baf822c 100755
--- a/cocos/3d/CCPlane.h
+++ b/cocos/3d/CCPlane.h
@@ -100,11 +100,6 @@ public:
     */
     PointSide getSide(const Vec3& point) const;
 
-    /**
-    * Return the side where the point is.
-    */
-    PointSide getSide(const Vec3& point, const Vec3& tolerance) const;
-
 protected:
     Vec3 _normal; // the normal line of the plane
     float _dist; // original displacement of the normal