Added flipped persp coll plane

direct/src/wxwidgets/ViewPort.py

@@ -230,6 +230,14 @@ class Viewport(wx.Panel, DirectObject):
     collPlane.setIntoCollideMask(BitMask32.bit(21)|oldBitmask)
     v.collPlane = NodePath(collPlane)
     v.collPlane.reparentTo(v.grid)
+
+    collPlane2 = CollisionNode('PerspGridCol2')
+    collPlane2.addSolid(CollisionPlane(Plane(0, 0, -1, 0)))
+    oldBitmask = collPlane2.getIntoCollideMask()
+    collPlane2.setIntoCollideMask(BitMask32.bit(21)|oldBitmask)
+    v.collPlane2 = NodePath(collPlane2)
+    v.collPlane2.reparentTo(v.grid)
+
     #v.grid.gridBack.findAllMatches("**/+GeomNode")[0].setName("_perspViewGridBack")
     LE_showInOneCam(v.grid, 'persp')
     return v

direct/src/wxwidgets/WxPandaShell.py

@@ -178,6 +178,8 @@ class WxPandaShell(WxAppShell):
             base.direct.manipulationControl.supportMultiView()
             base.direct.cameraControl.useMayaCamControls = 1
             base.direct.cameraControl.perspCollPlane = self.perspView.collPlane
+            base.direct.cameraControl.perspCollPlane2 = self.perspView.collPlane2
+            
             for widget in base.direct.manipulationControl.widgetList:
                 widget.setBin('gui-popup', 0)
                 widget.setDepthTest(0)