ShowBase: Fixed crash when want-render2dp is False

        - Fixed crash in ShowBase when want-render2dp setting
        is set to 0(False).

Signed-off-by: deflected <deflected@users.noreply.github.com>

direct/src/showbase/ShowBase.py

@@ -968,7 +968,9 @@ def openMainWindow(self, *args, **kw):
             if isinstance(self.win, GraphicsWindow):
                 self.setupMouse(self.win)
             self.makeCamera2d(self.win)
-            self.makeCamera2dp(self.win)
+
+            if self.wantRender2dp:
+                self.makeCamera2dp(self.win)
 
             if oldLens != None:
                 # Restore the previous lens properties.
@@ -1559,9 +1561,11 @@ def setupMouse(self, win, fMultiWin=False):
 
         # Tell the gui system about our new mouse watcher.
         self.aspect2d.node().setMouseWatcher(mw.node())
-        self.aspect2dp.node().setMouseWatcher(mw.node())
         self.pixel2d.node().setMouseWatcher(mw.node())
-        self.pixel2dp.node().setMouseWatcher(mw.node())
+        if self.wantRender2dp:
+            self.aspect2dp.node().setMouseWatcher(mw.node())
+            self.pixel2dp.node().setMouseWatcher(mw.node())
+
         mw.node().addRegion(PGMouseWatcherBackground())
 
         return self.buttonThrowers[0]
@@ -2729,7 +2733,8 @@ def windowEvent(self, win):
                 xsize, ysize = self.getSize()
                 if xsize > 0 and ysize > 0:
                     self.pixel2d.setScale(2.0 / xsize, 1.0, 2.0 / ysize)
-                    self.pixel2dp.setScale(2.0 / xsize, 1.0, 2.0 / ysize)
+                    if self.wantRender2dp:
+                        self.pixel2dp.setScale(2.0 / xsize, 1.0, 2.0 / ysize)
 
     def adjustWindowAspectRatio(self, aspectRatio):
         """ This function is normally called internally by
@@ -2753,11 +2758,12 @@ class that has redefined these. """
                 self.a2dLeft = -1
                 self.a2dRight = 1.0
                 # Don't forget 2dp
-                self.aspect2dp.setScale(1.0, aspectRatio, aspectRatio)
-                self.a2dpTop = 1.0 / aspectRatio
-                self.a2dpBottom = - 1.0 / aspectRatio
-                self.a2dpLeft = -1
-                self.a2dpRight = 1.0
+                if self.wantRender2dp:
+                    self.aspect2dp.setScale(1.0, aspectRatio, aspectRatio)
+                    self.a2dpTop = 1.0 / aspectRatio
+                    self.a2dpBottom = - 1.0 / aspectRatio
+                    self.a2dpLeft = -1
+                    self.a2dpRight = 1.0
 
             else:
                 # If the window is WIDE, lets expand the left and right
@@ -2767,11 +2773,12 @@ class that has redefined these. """
                 self.a2dLeft = -aspectRatio
                 self.a2dRight = aspectRatio
                 # Don't forget 2dp
-                self.aspect2dp.setScale(1.0 / aspectRatio, 1.0, 1.0)
-                self.a2dpTop = 1.0
-                self.a2dpBottom = -1.0
-                self.a2dpLeft = -aspectRatio
-                self.a2dpRight = aspectRatio
+                if self.wantRender2dp:
+                    self.aspect2dp.setScale(1.0 / aspectRatio, 1.0, 1.0)
+                    self.a2dpTop = 1.0
+                    self.a2dpBottom = -1.0
+                    self.a2dpLeft = -aspectRatio
+                    self.a2dpRight = aspectRatio
 
             # Reposition the aspect2d marker nodes
             self.a2dTopCenter.setPos(0, 0, self.a2dTop)
@@ -2793,15 +2800,16 @@ class that has redefined these. """
             self.a2dBottomRightNs.setPos(self.a2dRight, 0, self.a2dBottom)
 
             # Reposition the aspect2dp marker nodes
-            self.a2dpTopCenter.setPos(0, 0, self.a2dpTop)
-            self.a2dpBottomCenter.setPos(0, 0, self.a2dpBottom)
-            self.a2dpLeftCenter.setPos(self.a2dpLeft, 0, 0)
-            self.a2dpRightCenter.setPos(self.a2dpRight, 0, 0)
-
-            self.a2dpTopLeft.setPos(self.a2dpLeft, 0, self.a2dpTop)
-            self.a2dpTopRight.setPos(self.a2dpRight, 0, self.a2dpTop)
-            self.a2dpBottomLeft.setPos(self.a2dpLeft, 0, self.a2dpBottom)
-            self.a2dpBottomRight.setPos(self.a2dpRight, 0, self.a2dpBottom)
+            if self.wantRender2dp:
+                self.a2dpTopCenter.setPos(0, 0, self.a2dpTop)
+                self.a2dpBottomCenter.setPos(0, 0, self.a2dpBottom)
+                self.a2dpLeftCenter.setPos(self.a2dpLeft, 0, 0)
+                self.a2dpRightCenter.setPos(self.a2dpRight, 0, 0)
+
+                self.a2dpTopLeft.setPos(self.a2dpLeft, 0, self.a2dpTop)
+                self.a2dpTopRight.setPos(self.a2dpRight, 0, self.a2dpTop)
+                self.a2dpBottomLeft.setPos(self.a2dpLeft, 0, self.a2dpBottom)
+                self.a2dpBottomRight.setPos(self.a2dpRight, 0, self.a2dpBottom)
 
             # If anybody needs to update their GUI, put a callback on this event
             messenger.send("aspectRatioChanged")