closed issue #2386 : Fix bug : add a new method to clear the stencil buffer bit used by ClippingNode

cocos2dx/misc_nodes/CCClippingNode.cpp

@@ -142,6 +142,24 @@ void ClippingNode::onExit()
     Node::onExit();
 }
 
+void ClippingNode::drawFullScreenQuadClearStencil()
+{
+    kmGLMatrixMode(KM_GL_MODELVIEW);
+    kmGLPushMatrix();
+    kmGLLoadIdentity();
+    
+    kmGLMatrixMode(KM_GL_PROJECTION);
+    kmGLPushMatrix();
+    kmGLLoadIdentity();
+    
+    ccDrawSolidRect(ccp(-1,-1), ccp(1,1), Color4F(1, 1, 1, 1));
+    
+    kmGLMatrixMode(KM_GL_PROJECTION);
+    kmGLPopMatrix();
+    kmGLMatrixMode(KM_GL_MODELVIEW);
+    kmGLPopMatrix();
+}
+
 void ClippingNode::visit()
 {
     // if stencil buffer disabled
@@ -256,7 +274,7 @@ void ClippingNode::visit()
     
     // draw a fullscreen solid rectangle to clear the stencil buffer
     //ccDrawSolidRect(PointZero, ccpFromSize([[Director sharedDirector] winSize]), Color4F(1, 1, 1, 1));
-    ccDrawSolidRect(PointZero, ccpFromSize(Director::sharedDirector()->getWinSize()), Color4F(1, 1, 1, 1));
+    drawFullScreenQuadClearStencil();
     
     ///////////////////////////////////
     // DRAW CLIPPING STENCIL

cocos2dx/misc_nodes/CCClippingNode.h

@@ -94,6 +94,11 @@ public:
     bool isInverted() const;
     void setInverted(bool bInverted);
     
+private:
+    /**draw fullscreen quad to clear stencil bits
+    */
+    void drawFullScreenQuadClearStencil();
+    
 private:
     ClippingNode();
 };