Create rotation test case for billboard

tests/cpp-tests/Classes/BillBoardTest/BillBoardTest.cpp

@@ -41,6 +41,7 @@ static int sceneIdx = -1;
 
 static std::function<Layer*()> createFunctions[] =
 {
+    CL(BillBoardRotationTest),
     CL(BillBoardTest)
 };
 
@@ -72,6 +73,71 @@ static Layer* restartSpriteTestAction()
     return layer;
 }
 
+//------------------------------------------------------------------
+//
+// Billboard Rotation Test
+//
+//------------------------------------------------------------------
+BillBoardRotationTest::BillBoardRotationTest()
+{
+    auto root = Sprite3D::create();
+    root->setNormalizedPosition(Vec2(.5,.25));
+    addChild(root);
+    
+    auto model = Sprite3D::create("Sprite3DTest/orc.c3b");
+    model->setScale(5);
+    model->setRotation3D(Vec3(0,180,0));
+    root->addChild(model);
+    
+    auto bill = BillBoard::create();
+    bill->setPosition(0, 120);
+    root->addChild(bill);
+    
+    auto sp = Sprite::create("Images/SpookyPeas.png");
+    sp->setScale(2);
+    bill->addChild(sp);
+    
+    auto lbl = Label::create();
+    lbl->setPosition(0, 30);
+    lbl->setString("+100");
+    bill->addChild(lbl);
+    
+    auto jump = JumpBy::create(1, Vec2(0, 0), 30, 1);
+    auto scale = ScaleBy::create(2, 2, 2, 0.1);
+    auto seq = Sequence::create(jump,scale, NULL);
+    
+    auto rot = RotateBy::create(2, Vec3(-90, 0, 0));
+    auto act = Spawn::create(seq, rot,NULL);
+    
+    auto scale2 = scale->reverse();
+    auto rot2 = rot->reverse();
+    auto act2 = Spawn::create(scale2, rot2, NULL);
+    
+    auto seq2 = Sequence::create(act, act2, NULL);
+    auto repeat = RepeatForever::create(seq2);
+    model->runAction(repeat);
+}
+
+BillBoardRotationTest::~BillBoardRotationTest()
+{
+    
+}
+
+std::string BillBoardRotationTest::title() const
+{
+    return "Rotation Test";
+}
+
+std::string BillBoardRotationTest::subtitle() const
+{
+    return "All the sprites should still facing camera";
+}
+
+//------------------------------------------------------------------
+//
+// Billboard Rendering Test
+//
+//------------------------------------------------------------------
 BillBoardTest::BillBoardTest()
 :  _camera(nullptr)
 {

tests/cpp-tests/Classes/BillBoardTest/BillBoardTest.h

@@ -34,7 +34,17 @@ namespace cocos2d {
     class Camera;
 }
 
-
+class BillBoardRotationTest : public BaseTest
+{
+public:
+    CREATE_FUNC(BillBoardRotationTest);
+    BillBoardRotationTest();
+    virtual ~BillBoardRotationTest(void);
+    virtual std::string title() const override;
+    virtual std::string subtitle() const override;
+    
+protected:
+};
 
 class BillBoardTest : public BaseTest
 {

tests/cpp-tests/Classes/Camera3DTest/Camera3DTest.cpp

@@ -130,6 +130,7 @@ CameraRotationTest::CameraRotationTest()
 
     auto sp3d = Sprite3D::create();
     sp3d->setPosition(s.width/2, s.height/2);
+    sp3d->setRotation3D(Vec3(90,90,0));
     addChild(sp3d);
     
     auto lship = Label::create();
@@ -140,10 +141,10 @@ CameraRotationTest::CameraRotationTest()
     //Billboards
     //Yellow is at the back
     bill1 = BillBoard::create("Images/Icon.png");
-    bill1->setPosition3D(Vec3(s.width/2 + 50, s.height/2 + 10, -10));
+    bill1->setPosition3D(Vec3(50, 10, -10));
     bill1->setColor(Color3B::YELLOW);
     bill1->setScale(0.6f);
-    addChild(bill1);
+    sp3d->addChild(bill1);
     
     l1 = Label::create();
     l1->setPosition(Vec2(0,-10));
@@ -157,9 +158,9 @@ CameraRotationTest::CameraRotationTest()
     bill1->addChild(p1);
     
     bill2 = BillBoard::create("Images/Icon.png");
-    bill2->setPosition3D(Vec3(s.width/2 - 50, s.height/2 - 10, 10));
+    bill2->setPosition3D(Vec3(-50, -10, 10));
     bill2->setScale(0.6f);
-    addChild(bill2);
+    sp3d->addChild(bill2);
     
     l2 = Label::create();
     l2->setString("Billboard2");