Do not call UpdateUI() when UI is not visible (close #160)

Author: TheMostDiligent

SampleBase/include/SampleBase.hpp

@@ -169,8 +169,9 @@ class SampleBase
 
     virtual void Initialize(const SampleInitInfo& InitInfo) = 0;
 
-    virtual void Render()                                    = 0;
-    virtual void Update(double CurrTime, double ElapsedTime) = 0;
+    virtual void Render() = 0;
+
+    virtual void Update(double CurrTime, double ElapsedTime, bool DoUpdateUI) = 0;
 
     /// Called by the framework to let the application release any references to the swap chain buffers.
     ///
@@ -226,7 +227,7 @@ class SampleBase
     InputController m_InputController;
 };
 
-inline void SampleBase::Update(double CurrTime, double ElapsedTime)
+inline void SampleBase::Update(double CurrTime, double ElapsedTime, bool DoUpdateUI)
 {
     ++m_NumFramesRendered;
     ++m_CurrentFrameNumber;
@@ -238,7 +239,10 @@ inline void SampleBase::Update(double CurrTime, double ElapsedTime)
         m_LastFPSTime       = CurrTime;
     }
 
-    UpdateUI();
+    if (DoUpdateUI)
+    {
+        UpdateUI();
+    }
 }
 
 extern SampleBase* CreateSample();

SampleBase/src/SampleApp.cpp

@@ -894,7 +894,7 @@ void SampleApp::Update(double CurrTime, double ElapsedTime)
     }
     if (m_pDevice)
     {
-        m_TheSample->Update(CurrTime, ElapsedTime);
+        m_TheSample->Update(CurrTime, ElapsedTime, m_bShowUI);
         m_TheSample->GetInputController().ClearState();
     }
 }

Samples/Atmosphere/src/AtmosphereSample.cpp

@@ -787,7 +787,7 @@ void ComputeApproximateNearFarPlaneDist(const float3&   CameraPos,
 }
 
 
-void AtmosphereSample::Update(double CurrTime, double ElapsedTime)
+void AtmosphereSample::Update(double CurrTime, double ElapsedTime, bool DoUpdateUI)
 {
     const auto& mouseState = m_InputController.GetMouseState();
 
@@ -829,7 +829,7 @@ void AtmosphereSample::Update(double CurrTime, double ElapsedTime)
             float4x4::RotationArbitrary(WorldRight, fPitchDelta);
     }
 
-    SampleBase::Update(CurrTime, ElapsedTime);
+    SampleBase::Update(CurrTime, ElapsedTime, DoUpdateUI);
 
     m_fElapsedTime = static_cast<float>(ElapsedTime);
 

Samples/Atmosphere/src/AtmosphereSample.hpp

@@ -47,7 +47,7 @@ class AtmosphereSample final : public SampleBase
 
     virtual void Initialize(const SampleInitInfo& InitInfo) override final;
     virtual void Render() override final;
-    virtual void Update(double CurrTime, double ElapsedTime) override final;
+    virtual void Update(double CurrTime, double ElapsedTime, bool DoUpdateUI) override final;
     virtual void WindowResize(Uint32 Width, Uint32 Height) override final;
 
     virtual const Char* GetSampleName() const override final { return "Atmosphere Sample"; }

Samples/GLTFViewer/src/GLTFViewer.cpp

@@ -1426,14 +1426,14 @@ void GLTFViewer::Render()
     }
 }
 
-void GLTFViewer::Update(double CurrTime, double ElapsedTime)
+void GLTFViewer::Update(double CurrTime, double ElapsedTime, bool DoUpdateUI)
 {
     if (m_CameraId == 0)
     {
         m_Camera.Update(m_InputController);
     }
 
-    SampleBase::Update(CurrTime, ElapsedTime);
+    SampleBase::Update(CurrTime, ElapsedTime, DoUpdateUI);
 
     m_ElapsedTime = static_cast<float>(ElapsedTime);
 

Samples/GLTFViewer/src/GLTFViewer.hpp

@@ -61,7 +61,7 @@ class GLTFViewer final : public SampleBase
 
     virtual void Initialize(const SampleInitInfo& InitInfo) override final;
     virtual void Render() override final;
-    virtual void Update(double CurrTime, double ElapsedTime) override final;
+    virtual void Update(double CurrTime, double ElapsedTime, bool DoUpdateUI) override final;
 
     virtual const Char* GetSampleName() const override final { return "GLTF Viewer"; }
 

Samples/ImguiDemo/src/ImguiDemo.cpp

@@ -103,9 +103,9 @@ void ImguiDemo::Render()
 }
 
 
-void ImguiDemo::Update(double CurrTime, double ElapsedTime)
+void ImguiDemo::Update(double CurrTime, double ElapsedTime, bool DoUpdateUI)
 {
-    SampleBase::Update(CurrTime, ElapsedTime);
+    SampleBase::Update(CurrTime, ElapsedTime, DoUpdateUI);
 }
 
 void ImguiDemo::WindowResize(Uint32 Width, Uint32 Height)

Samples/ImguiDemo/src/ImguiDemo.hpp

@@ -42,7 +42,7 @@ class ImguiDemo final : public SampleBase
     virtual void Initialize(const SampleInitInfo& InitInfo) override final;
 
     virtual void Render() override final;
-    virtual void Update(double CurrTime, double ElapsedTime) override final;
+    virtual void Update(double CurrTime, double ElapsedTime, bool DoUpdateUI) override final;
 
     virtual const Char* GetSampleName() const override final { return "Dear Imgui Demo"; }
 

Samples/NuklearDemo/src/NuklearDemo.cpp

@@ -95,9 +95,9 @@ void NuklearDemo::Render()
 }
 
 
-void NuklearDemo::Update(double CurrTime, double ElapsedTime)
+void NuklearDemo::Update(double CurrTime, double ElapsedTime, bool DoUpdateUI)
 {
-    SampleBase::Update(CurrTime, ElapsedTime);
+    SampleBase::Update(CurrTime, ElapsedTime, DoUpdateUI);
 }
 
 void NuklearDemo::WindowResize(Uint32 Width, Uint32 Height)

Samples/NuklearDemo/src/NuklearDemo.hpp

@@ -44,7 +44,7 @@ class NuklearDemo final : public SampleBase
     virtual void Initialize(const SampleInitInfo& InitInfo) override final;
 
     virtual void Render() override final;
-    virtual void Update(double CurrTime, double ElapsedTime) override final;
+    virtual void Update(double CurrTime, double ElapsedTime, bool DoUpdateUI) override final;
 
     virtual const Char* GetSampleName() const override final { return "Nuklear Demo"; }