basic imgui control (imgui capture test)

hw3d/App.cpp

@@ -79,16 +79,7 @@ App::App()
 
 void App::DoFrame()
 {
-	const auto dt = timer.Mark();
-
-	if( wnd.kbd.KeyIsPressed( VK_SPACE ) )
-	{
-		wnd.Gfx().DisableImgui();
-	}
-	else
-	{
-		wnd.Gfx().EnableImgui();
-	}
+	const auto dt = timer.Mark() * speed_factor;
 	wnd.Gfx().BeginFrame( 0.07f,0.0f,0.12f );
 
 	for( auto& d : drawables )
@@ -96,11 +87,17 @@ void App::DoFrame()
 		d->Update( wnd.kbd.KeyIsPressed( VK_SPACE ) ? 0.0f : dt );
 		d->Draw( wnd.Gfx() );
 	}
-	   
-	if( show_demo_window )
+
+	static char buffer[1024];
+
+	// imgui window to control simulation speed
+	if( ImGui::Begin( "Simulation Speed" ) )
 	{
-		ImGui::ShowDemoWindow( &show_demo_window );
+		ImGui::SliderFloat( "Speed Factor",&speed_factor,0.0f,4.0f );
+		ImGui::Text( "Application average %.3f ms/frame (%.1f FPS)",1000.0f / ImGui::GetIO().Framerate,ImGui::GetIO().Framerate );
+		ImGui::InputText( "Butts",buffer,sizeof( buffer ) );
 	}
+	ImGui::End();
 
 	// present
 	wnd.Gfx().EndFrame();

hw3d/App.h

@@ -17,6 +17,6 @@ private:
 	Window wnd;
 	ChiliTimer timer;
 	std::vector<std::unique_ptr<class Drawable>> drawables;
-	bool show_demo_window = true;
+	float speed_factor = 1.0f;
 	static constexpr size_t nDrawables = 180;
 };
\ No newline at end of file