DX12-ImGui入门讲解

//版本检测
	IMGUI_CHECKVERSION();
	//主要加载ImGUI配置（Ini）相关的操作
	ImGui::CreateContext();
	//元件的颜色初始化
	ImGui::StyleColorsDark();
	//win32初始化 加载对应的DLL和初始化时间等
	ImGui_ImplWin32_Init(GetMianWindowsHandle());
	UINT CBVDescriptorSize = GetDescriptorHandleIncrementSizeByCBV_SRV_UAV();
	auto CPUDescriptor =
		CD3DX12_CPU_DESCRIPTOR_HANDLE(
			InHeap->GetCPUDescriptorHandleForHeapStart(),
			InOffset, CBVDescriptorSize);
	auto GPUDescriptor =
		CD3DX12_GPU_DESCRIPTOR_HANDLE(
		InHeap->GetGPUDescriptorHandleForHeapStart(),
		InOffset,
		CBVDescriptorSize);
	//初始化后台数据 注册对应的驱动和帧数
	ImGui_ImplDX12_Init(
		GetD3dDevice().Get(),1,
		DXGI_FORMAT_R8G8B8A8_UNORM,InHeap,
		CPUDescriptor, 
		GPUDescriptor);

//构建PSO(根签名 shader 输入布局) 构建字体
	ImGui_ImplDX12_NewFrame();
	//初始化 视口 手柄 鼠标移动 帧时间
	ImGui_ImplWin32_NewFrame();
	ImGui::NewFrame();
	//绘制
	Tick(DeltaTime);
	ImGui::Render();
	ImGui_ImplDX12_RenderDrawData(ImGui::GetDrawData(), GetGraphicsCommandList().Get());

ImGui_ImplDX12_Shutdown();
ImGui_ImplWin32_Shutdown();

void FIMGUIPipeline::Tick(float DeltaTime)
{
	bool show_demo_window = true;
	ImGui::ShowDemoWindow(&show_demo_window);//学习案例
	//ImGui::Begin("Log System");
	//ImGui::Text("asdioakd asd madm askld asd alsd masd .");
	//ImGui::SetWindowPos(ImVec2(0,0),ImGuiCond_Always);
	//ImGui::SetWindowSize(ImVec2(ImGui::GetIO().DisplaySize.x / 2.f, ImGui::GetIO().DisplaySize.y / 2.f));
	
	//ImGui::Checkbox("bHeight",&bClicked);
	//ImGui::SliderFloat("Hello",&fff,0.f,1.f);
	//ImGui::ColorEdit3("Color",(float*)&CCC);
	//ImGui::End();
}