Add visual samples.

4 files changed, 1166 insertions, 0 deletions

diff --git a/NvCloth/samples/SampleBase/ui/CommonUIController.cpp b/NvCloth/samples/SampleBase/ui/CommonUIController.cpp
new file mode 100644
index 0000000..0c0cac8
--- /dev/null
+++ b/NvCloth/samples/SampleBase/ui/CommonUIController.cpp
@@ -0,0 +1,467 @@
+/*
+* Copyright (c) 2008-2017, NVIDIA CORPORATION.  All rights reserved.
+*
+* NVIDIA CORPORATION and its licensors retain all intellectual property
+* and proprietary rights in and to this software, related documentation
+* and any modifications thereto.  Any use, reproduction, disclosure or
+* distribution of this software and related documentation without an express
+* license agreement from NVIDIA CORPORATION is strictly prohibited.
+*/
+
+#include "CommonUIController.h"
+
+#include "Renderer.h"
+#include "SceneController.h"
+#include "SampleController.h"
+#include "SampleProfiler.h"
+
+#include <imgui.h>
+#include "imgui_impl_dx11.h"
+#include "UIHelpers.h"
+
+#include <cstdio>
+#include <inttypes.h>
+
+
+inline float memorySizeOutput(const char*& prefix, float value)
+{
+	for (prefix = "\0\0k\0M\0G\0T\0P\0E"; value >= 1024 && *prefix != 'E'; value /= 1024, prefix += 2);
+	return value;
+}
+
+CommonUIController::CommonUIController()
+{
+}
+
+HRESULT CommonUIController::DeviceCreated(ID3D11Device* pDevice)
+{
+	DeviceManager* manager = GetDeviceManager();
+	ID3D11DeviceContext* pd3dDeviceContext;
+	pDevice->GetImmediateContext(&pd3dDeviceContext);
+	ImGui_ImplDX11_Init(manager->GetHWND(), pDevice, pd3dDeviceContext);
+	
+	ImGuiStyle& style = ImGui::GetStyle();
+	style.WindowRounding = 8.0f;
+	style.ScrollbarRounding = 8.0f;
+	style.FrameRounding = 8.0f;
+	//style.IndentSpacing = 20;
+	int mainColor[3] = { 110, 110, 110 }; // previous green one { 50, 110, 30 }
+	style.Colors[ImGuiCol_TitleBg]              = ImColor(mainColor[0], mainColor[1], mainColor[2], 62);
+	style.Colors[ImGuiCol_TitleBgCollapsed]     = ImColor(mainColor[0], mainColor[1], mainColor[2], 52);
+	style.Colors[ImGuiCol_TitleBgActive]        = ImColor(mainColor[0], mainColor[1], mainColor[2], 87);
+	style.Colors[ImGuiCol_Header]               = ImColor(mainColor[0], mainColor[1], mainColor[2], 52);
+	style.Colors[ImGuiCol_HeaderHovered]        = ImColor(mainColor[0], mainColor[1], mainColor[2], 92);
+	style.Colors[ImGuiCol_HeaderActive]         = ImColor(mainColor[0], mainColor[1], mainColor[2], 72);
+	style.Colors[ImGuiCol_ScrollbarBg]          = ImColor(mainColor[0], mainColor[1], mainColor[2], 12);
+	style.Colors[ImGuiCol_ScrollbarGrab]        = ImColor(mainColor[0], mainColor[1], mainColor[2], 52);
+	style.Colors[ImGuiCol_ScrollbarGrabHovered] = ImColor(mainColor[0], mainColor[1], mainColor[2], 92);
+	style.Colors[ImGuiCol_ScrollbarGrabActive]  = ImColor(mainColor[0], mainColor[1], mainColor[2], 72);
+	style.Colors[ImGuiCol_Button]               = ImColor(40, 100, 80, 30);
+	style.Colors[ImGuiCol_ButtonHovered]        = ImColor(40, 100, 80, 100);
+	style.Colors[ImGuiCol_ButtonActive]         = ImColor(40, 100, 80, 70);
+	style.Colors[ImGuiCol_PopupBg]				= ImColor(10, 23, 18, 230);
+	style.Colors[ImGuiCol_TextSelectedBg]		= ImColor(10, 23, 18, 180);
+	style.Colors[ImGuiCol_FrameBg]				= ImColor(70, 70, 70, 30);
+	style.Colors[ImGuiCol_FrameBgHovered]		= ImColor(70, 70, 70, 70);
+	style.Colors[ImGuiCol_FrameBgActive]		= ImColor(70, 70, 70, 50);
+	style.Colors[ImGuiCol_ComboBg]				= ImColor(20, 20, 20, 252);
+
+	return S_OK;
+}
+
+void CommonUIController::DeviceDestroyed()
+{
+	ImGui_ImplDX11_Shutdown();
+}
+
+extern LRESULT ImGui_ImplDX11_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
+
+LRESULT CommonUIController::MsgProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+	PX_UNUSED(hWnd);
+	PX_UNUSED(wParam);
+	PX_UNUSED(lParam);
+
+	ImGui_ImplDX11_WndProcHandler(hWnd, uMsg, wParam, lParam);
+
+	if (uMsg == WM_KEYDOWN && !ImGui::GetIO().WantCaptureKeyboard)
+	{
+		int iKeyPressed = static_cast<int>(wParam);
+		switch (iKeyPressed)
+		{
+			case 'P':
+			{
+				//getPhysXController().setPaused(!getPhysXController().isPaused());
+				break;
+			}
+			case 'O':
+			{
+				getRenderer().setWireframeMode(!getRenderer().getWireframeMode());
+				break;
+			}
+			case 'I':
+			{
+				//getBlastController().debugRenderMode = (BlastFamily::DebugRenderMode)(((int)getBlastController().debugRenderMode + 1) % BlastFamily::DebugRenderMode::DEBUG_RENDER_MODES_COUNT);
+				break;
+			}
+			case VK_F5:
+			{
+				getRenderer().reloadShaders();
+				break;
+			}
+			default:
+				break;
+		}
+	}
+
+	if (ImGui::GetIO().WantCaptureMouse)
+		return 0;
+
+	return 1;
+}
+
+void CommonUIController::Animate(double fElapsedTimeSeconds)
+{
+	m_dt = (float)fElapsedTimeSeconds;
+}
+
+void CommonUIController::Render(ID3D11Device*, ID3D11DeviceContext*, ID3D11RenderTargetView*, ID3D11DepthStencilView*)
+{
+	ImGui_ImplDX11_NewFrame();
+	drawUI();
+	ImGui::Render();
+}
+
+void CommonUIController::addDelayedCall(const char* title, const char* message, std::function<void()> func, float delay)
+{
+	DelayedCall call = { func, title, message, delay, delay };
+	m_delayedCalls.emplace(call);
+}
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//													IMGUI UI
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+
+void CommonUIController::drawUI()
+{
+	const float padding = 8.0f;
+	ImGui::SetNextWindowPos(ImVec2(padding, padding), ImGuiSetCond_Once/*ImGuiSetCond_FirstUseEver*/);
+	ImGui::SetNextWindowSize(ImVec2(420, getRenderer().getScreenHeight() - 2 * padding), ImGuiSetCond_Once/*ImGuiSetCond_FirstUseEver*/);
+	ImGui::SetNextWindowCollapsed(false, ImGuiSetCond_Once);
+	ImGui::Begin("New Shiny UI", 0, ImGuiWindowFlags_NoTitleBar);
+	{
+		ImGui::PushItemWidth(ImGui::GetWindowSize().x * 0.5f);
+
+		///////////////////////////////////////////////////////////////////////////////////////////
+		// Scene
+		///////////////////////////////////////////////////////////////////////////////////////////
+		if (ImGui::CollapsingHeader("Scene"))
+		{
+			getSceneController().drawUI();
+		}
+
+
+		///////////////////////////////////////////////////////////////////////////////////////////
+		// Stats
+		///////////////////////////////////////////////////////////////////////////////////////////
+		if (ImGui::CollapsingHeader("Stats"))
+		{
+			// FPS
+			double averageTime = GetDeviceManager()->GetAverageFrameTime();
+			float fps = (averageTime > 0) ? 1.0 / averageTime : 0.0;
+			float frameMs = 1000.0f / fps;
+			ImGui::Text("Frame Time %.3f ms (%.1f FPS)", frameMs, fps);
+
+			static PlotLinesInstance<> fpsPlot;
+			fpsPlot.plot("FPS", frameMs, "ms/frame", 0.0f, 100.0f);
+
+			// Render stats
+			ImGui::PushStyleColor(ImGuiCol_Text, ImColor(0xFF, 0x3B, 0xD8, 0xFF));
+			ImGui::Text("Draw Calls (Opaque/Transparent): %d/%d", getRenderer().getVisibleOpaqueRenderablesCount(), getRenderer().getVisibleTransparentRenderablesCount());
+			ImGui::PopStyleColor();
+
+#if NV_PROFILE
+			// Sample Profiler
+			static bool s_showProfilerWindow = false;
+			if (ImGui::Button("Code Profiler"))
+			{
+				s_showProfilerWindow = !s_showProfilerWindow;
+			}
+			if (s_showProfilerWindow)
+			{
+				drawCodeProfiler(&s_showProfilerWindow);
+			}
+#endif
+		}
+
+		///////////////////////////////////////////////////////////////////////////////////////////
+		// Application
+		///////////////////////////////////////////////////////////////////////////////////////////
+		if (ImGui::CollapsingHeader("Application"))
+		{
+			// Reload Shaders
+			if (ImGui::Button("Reload Shaders (F5)"))
+			{
+				getRenderer().reloadShaders();
+			}
+
+			/*// ImGui Test Window (just in case)
+			static bool s_showTestWindow = false;
+			if (ImGui::Button("ImGui Test Window"))
+			{
+				s_showTestWindow = !s_showTestWindow;
+			}
+			if (s_showTestWindow)
+			{
+				ImGui::ShowTestWindow();
+			}*/
+		}
+
+
+		///////////////////////////////////////////////////////////////////////////////////////////
+		// Debug Render
+		///////////////////////////////////////////////////////////////////////////////////////////
+		if (ImGui::CollapsingHeader("Debug Render"))
+		{
+			// WireFrame
+			bool wireFrameEnabled = getRenderer().getWireframeMode();
+			if (ImGui::Checkbox("WireFrame (O)", &wireFrameEnabled))
+			{
+				getRenderer().setWireframeMode(wireFrameEnabled);
+			}
+
+			// - - - - - - - -
+			ImGui::Spacing();
+		}
+
+
+		///////////////////////////////////////////////////////////////////////////////////////////
+		// Renderer
+		///////////////////////////////////////////////////////////////////////////////////////////
+		if (ImGui::CollapsingHeader("Renderer"))
+		{
+			getRenderer().drawUI();
+		}
+
+
+		///////////////////////////////////////////////////////////////////////////////////////////
+		// Hints
+		///////////////////////////////////////////////////////////////////////////////////////////
+		if (ImGui::CollapsingHeader("Hints / Help"))
+		{
+			ImGui::BulletText("Rotate camera - RMB");
+			ImGui::BulletText("Move camera - WASDQE(SHIFT)");
+			//ImGui::BulletText("Play/Pause - P");
+			ImGui::BulletText("Reload shaders - F5");
+			ImGui::BulletText("Wireframe - O");
+			//ImGui::BulletText("Restart - R");
+		}
+
+		ImGui::PopItemWidth();
+	}
+	ImGui::End();
+
+	///////////////////////////////////////////////////////////////////////////////////////////
+	// Mode Text
+	///////////////////////////////////////////////////////////////////////////////////////////
+	/*{
+		ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4());
+		ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0,0));
+
+		const char* text = "CENTERED TEXT, REMOVE ME";
+		ImVec2 size = ImGui::CalcTextSize(text);
+		ImGui::SetNextWindowPos(ImVec2((getRenderer().getScreenWidth() - size.x) / 2, 0));
+		ImGui::Begin("Mode Text", 0, ImGuiWindowFlags_NoInputs | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar);
+		ImGui::Text(text);
+		ImGui::End();
+
+		ImGui::PopStyleVar();
+		ImGui::PopStyleColor();
+	}*/
+
+	///////////////////////////////////////////////////////////////////////////////////////////
+	// FPS
+	///////////////////////////////////////////////////////////////////////////////////////////
+	{
+		ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4());
+		ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0, 0));
+
+		double averageTime = GetDeviceManager()->GetAverageFrameTime();
+		float fps = (averageTime > 0) ? 1.0 / averageTime : 0.0;
+		static char buf[32];
+		std::sprintf(buf, "%.1f FPS", fps);
+		ImVec2 size = ImGui::CalcTextSize(buf);
+
+		size.x += 20.0;
+		ImGui::SetNextWindowSize(size);
+		ImGui::SetNextWindowPos(ImVec2(getRenderer().getScreenWidth() - size.x, 0));
+		ImGui::Begin("FPS", 0, ImGuiWindowFlags_NoInputs | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar);
+		ImGui::Text(buf);
+		ImGui::End();
+
+		ImGui::PopStyleVar();
+		ImGui::PopStyleColor();
+	}
+
+	///////////////////////////////////////////////////////////////////////////////////////////
+	// Loading overlay
+	///////////////////////////////////////////////////////////////////////////////////////////
+	if (!m_delayedCalls.empty())
+	{
+		DelayedCall& call = m_delayedCalls.front();
+		if (call.delay > 0)
+		{
+			const int height = 50;
+			const char* message = call.message;
+			const float alpha =  PxClamp(lerp(0.0f, 1.0f, (call.delayTotal - call.delay) * 10.0f), 0.0f, 1.0f);
+
+			ImGui::PushStyleColor(ImGuiCol_WindowBg, ImColor(0, 0, 0, 200));
+			ImGui::PushStyleVar(ImGuiStyleVar_Alpha, alpha);
+			ImGui::SetNextWindowPosCenter();
+			ImVec2 size = ImGui::CalcTextSize(message);
+			int width = std::max<float>(200, size.x) + 50;
+			ImGui::SetNextWindowSize(ImVec2(width, height));
+			ImGui::Begin(call.title, 0, ImGuiWindowFlags_NoInputs | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar);
+			ImGui::SetCursorPos(ImVec2((width - size.x) * 0.5f, (height - size.y) * 0.5f));
+			ImGui::Text(message);
+			ImGui::End();
+			ImGui::PopStyleVar();
+			ImGui::PopStyleColor();
+
+			call.delay -= PxClamp(m_dt, 0.0f, 0.1f);
+		}
+		else
+		{
+			call.func();
+			m_delayedCalls.pop();
+		}
+	}
+}
+
+
+void CommonUIController::drawCodeProfiler(bool* open)
+{
+	ImGuiWindowFlags window_flags = 0;
+	const float padding = 8.0f;
+	const float width = 550;
+	const float height = 580;
+	ImGui::SetNextWindowPos(ImVec2(getRenderer().getScreenWidth() - width - padding, padding), ImGuiSetCond_Once/*ImGuiSetCond_FirstUseEver*/);
+	ImGui::SetNextWindowSize(ImVec2(width, height), ImGuiSetCond_Once);
+	if (!ImGui::Begin("Code Profiler", open, window_flags))
+	{
+		// Early out if the window is collapsed, as an optimization.
+		ImGui::End();
+		return;
+	}
+
+	///////////////////////////////////////////////////////////////////////////////////////////
+	// Control/Main Bar
+	///////////////////////////////////////////////////////////////////////////////////////////
+	{
+		if (ImGui::Button("Reset"))
+		{
+			PROFILER_INIT();
+		}
+		ImGui::SameLine();
+		if (ImGui::Button("Dump To File (profile.txt)"))
+		{
+			SampleProfilerDumpToFile("profile.txt");
+		}
+		ImGui::SameLine();
+		ImGui::Text("Profiler overhead: %2.3f ms", SampleProfilerGetOverhead().count() * 0.001f);
+	}
+
+	///////////////////////////////////////////////////////////////////////////////////////////
+	// Legend
+	///////////////////////////////////////////////////////////////////////////////////////////
+	{
+		ImGui::Spacing(); ImGui::Separator(); ImGui::Spacing();
+		ImGui::Text("Legend: name | calls | time | max time");
+		ImGui::Spacing(); ImGui::Separator(); ImGui::Spacing();
+	}
+
+	///////////////////////////////////////////////////////////////////////////////////////////
+	// Stats Tree
+	///////////////////////////////////////////////////////////////////////////////////////////
+	ImGui::SetNextTreeNodeOpen(true, ImGuiSetCond_Once);
+	float plotMS = 0.0f;
+	float plotMaxMS = 0.0f;
+	const char* plotName = nullptr;
+	if (ImGui::TreeNode("Root"))
+	{
+		auto treeIt = SampleProfilerCreateTreeIterator();
+		if (treeIt)
+		{
+			uint32_t depth = 1;
+			uint32_t openeDepth = 1;
+			while (!treeIt->isDone())
+			{
+				const auto data = treeIt->data();
+
+				while (data->depth < depth)
+				{
+					ImGui::TreePop();
+					depth--;
+				}
+
+				const uint32_t maxLen = 30;
+				auto hash = data->hash;
+				static uint64_t selectedNodeHash = 0;
+				if (selectedNodeHash == hash)
+				{
+					plotMS = data->time.count() * 0.001f;
+					plotMaxMS = data->maxTime.count() * 0.001f;
+					plotName = data->name;
+				}
+				if (ImGui::TreeNodeEx(data->name, data->hasChilds ? 0 : ImGuiTreeNodeFlags_Leaf, "%-*.*s | %d | %2.3f ms | %2.3f ms",
+					maxLen, maxLen, data->name, data->calls, data->time.count() * 0.001f, data->maxTime.count() * 0.001f))
+				{
+					depth++;
+					treeIt->next();
+				}
+				else
+				{
+					treeIt->next();
+					while (!treeIt->isDone() && treeIt->data()->depth > depth)
+						treeIt->next();
+				}
+
+				if (ImGui::IsItemClicked())
+				{
+					selectedNodeHash = hash;
+				}
+			}
+
+			while (depth > 0)
+			{
+				ImGui::TreePop();
+				depth--;
+			}
+
+			treeIt->release();
+		}
+		else
+		{
+			ImGui::Text("Profiler Is Broken. Begin/End Mismatch.");
+		}
+	}
+
+	///////////////////////////////////////////////////////////////////////////////////////////
+	// Selected Item Plot
+	///////////////////////////////////////////////////////////////////////////////////////////
+	{
+		ImGui::Spacing(); ImGui::Separator(); ImGui::Spacing();
+		if (plotName)
+		{
+			static PlotLinesInstance<> selectedNodePlot;
+			selectedNodePlot.plot("", plotMS, plotName, 0.0f, plotMaxMS);
+		}
+		else
+		{
+			ImGui::Text("Select item to plot.");
+		}
+	}
+
+	ImGui::End();
+}
\ No newline at end of file
diff --git a/NvCloth/samples/SampleBase/ui/CommonUIController.h b/NvCloth/samples/SampleBase/ui/CommonUIController.h
new file mode 100644
index 0000000..47953b7
--- /dev/null
+++ b/NvCloth/samples/SampleBase/ui/CommonUIController.h
@@ -0,0 +1,91 @@
+/*
+* Copyright (c) 2008-2017, NVIDIA CORPORATION.  All rights reserved.
+*
+* NVIDIA CORPORATION and its licensors retain all intellectual property
+* and proprietary rights in and to this software, related documentation
+* and any modifications thereto.  Any use, reproduction, disclosure or
+* distribution of this software and related documentation without an express
+* license agreement from NVIDIA CORPORATION is strictly prohibited.
+*/
+
+#ifndef COMMON_UI_CONTROLLER_H
+#define COMMON_UI_CONTROLLER_H
+
+#include "SampleManager.h"
+#include <DirectXMath.h>
+#include <string>
+#include <list>
+#include <queue>
+#include <functional>
+
+
+class Renderer;
+class PhysXController;
+class BlastController;
+
+
+class CommonUIController : public ISampleController
+{
+  public:
+	CommonUIController();
+	virtual ~CommonUIController() {};
+
+	virtual HRESULT DeviceCreated(ID3D11Device* pDevice);
+	virtual void DeviceDestroyed();
+	virtual LRESULT MsgProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
+	virtual void Animate(double fElapsedTimeSeconds);
+	virtual void Render(ID3D11Device*, ID3D11DeviceContext*, ID3D11RenderTargetView*, ID3D11DepthStencilView*);
+
+	void addDelayedCall(std::function<void()> func, const char* message)
+	{
+		addDelayedCall("PLEASE WAIT...", message, func);
+	}
+
+	void addPopupMessage(const char* title, const char* message, float duration = 2.f)
+	{
+		addDelayedCall(title, message, [] {}, duration);
+	}
+
+  private:
+	void addDelayedCall(const char* title, const char* message, std::function<void()> func, float delay = 0.1f);
+
+	void drawUI();
+	void drawCodeProfiler(bool*);
+
+
+	//////// used controllers ////////
+
+	Renderer& getRenderer() const
+	{
+		return getManager()->getRenderer();
+	}
+
+	SceneController& getSceneController() const
+	{
+		return getManager()->getSceneController();
+	}
+
+	SampleController& getSampleController() const
+	{
+		return getManager()->getSampleController();
+	}
+
+
+	//////// internal data ////////
+
+	struct DelayedCall
+	{
+		std::function<void()>	func;
+		const char*				title;
+		const char*				message;
+		float					delay;
+		float					delayTotal;
+	};
+
+	std::queue<DelayedCall>		m_delayedCalls;
+
+	float m_dt;
+
+};
+
+#endif
\ No newline at end of file
diff --git a/NvCloth/samples/SampleBase/ui/imgui_impl_dx11.cpp b/NvCloth/samples/SampleBase/ui/imgui_impl_dx11.cpp
new file mode 100644
index 0000000..11f66f0
--- /dev/null
+++ b/NvCloth/samples/SampleBase/ui/imgui_impl_dx11.cpp
@@ -0,0 +1,583 @@
+// ImGui Win32 + DirectX11 binding
+// In this binding, ImTextureID is used to store a 'ID3D11ShaderResourceView*' texture identifier. Read the FAQ about ImTextureID in imgui.cpp.
+
+// You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
+// If you use this binding you'll need to call 4 functions: ImGui_ImplXXXX_Init(), ImGui_ImplXXXX_NewFrame(), ImGui::Render() and ImGui_ImplXXXX_Shutdown().
+// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
+// https://github.com/ocornut/imgui
+
+#include <imgui.h>
+#include "imgui_impl_dx11.h"
+
+// DirectX
+#include <d3d11.h>
+#include <d3dcompiler.h>
+#define DIRECTINPUT_VERSION 0x0800
+#include <dinput.h>
+
+// Data
+static INT64                    g_Time = 0;
+static INT64                    g_TicksPerSecond = 0;
+
+static HWND                     g_hWnd = 0;
+static ID3D11Device*            g_pd3dDevice = NULL;
+static ID3D11DeviceContext*     g_pd3dDeviceContext = NULL;
+static ID3D11Buffer*            g_pVB = NULL;
+static ID3D11Buffer*            g_pIB = NULL;
+static ID3D10Blob *             g_pVertexShaderBlob = NULL;
+static ID3D11VertexShader*      g_pVertexShader = NULL;
+static ID3D11InputLayout*       g_pInputLayout = NULL;
+static ID3D11Buffer*            g_pVertexConstantBuffer = NULL;
+static ID3D10Blob *             g_pPixelShaderBlob = NULL;
+static ID3D11PixelShader*       g_pPixelShader = NULL;
+static ID3D11SamplerState*      g_pFontSampler = NULL;
+static ID3D11ShaderResourceView*g_pFontTextureView = NULL;
+static ID3D11RasterizerState*   g_pRasterizerState = NULL;
+static ID3D11BlendState*        g_pBlendState = NULL;
+static ID3D11DepthStencilState* g_pDepthStencilState = NULL;
+static int                      g_VertexBufferSize = 5000, g_IndexBufferSize = 10000;
+
+struct VERTEX_CONSTANT_BUFFER
+{
+    float        mvp[4][4];
+};
+
+// This is the main rendering function that you have to implement and provide to ImGui (via setting up 'RenderDrawListsFn' in the ImGuiIO structure)
+// If text or lines are blurry when integrating ImGui in your engine:
+// - in your Render function, try translating your projection matrix by (0.5f,0.5f) or (0.375f,0.375f)
+void ImGui_ImplDX11_RenderDrawLists(ImDrawData* draw_data)
+{
+    ID3D11DeviceContext* ctx = g_pd3dDeviceContext;
+
+    // Create and grow vertex/index buffers if needed
+    if (!g_pVB || g_VertexBufferSize < draw_data->TotalVtxCount)
+    {
+        if (g_pVB) { g_pVB->Release(); g_pVB = NULL; }
+        g_VertexBufferSize = draw_data->TotalVtxCount + 5000;
+        D3D11_BUFFER_DESC desc;
+        memset(&desc, 0, sizeof(D3D11_BUFFER_DESC));
+        desc.Usage = D3D11_USAGE_DYNAMIC;
+        desc.ByteWidth = g_VertexBufferSize * sizeof(ImDrawVert);
+        desc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
+        desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
+        desc.MiscFlags = 0;
+        if (g_pd3dDevice->CreateBuffer(&desc, NULL, &g_pVB) < 0)
+            return;
+    }
+    if (!g_pIB || g_IndexBufferSize < draw_data->TotalIdxCount)
+    {
+        if (g_pIB) { g_pIB->Release(); g_pIB = NULL; }
+        g_IndexBufferSize = draw_data->TotalIdxCount + 10000;
+        D3D11_BUFFER_DESC desc;
+        memset(&desc, 0, sizeof(D3D11_BUFFER_DESC));
+        desc.Usage = D3D11_USAGE_DYNAMIC;
+        desc.ByteWidth = g_IndexBufferSize * sizeof(ImDrawIdx);
+        desc.BindFlags = D3D11_BIND_INDEX_BUFFER;
+        desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
+        if (g_pd3dDevice->CreateBuffer(&desc, NULL, &g_pIB) < 0)
+            return;
+    }
+
+    // Copy and convert all vertices into a single contiguous buffer
+    D3D11_MAPPED_SUBRESOURCE vtx_resource, idx_resource;
+    if (ctx->Map(g_pVB, 0, D3D11_MAP_WRITE_DISCARD, 0, &vtx_resource) != S_OK)
+        return;
+    if (ctx->Map(g_pIB, 0, D3D11_MAP_WRITE_DISCARD, 0, &idx_resource) != S_OK)
+        return;
+    ImDrawVert* vtx_dst = (ImDrawVert*)vtx_resource.pData;
+    ImDrawIdx* idx_dst = (ImDrawIdx*)idx_resource.pData;
+    for (int n = 0; n < draw_data->CmdListsCount; n++)
+    {
+        const ImDrawList* cmd_list = draw_data->CmdLists[n];
+        memcpy(vtx_dst, &cmd_list->VtxBuffer[0], cmd_list->VtxBuffer.size() * sizeof(ImDrawVert));
+        memcpy(idx_dst, &cmd_list->IdxBuffer[0], cmd_list->IdxBuffer.size() * sizeof(ImDrawIdx));
+        vtx_dst += cmd_list->VtxBuffer.size();
+        idx_dst += cmd_list->IdxBuffer.size();
+    }
+    ctx->Unmap(g_pVB, 0);
+    ctx->Unmap(g_pIB, 0);
+
+    // Setup orthographic projection matrix into our constant buffer
+    {
+        D3D11_MAPPED_SUBRESOURCE mapped_resource;
+        if (ctx->Map(g_pVertexConstantBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mapped_resource) != S_OK)
+            return;
+        VERTEX_CONSTANT_BUFFER* constant_buffer = (VERTEX_CONSTANT_BUFFER*)mapped_resource.pData;
+        float L = 0.0f;
+        float R = ImGui::GetIO().DisplaySize.x;
+        float B = ImGui::GetIO().DisplaySize.y;
+        float T = 0.0f;
+        float mvp[4][4] =
+        {
+            { 2.0f/(R-L),   0.0f,           0.0f,       0.0f },
+            { 0.0f,         2.0f/(T-B),     0.0f,       0.0f },
+            { 0.0f,         0.0f,           0.5f,       0.0f },
+            { (R+L)/(L-R),  (T+B)/(B-T),    0.5f,       1.0f },
+        };
+        memcpy(&constant_buffer->mvp, mvp, sizeof(mvp));
+        ctx->Unmap(g_pVertexConstantBuffer, 0);
+    }
+
+    // Backup DX state that will be modified to restore it afterwards (unfortunately this is very ugly looking and verbose. Close your eyes!)
+    struct BACKUP_DX11_STATE
+    {
+        UINT                        ScissorRectsCount, ViewportsCount;
+        D3D11_RECT                  ScissorRects[D3D11_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE];
+        D3D11_VIEWPORT              Viewports[D3D11_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE];
+        ID3D11RasterizerState*      RS;
+        ID3D11BlendState*           BlendState;
+        FLOAT                       BlendFactor[4];
+        UINT                        SampleMask;
+        UINT                        StencilRef;
+        ID3D11DepthStencilState*    DepthStencilState;
+        ID3D11ShaderResourceView*   PSShaderResource;
+        ID3D11SamplerState*         PSSampler;
+        ID3D11PixelShader*          PS;
+        ID3D11VertexShader*         VS;
+        UINT                        PSInstancesCount, VSInstancesCount;
+        ID3D11ClassInstance*        PSInstances[256], *VSInstances[256];   // 256 is max according to PSSetShader documentation
+        D3D11_PRIMITIVE_TOPOLOGY    PrimitiveTopology;
+        ID3D11Buffer*               IndexBuffer, *VertexBuffer, *VSConstantBuffer;
+        UINT                        IndexBufferOffset, VertexBufferStride, VertexBufferOffset;
+        DXGI_FORMAT                 IndexBufferFormat;
+        ID3D11InputLayout*          InputLayout;
+    };
+    BACKUP_DX11_STATE old;
+    old.ScissorRectsCount = old.ViewportsCount = D3D11_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE;
+    ctx->RSGetScissorRects(&old.ScissorRectsCount, old.ScissorRects);
+    ctx->RSGetViewports(&old.ViewportsCount, old.Viewports);
+    ctx->RSGetState(&old.RS);
+    ctx->OMGetBlendState(&old.BlendState, old.BlendFactor, &old.SampleMask);
+    ctx->OMGetDepthStencilState(&old.DepthStencilState, &old.StencilRef);
+    ctx->PSGetShaderResources(0, 1, &old.PSShaderResource);
+    ctx->PSGetSamplers(0, 1, &old.PSSampler);
+    old.PSInstancesCount = old.VSInstancesCount = 256;
+    ctx->PSGetShader(&old.PS, old.PSInstances, &old.PSInstancesCount);
+    ctx->VSGetShader(&old.VS, old.VSInstances, &old.VSInstancesCount);
+    ctx->VSGetConstantBuffers(0, 1, &old.VSConstantBuffer);
+    ctx->IAGetPrimitiveTopology(&old.PrimitiveTopology);
+    ctx->IAGetIndexBuffer(&old.IndexBuffer, &old.IndexBufferFormat, &old.IndexBufferOffset);
+    ctx->IAGetVertexBuffers(0, 1, &old.VertexBuffer, &old.VertexBufferStride, &old.VertexBufferOffset);
+    ctx->IAGetInputLayout(&old.InputLayout);
+
+    // Setup viewport
+    D3D11_VIEWPORT vp;
+    memset(&vp, 0, sizeof(D3D11_VIEWPORT));
+    vp.Width = ImGui::GetIO().DisplaySize.x;
+    vp.Height = ImGui::GetIO().DisplaySize.y;
+    vp.MinDepth = 0.0f;
+    vp.MaxDepth = 1.0f;
+    vp.TopLeftX = vp.TopLeftY = 0.0f;
+    ctx->RSSetViewports(1, &vp);
+
+    // Bind shader and vertex buffers
+    unsigned int stride = sizeof(ImDrawVert);
+    unsigned int offset = 0;
+    ctx->IASetInputLayout(g_pInputLayout);
+    ctx->IASetVertexBuffers(0, 1, &g_pVB, &stride, &offset);
+    ctx->IASetIndexBuffer(g_pIB, sizeof(ImDrawIdx) == 2 ? DXGI_FORMAT_R16_UINT : DXGI_FORMAT_R32_UINT, 0);
+    ctx->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
+    ctx->VSSetShader(g_pVertexShader, NULL, 0);
+    ctx->VSSetConstantBuffers(0, 1, &g_pVertexConstantBuffer);
+    ctx->PSSetShader(g_pPixelShader, NULL, 0);
+    ctx->PSSetSamplers(0, 1, &g_pFontSampler);
+
+    // Setup render state
+    const float blend_factor[4] = { 0.f, 0.f, 0.f, 0.f };
+    ctx->OMSetBlendState(g_pBlendState, blend_factor, 0xffffffff);
+    ctx->OMSetDepthStencilState(g_pDepthStencilState, 0);
+    ctx->RSSetState(g_pRasterizerState);
+
+    // Render command lists
+    int vtx_offset = 0;
+    int idx_offset = 0;
+    for (int n = 0; n < draw_data->CmdListsCount; n++)
+    {
+        const ImDrawList* cmd_list = draw_data->CmdLists[n];
+        for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.size(); cmd_i++)
+        {
+            const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
+            if (pcmd->UserCallback)
+            {
+                pcmd->UserCallback(cmd_list, pcmd);
+            }
+            else
+            {
+                const D3D11_RECT r = { (LONG)pcmd->ClipRect.x, (LONG)pcmd->ClipRect.y, (LONG)pcmd->ClipRect.z, (LONG)pcmd->ClipRect.w };
+                ctx->PSSetShaderResources(0, 1, (ID3D11ShaderResourceView**)&pcmd->TextureId);
+                ctx->RSSetScissorRects(1, &r);
+                ctx->DrawIndexed(pcmd->ElemCount, idx_offset, vtx_offset);
+            }
+            idx_offset += pcmd->ElemCount;
+        }
+        vtx_offset += cmd_list->VtxBuffer.size();
+    }
+
+    // Restore modified DX state
+    ctx->RSSetScissorRects(old.ScissorRectsCount, old.ScissorRects);
+    ctx->RSSetViewports(old.ViewportsCount, old.Viewports);
+    ctx->RSSetState(old.RS); if (old.RS) old.RS->Release();
+    ctx->OMSetBlendState(old.BlendState, old.BlendFactor, old.SampleMask); if (old.BlendState) old.BlendState->Release();
+    ctx->OMSetDepthStencilState(old.DepthStencilState, old.StencilRef); if (old.DepthStencilState) old.DepthStencilState->Release();
+    ctx->PSSetShaderResources(0, 1, &old.PSShaderResource); if (old.PSShaderResource) old.PSShaderResource->Release();
+    ctx->PSSetSamplers(0, 1, &old.PSSampler); if (old.PSSampler) old.PSSampler->Release();
+    ctx->PSSetShader(old.PS, old.PSInstances, old.PSInstancesCount); if (old.PS) old.PS->Release();
+    for (UINT i = 0; i < old.PSInstancesCount; i++) if (old.PSInstances[i]) old.PSInstances[i]->Release();
+    ctx->VSSetShader(old.VS, old.VSInstances, old.VSInstancesCount); if (old.VS) old.VS->Release();
+    ctx->VSSetConstantBuffers(0, 1, &old.VSConstantBuffer); if (old.VSConstantBuffer) old.VSConstantBuffer->Release();
+    for (UINT i = 0; i < old.VSInstancesCount; i++) if (old.VSInstances[i]) old.VSInstances[i]->Release();
+    ctx->IASetPrimitiveTopology(old.PrimitiveTopology);
+    ctx->IASetIndexBuffer(old.IndexBuffer, old.IndexBufferFormat, old.IndexBufferOffset); if (old.IndexBuffer) old.IndexBuffer->Release();
+    ctx->IASetVertexBuffers(0, 1, &old.VertexBuffer, &old.VertexBufferStride, &old.VertexBufferOffset); if (old.VertexBuffer) old.VertexBuffer->Release();
+    ctx->IASetInputLayout(old.InputLayout); if (old.InputLayout) old.InputLayout->Release();
+}
+
+IMGUI_API LRESULT ImGui_ImplDX11_WndProcHandler(HWND, UINT msg, WPARAM wParam, LPARAM lParam)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    switch (msg)
+    {
+    case WM_LBUTTONDOWN:
+        io.MouseDown[0] = true;
+        return true;
+    case WM_LBUTTONUP:
+        io.MouseDown[0] = false;
+        return true;
+    case WM_RBUTTONDOWN:
+        io.MouseDown[1] = true;
+        return true;
+    case WM_RBUTTONUP:
+        io.MouseDown[1] = false;
+        return true;
+    case WM_MBUTTONDOWN:
+        io.MouseDown[2] = true;
+        return true;
+    case WM_MBUTTONUP:
+        io.MouseDown[2] = false;
+        return true;
+    case WM_MOUSEWHEEL:
+        io.MouseWheel += GET_WHEEL_DELTA_WPARAM(wParam) > 0 ? +1.0f : -1.0f;
+        return true;
+    case WM_MOUSEMOVE:
+        io.MousePos.x = (signed short)(lParam);
+        io.MousePos.y = (signed short)(lParam >> 16);
+        return true;
+    case WM_KEYDOWN:
+        if (wParam < 256)
+            io.KeysDown[wParam] = 1;
+        return true;
+    case WM_KEYUP:
+        if (wParam < 256)
+            io.KeysDown[wParam] = 0;
+        return true;
+    case WM_CHAR:
+        // You can also use ToAscii()+GetKeyboardState() to retrieve characters.
+        if (wParam > 0 && wParam < 0x10000)
+            io.AddInputCharacter((unsigned short)wParam);
+        return true;
+    }
+    return 0;
+}
+
+static void ImGui_ImplDX11_CreateFontsTexture()
+{
+    // Build texture atlas
+    ImGuiIO& io = ImGui::GetIO();
+    unsigned char* pixels;
+    int width, height;
+    io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
+
+    // Upload texture to graphics system
+    {
+        D3D11_TEXTURE2D_DESC desc;
+        ZeroMemory(&desc, sizeof(desc));
+        desc.Width = width;
+        desc.Height = height;
+        desc.MipLevels = 1;
+        desc.ArraySize = 1;
+        desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+        desc.SampleDesc.Count = 1;
+        desc.Usage = D3D11_USAGE_DEFAULT;
+        desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
+        desc.CPUAccessFlags = 0;
+
+        ID3D11Texture2D *pTexture = NULL;
+        D3D11_SUBRESOURCE_DATA subResource;
+        subResource.pSysMem = pixels;
+        subResource.SysMemPitch = desc.Width * 4;
+        subResource.SysMemSlicePitch = 0;
+        g_pd3dDevice->CreateTexture2D(&desc, &subResource, &pTexture);
+
+        // Create texture view
+        D3D11_SHADER_RESOURCE_VIEW_DESC srvDesc;
+        ZeroMemory(&srvDesc, sizeof(srvDesc));
+        srvDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+        srvDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
+        srvDesc.Texture2D.MipLevels = desc.MipLevels;
+        srvDesc.Texture2D.MostDetailedMip = 0;
+        g_pd3dDevice->CreateShaderResourceView(pTexture, &srvDesc, &g_pFontTextureView);
+        pTexture->Release();
+    }
+
+    // Store our identifier
+    io.Fonts->TexID = (void *)g_pFontTextureView;
+
+    // Create texture sampler
+    {
+        D3D11_SAMPLER_DESC desc;
+        ZeroMemory(&desc, sizeof(desc));
+        desc.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR;
+        desc.AddressU = D3D11_TEXTURE_ADDRESS_WRAP;
+        desc.AddressV = D3D11_TEXTURE_ADDRESS_WRAP;
+        desc.AddressW = D3D11_TEXTURE_ADDRESS_WRAP;
+        desc.MipLODBias = 0.f;
+        desc.ComparisonFunc = D3D11_COMPARISON_ALWAYS;
+        desc.MinLOD = 0.f;
+        desc.MaxLOD = 0.f;
+        g_pd3dDevice->CreateSamplerState(&desc, &g_pFontSampler);
+    }
+}
+
+bool    ImGui_ImplDX11_CreateDeviceObjects()
+{
+    if (!g_pd3dDevice)
+        return false;
+    if (g_pFontSampler)
+        ImGui_ImplDX11_InvalidateDeviceObjects();
+
+    // By using D3DCompile() from <d3dcompiler.h> / d3dcompiler.lib, we introduce a dependency to a given version of d3dcompiler_XX.dll (see D3DCOMPILER_DLL_A)
+    // If you would like to use this DX11 sample code but remove this dependency you can: 
+    //  1) compile once, save the compiled shader blobs into a file or source code and pass them to CreateVertexShader()/CreatePixelShader() [prefered solution]
+    //  2) use code to detect any version of the DLL and grab a pointer to D3DCompile from the DLL. 
+    // See https://github.com/ocornut/imgui/pull/638 for sources and details.
+
+    // Create the vertex shader
+    {
+        static const char* vertexShader =
+            "cbuffer vertexBuffer : register(b0) \
+            {\
+            float4x4 ProjectionMatrix; \
+            };\
+            struct VS_INPUT\
+            {\
+            float2 pos : POSITION;\
+            float4 col : COLOR0;\
+            float2 uv  : TEXCOORD0;\
+            };\
+            \
+            struct PS_INPUT\
+            {\
+            float4 pos : SV_POSITION;\
+            float4 col : COLOR0;\
+            float2 uv  : TEXCOORD0;\
+            };\
+            \
+            PS_INPUT main(VS_INPUT input)\
+            {\
+            PS_INPUT output;\
+            output.pos = mul( ProjectionMatrix, float4(input.pos.xy, 0.f, 1.f));\
+            output.col = input.col;\
+            output.uv  = input.uv;\
+            return output;\
+            }";
+
+        D3DCompile(vertexShader, strlen(vertexShader), NULL, NULL, NULL, "main", "vs_4_0", 0, 0, &g_pVertexShaderBlob, NULL);
+        if (g_pVertexShaderBlob == NULL) // NB: Pass ID3D10Blob* pErrorBlob to D3DCompile() to get error showing in (const char*)pErrorBlob->GetBufferPointer(). Make sure to Release() the blob!
+            return false;
+        if (g_pd3dDevice->CreateVertexShader((DWORD*)g_pVertexShaderBlob->GetBufferPointer(), g_pVertexShaderBlob->GetBufferSize(), NULL, &g_pVertexShader) != S_OK)
+            return false;
+
+        // Create the input layout
+        D3D11_INPUT_ELEMENT_DESC local_layout[] = {
+            { "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT,   0, (size_t)(&((ImDrawVert*)0)->pos), D3D11_INPUT_PER_VERTEX_DATA, 0 },
+            { "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT,   0, (size_t)(&((ImDrawVert*)0)->uv),  D3D11_INPUT_PER_VERTEX_DATA, 0 },
+            { "COLOR",    0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, (size_t)(&((ImDrawVert*)0)->col), D3D11_INPUT_PER_VERTEX_DATA, 0 },
+        };
+        if (g_pd3dDevice->CreateInputLayout(local_layout, 3, g_pVertexShaderBlob->GetBufferPointer(), g_pVertexShaderBlob->GetBufferSize(), &g_pInputLayout) != S_OK)
+            return false;
+
+        // Create the constant buffer
+        {
+            D3D11_BUFFER_DESC desc;
+            desc.ByteWidth = sizeof(VERTEX_CONSTANT_BUFFER);
+            desc.Usage = D3D11_USAGE_DYNAMIC;
+            desc.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
+            desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
+            desc.MiscFlags = 0;
+            g_pd3dDevice->CreateBuffer(&desc, NULL, &g_pVertexConstantBuffer);
+        }
+    }
+
+    // Create the pixel shader
+    {
+        static const char* pixelShader =
+            "struct PS_INPUT\
+            {\
+            float4 pos : SV_POSITION;\
+            float4 col : COLOR0;\
+            float2 uv  : TEXCOORD0;\
+            };\
+            sampler sampler0;\
+            Texture2D texture0;\
+            \
+            float4 main(PS_INPUT input) : SV_Target\
+            {\
+            float4 out_col = input.col * texture0.Sample(sampler0, input.uv); \
+            return out_col; \
+            }";
+
+        D3DCompile(pixelShader, strlen(pixelShader), NULL, NULL, NULL, "main", "ps_4_0", 0, 0, &g_pPixelShaderBlob, NULL);
+        if (g_pPixelShaderBlob == NULL)  // NB: Pass ID3D10Blob* pErrorBlob to D3DCompile() to get error showing in (const char*)pErrorBlob->GetBufferPointer(). Make sure to Release() the blob!
+            return false;
+        if (g_pd3dDevice->CreatePixelShader((DWORD*)g_pPixelShaderBlob->GetBufferPointer(), g_pPixelShaderBlob->GetBufferSize(), NULL, &g_pPixelShader) != S_OK)
+            return false;
+    }
+
+    // Create the blending setup
+    {
+        D3D11_BLEND_DESC desc;
+        ZeroMemory(&desc, sizeof(desc));
+        desc.AlphaToCoverageEnable = false;
+        desc.RenderTarget[0].BlendEnable = true;
+        desc.RenderTarget[0].SrcBlend = D3D11_BLEND_SRC_ALPHA;
+        desc.RenderTarget[0].DestBlend = D3D11_BLEND_INV_SRC_ALPHA;
+        desc.RenderTarget[0].BlendOp = D3D11_BLEND_OP_ADD;
+        desc.RenderTarget[0].SrcBlendAlpha = D3D11_BLEND_INV_SRC_ALPHA;
+        desc.RenderTarget[0].DestBlendAlpha = D3D11_BLEND_ZERO;
+        desc.RenderTarget[0].BlendOpAlpha = D3D11_BLEND_OP_ADD;
+        desc.RenderTarget[0].RenderTargetWriteMask = D3D11_COLOR_WRITE_ENABLE_ALL;
+        g_pd3dDevice->CreateBlendState(&desc, &g_pBlendState);
+    }
+
+    // Create the rasterizer state
+    {
+        D3D11_RASTERIZER_DESC desc;
+        ZeroMemory(&desc, sizeof(desc));
+        desc.FillMode = D3D11_FILL_SOLID;
+        desc.CullMode = D3D11_CULL_NONE;
+        desc.ScissorEnable = true;
+        desc.DepthClipEnable = true;
+        g_pd3dDevice->CreateRasterizerState(&desc, &g_pRasterizerState);
+    }
+
+    // Create depth-stencil State
+    {
+        D3D11_DEPTH_STENCIL_DESC desc;
+        ZeroMemory(&desc, sizeof(desc));
+        desc.DepthEnable = false;
+        desc.DepthWriteMask = D3D11_DEPTH_WRITE_MASK_ALL;
+        desc.DepthFunc = D3D11_COMPARISON_ALWAYS;
+        desc.StencilEnable = false;
+        desc.FrontFace.StencilFailOp = desc.FrontFace.StencilDepthFailOp = desc.FrontFace.StencilPassOp = D3D11_STENCIL_OP_KEEP;
+        desc.FrontFace.StencilFunc = D3D11_COMPARISON_ALWAYS;
+        desc.BackFace = desc.FrontFace;
+        g_pd3dDevice->CreateDepthStencilState(&desc, &g_pDepthStencilState);
+    }
+
+    ImGui_ImplDX11_CreateFontsTexture();
+
+    return true;
+}
+
+void    ImGui_ImplDX11_InvalidateDeviceObjects()
+{
+    if (!g_pd3dDevice)
+        return;
+
+    if (g_pFontSampler) { g_pFontSampler->Release(); g_pFontSampler = NULL; }
+    if (g_pFontTextureView) { g_pFontTextureView->Release(); g_pFontTextureView = NULL; ImGui::GetIO().Fonts->TexID = 0; }
+    if (g_pIB) { g_pIB->Release(); g_pIB = NULL; }
+    if (g_pVB) { g_pVB->Release(); g_pVB = NULL; }
+
+    if (g_pBlendState) { g_pBlendState->Release(); g_pBlendState = NULL; }
+    if (g_pDepthStencilState) { g_pDepthStencilState->Release(); g_pDepthStencilState = NULL; }
+    if (g_pRasterizerState) { g_pRasterizerState->Release(); g_pRasterizerState = NULL; }
+    if (g_pPixelShader) { g_pPixelShader->Release(); g_pPixelShader = NULL; }
+    if (g_pPixelShaderBlob) { g_pPixelShaderBlob->Release(); g_pPixelShaderBlob = NULL; }
+    if (g_pVertexConstantBuffer) { g_pVertexConstantBuffer->Release(); g_pVertexConstantBuffer = NULL; }
+    if (g_pInputLayout) { g_pInputLayout->Release(); g_pInputLayout = NULL; }
+    if (g_pVertexShader) { g_pVertexShader->Release(); g_pVertexShader = NULL; }
+    if (g_pVertexShaderBlob) { g_pVertexShaderBlob->Release(); g_pVertexShaderBlob = NULL; }
+}
+
+bool    ImGui_ImplDX11_Init(void* hwnd, ID3D11Device* device, ID3D11DeviceContext* device_context)
+{
+    g_hWnd = (HWND)hwnd;
+    g_pd3dDevice = device;
+    g_pd3dDeviceContext = device_context;
+
+    if (!QueryPerformanceFrequency((LARGE_INTEGER *)&g_TicksPerSecond))
+        return false;
+    if (!QueryPerformanceCounter((LARGE_INTEGER *)&g_Time))
+        return false;
+
+    ImGuiIO& io = ImGui::GetIO();
+    io.KeyMap[ImGuiKey_Tab] = VK_TAB;                       // Keyboard mapping. ImGui will use those indices to peek into the io.KeyDown[] array that we will update during the application lifetime.
+    io.KeyMap[ImGuiKey_LeftArrow] = VK_LEFT;
+    io.KeyMap[ImGuiKey_RightArrow] = VK_RIGHT;
+    io.KeyMap[ImGuiKey_UpArrow] = VK_UP;
+    io.KeyMap[ImGuiKey_DownArrow] = VK_DOWN;
+    io.KeyMap[ImGuiKey_PageUp] = VK_PRIOR;
+    io.KeyMap[ImGuiKey_PageDown] = VK_NEXT;
+    io.KeyMap[ImGuiKey_Home] = VK_HOME;
+    io.KeyMap[ImGuiKey_End] = VK_END;
+    io.KeyMap[ImGuiKey_Delete] = VK_DELETE;
+    io.KeyMap[ImGuiKey_Backspace] = VK_BACK;
+    io.KeyMap[ImGuiKey_Enter] = VK_RETURN;
+    io.KeyMap[ImGuiKey_Escape] = VK_ESCAPE;
+    io.KeyMap[ImGuiKey_A] = 'A';
+    io.KeyMap[ImGuiKey_C] = 'C';
+    io.KeyMap[ImGuiKey_V] = 'V';
+    io.KeyMap[ImGuiKey_X] = 'X';
+    io.KeyMap[ImGuiKey_Y] = 'Y';
+    io.KeyMap[ImGuiKey_Z] = 'Z';
+
+    io.RenderDrawListsFn = ImGui_ImplDX11_RenderDrawLists;  // Alternatively you can set this to NULL and call ImGui::GetDrawData() after ImGui::Render() to get the same ImDrawData pointer.
+    io.ImeWindowHandle = g_hWnd;
+
+    return true;
+}
+
+void ImGui_ImplDX11_Shutdown()
+{
+    ImGui_ImplDX11_InvalidateDeviceObjects();
+    ImGui::Shutdown();
+    g_pd3dDevice = NULL;
+    g_pd3dDeviceContext = NULL;
+    g_hWnd = (HWND)0;
+}
+
+void ImGui_ImplDX11_NewFrame()
+{
+    if (!g_pFontSampler)
+        ImGui_ImplDX11_CreateDeviceObjects();
+
+    ImGuiIO& io = ImGui::GetIO();
+
+    // Setup display size (every frame to accommodate for window resizing)
+    RECT rect;
+    GetClientRect(g_hWnd, &rect);
+    io.DisplaySize = ImVec2((float)(rect.right - rect.left), (float)(rect.bottom - rect.top));
+
+    // Setup time step
+    INT64 current_time;
+    QueryPerformanceCounter((LARGE_INTEGER *)&current_time);
+    io.DeltaTime = (float)(current_time - g_Time) / g_TicksPerSecond;
+    g_Time = current_time;
+
+    // Read keyboard modifiers inputs
+    io.KeyCtrl = (GetKeyState(VK_CONTROL) & 0x8000) != 0;
+    io.KeyShift = (GetKeyState(VK_SHIFT) & 0x8000) != 0;
+    io.KeyAlt = (GetKeyState(VK_MENU) & 0x8000) != 0;
+    io.KeySuper = false;
+    // io.KeysDown : filled by WM_KEYDOWN/WM_KEYUP events
+    // io.MousePos : filled by WM_MOUSEMOVE events
+    // io.MouseDown : filled by WM_*BUTTON* events
+    // io.MouseWheel : filled by WM_MOUSEWHEEL events
+
+    // Hide OS mouse cursor if ImGui is drawing it
+    SetCursor(io.MouseDrawCursor ? NULL : LoadCursor(NULL, IDC_ARROW));
+
+    // Start the frame
+    ImGui::NewFrame();
+}
diff --git a/NvCloth/samples/SampleBase/ui/imgui_impl_dx11.h b/NvCloth/samples/SampleBase/ui/imgui_impl_dx11.h
new file mode 100644
index 0000000..7d6f710
--- /dev/null
+++ b/NvCloth/samples/SampleBase/ui/imgui_impl_dx11.h
@@ -0,0 +1,25 @@
+// ImGui Win32 + DirectX11 binding
+// In this binding, ImTextureID is used to store a 'ID3D11ShaderResourceView*' texture identifier. Read the FAQ about ImTextureID in imgui.cpp.
+
+// You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
+// If you use this binding you'll need to call 4 functions: ImGui_ImplXXXX_Init(), ImGui_ImplXXXX_NewFrame(), ImGui::Render() and ImGui_ImplXXXX_Shutdown().
+// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
+// https://github.com/ocornut/imgui
+
+struct ID3D11Device;
+struct ID3D11DeviceContext;
+
+IMGUI_API bool        ImGui_ImplDX11_Init(void* hwnd, ID3D11Device* device, ID3D11DeviceContext* device_context);
+IMGUI_API void        ImGui_ImplDX11_Shutdown();
+IMGUI_API void        ImGui_ImplDX11_NewFrame();
+
+// Use if you want to reset your rendering device without losing ImGui state.
+IMGUI_API void        ImGui_ImplDX11_InvalidateDeviceObjects();
+IMGUI_API bool        ImGui_ImplDX11_CreateDeviceObjects();
+
+// Handler for Win32 messages, update mouse/keyboard data.
+// You may or not need this for your implementation, but it can serve as reference for handling inputs.
+// Commented out to avoid dragging dependencies on <windows.h> types. You can copy the extern declaration in your code.
+/*
+IMGUI_API LRESULT   ImGui_ImplDX11_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
+*/