more vks, stupid mutlistep build, and imgui

7 files changed, 1049 insertions, 0 deletions

diff --git a/lib/imgui-1.90.7/examples/example_apple_metal/README.md b/lib/imgui-1.90.7/examples/example_apple_metal/README.md
new file mode 100644
index 0000000..48a2b57
--- /dev/null
+++ b/lib/imgui-1.90.7/examples/example_apple_metal/README.md
@@ -0,0 +1,10 @@
+# iOS / OSX Metal example
+
+## Introduction
+
+This example shows how to integrate Dear ImGui with Metal. It is based on the "cross-platform" game template provided with Xcode as of Xcode 9.
+
+Consider basing your work off the example_glfw_metal/ or example_sdl2_metal/ examples. They are better supported and will be portable unlike this one.
+
+
+
diff --git a/lib/imgui-1.90.7/examples/example_apple_metal/example_apple_metal.xcodeproj/project.pbxproj b/lib/imgui-1.90.7/examples/example_apple_metal/example_apple_metal.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..4bb4fc2
--- /dev/null
+++ b/lib/imgui-1.90.7/examples/example_apple_metal/example_apple_metal.xcodeproj/project.pbxproj
@@ -0,0 +1,503 @@
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+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				MTL_ENABLE_DEBUG_INFO = YES;
+				ONLY_ACTIVE_ARCH = YES;
+			};
+			name = Debug;
+		};
+		8307E7EF20E9F9C900473790 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				MTL_ENABLE_DEBUG_INFO = NO;
+			};
+			name = Release;
+		};
+		8307E7F120E9F9C900473790 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				INFOPLIST_FILE = "$(SRCROOT)/iOS/Info-iOS.plist";
+				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
+				PRODUCT_BUNDLE_IDENTIFIER = "org.imgui.example.apple-metal-ios";
+				PRODUCT_NAME = example_apple_metal;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				USER_HEADER_SEARCH_PATHS = "$(SRCROOT)/../../**";
+			};
+			name = Debug;
+		};
+		8307E7F220E9F9C900473790 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				INFOPLIST_FILE = "$(SRCROOT)/iOS/Info-iOS.plist";
+				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
+				PRODUCT_BUNDLE_IDENTIFIER = "org.imgui.example.apple-metal-ios";
+				PRODUCT_NAME = example_apple_metal;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				USER_HEADER_SEARCH_PATHS = "$(SRCROOT)/../../**";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		8307E7F420E9F9C900473790 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_IDENTITY = "-";
+				CODE_SIGN_STYLE = Automatic;
+				COMBINE_HIDPI_IMAGES = YES;
+				DEVELOPMENT_TEAM = "";
+				INFOPLIST_FILE = "$(SRCROOT)/macOS/Info-macOS.plist";
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks";
+				MACOSX_DEPLOYMENT_TARGET = 10.12;
+				PRODUCT_BUNDLE_IDENTIFIER = "org.imgui.example.apple-metal-macos";
+				PRODUCT_NAME = example_apple_metal;
+				SDKROOT = macosx;
+				USER_HEADER_SEARCH_PATHS = "$(SRCROOT)/../../**";
+			};
+			name = Debug;
+		};
+		8307E7F520E9F9C900473790 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_IDENTITY = "-";
+				CODE_SIGN_STYLE = Automatic;
+				COMBINE_HIDPI_IMAGES = YES;
+				DEVELOPMENT_TEAM = "";
+				INFOPLIST_FILE = "$(SRCROOT)/macOS/Info-macOS.plist";
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks";
+				MACOSX_DEPLOYMENT_TARGET = 10.12;
+				PRODUCT_BUNDLE_IDENTIFIER = "org.imgui.example.apple-metal-macos";
+				PRODUCT_NAME = example_apple_metal;
+				SDKROOT = macosx;
+				USER_HEADER_SEARCH_PATHS = "$(SRCROOT)/../../**";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		8307E7B920E9F9C700473790 /* Build configuration list for PBXProject "example_apple_metal" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				8307E7EE20E9F9C900473790 /* Debug */,
+				8307E7EF20E9F9C900473790 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		8307E7F020E9F9C900473790 /* Build configuration list for PBXNativeTarget "example_apple_metal_ios" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				8307E7F120E9F9C900473790 /* Debug */,
+				8307E7F220E9F9C900473790 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		8307E7F320E9F9C900473790 /* Build configuration list for PBXNativeTarget "example_apple_metal_macos" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				8307E7F420E9F9C900473790 /* Debug */,
+				8307E7F520E9F9C900473790 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 8307E7B620E9F9C700473790 /* Project object */;
+}
diff --git a/lib/imgui-1.90.7/examples/example_apple_metal/iOS/Info-iOS.plist b/lib/imgui-1.90.7/examples/example_apple_metal/iOS/Info-iOS.plist
new file mode 100644
index 0000000..93ef078
--- /dev/null
+++ b/lib/imgui-1.90.7/examples/example_apple_metal/iOS/Info-iOS.plist
@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>imgui</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+		<string>metal</string>
+	</array>
+	<key>UIRequiresFullScreen</key>
+	<true/>
+	<key>UIStatusBarHidden</key>
+	<true/>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/lib/imgui-1.90.7/examples/example_apple_metal/iOS/LaunchScreen.storyboard b/lib/imgui-1.90.7/examples/example_apple_metal/iOS/LaunchScreen.storyboard
new file mode 100644
index 0000000..12c52cf
--- /dev/null
+++ b/lib/imgui-1.90.7/examples/example_apple_metal/iOS/LaunchScreen.storyboard
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="17156" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <device id="retina6_1" orientation="portrait" appearance="light"/>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="17125"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="414" height="896"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <viewLayoutGuide key="safeArea" id="Bcu-3y-fUS"/>
+                        <color key="backgroundColor" red="0.27843137254901962" green="0.36078431372549019" blue="0.50196078431372548" alpha="1" colorSpace="custom" customColorSpace="displayP3"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/lib/imgui-1.90.7/examples/example_apple_metal/macOS/Info-macOS.plist b/lib/imgui-1.90.7/examples/example_apple_metal/macOS/Info-macOS.plist
new file mode 100644
index 0000000..6f4a2b2
--- /dev/null
+++ b/lib/imgui-1.90.7/examples/example_apple_metal/macOS/Info-macOS.plist
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIconFile</key>
+	<string></string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>imgui</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSMinimumSystemVersion</key>
+	<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
+	<key>NSMainStoryboardFile</key>
+	<string>MainMenu</string>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+</dict>
+</plist>
diff --git a/lib/imgui-1.90.7/examples/example_apple_metal/macOS/MainMenu.storyboard b/lib/imgui-1.90.7/examples/example_apple_metal/macOS/MainMenu.storyboard
new file mode 100644
index 0000000..38ad432
--- /dev/null
+++ b/lib/imgui-1.90.7/examples/example_apple_metal/macOS/MainMenu.storyboard
@@ -0,0 +1,93 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.Cocoa.Storyboard.XIB" version="3.0" toolsVersion="17156" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES">
+    <dependencies>
+        <deployment identifier="macosx"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="17156"/>
+    </dependencies>
+    <scenes>
+        <!--Application-->
+        <scene sceneID="JPo-4y-FX3">
+            <objects>
+                <application id="hnw-xV-0zn" sceneMemberID="viewController">
+                    <menu key="mainMenu" title="Main Menu" systemMenu="main" id="AYu-sK-qS6">
+                        <items>
+                            <menuItem title="ImGui" id="1Xt-HY-uBw">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="ImGui" systemMenu="apple" id="uQy-DD-JDr">
+                                    <items>
+                                        <menuItem title="Services" id="NMo-om-nkz">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <menu key="submenu" title="Services" systemMenu="services" id="hz9-B4-Xy5"/>
+                                        </menuItem>
+                                        <menuItem isSeparatorItem="YES" id="4je-JR-u6R"/>
+                                        <menuItem title="Hide" keyEquivalent="h" id="Olw-nP-bQN">
+                                            <connections>
+                                                <action selector="hide:" target="Ady-hI-5gd" id="PnN-Uc-m68"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Hide Others" keyEquivalent="h" id="Vdr-fp-XzO">
+                                            <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                            <connections>
+                                                <action selector="hideOtherApplications:" target="Ady-hI-5gd" id="VT4-aY-XCT"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Show All" id="Kd2-mp-pUS">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="unhideAllApplications:" target="Ady-hI-5gd" id="Dhg-Le-xox"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem isSeparatorItem="YES" id="kCx-OE-vgT"/>
+                                        <menuItem title="Quit" keyEquivalent="q" id="4sb-4s-VLi">
+                                            <connections>
+                                                <action selector="terminate:" target="Ady-hI-5gd" id="Te7-pn-YzF"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="View" id="H8h-7b-M4v">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="View" id="HyV-fh-RgO">
+                                    <items>
+                                        <menuItem title="Enter Full Screen" keyEquivalent="f" id="4J7-dP-txa">
+                                            <modifierMask key="keyEquivalentModifierMask" control="YES" command="YES"/>
+                                            <connections>
+                                                <action selector="toggleFullScreen:" target="Ady-hI-5gd" id="dU3-MA-1Rq"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Window" id="aUF-d1-5bR">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Window" systemMenu="window" id="Td7-aD-5lo">
+                                    <items>
+                                        <menuItem title="Minimize" keyEquivalent="m" id="OY7-WF-poV">
+                                            <connections>
+                                                <action selector="performMiniaturize:" target="Ady-hI-5gd" id="VwT-WD-YPe"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Zoom" id="R4o-n2-Eq4">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="performZoom:" target="Ady-hI-5gd" id="DIl-cC-cCs"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                        </items>
+                    </menu>
+                    <connections>
+                        <outlet property="delegate" destination="Voe-Tx-rLC" id="PrD-fu-P6m"/>
+                    </connections>
+                </application>
+                <customObject id="Voe-Tx-rLC" customClass="AppDelegate"/>
+                <customObject id="YLy-65-1bz" customClass="NSFontManager"/>
+                <customObject id="Ady-hI-5gd" userLabel="First Responder" customClass="NSResponder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="-362" y="-38"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/lib/imgui-1.90.7/examples/example_apple_metal/main.mm b/lib/imgui-1.90.7/examples/example_apple_metal/main.mm
new file mode 100644
index 0000000..109ef61
--- /dev/null
+++ b/lib/imgui-1.90.7/examples/example_apple_metal/main.mm
@@ -0,0 +1,337 @@
+// Dear ImGui: standalone example application for OSX + Metal.
+
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#import <Foundation/Foundation.h>
+
+#if TARGET_OS_OSX
+#import <Cocoa/Cocoa.h>
+#else
+#import <UIKit/UIKit.h>
+#endif
+
+#import <Metal/Metal.h>
+#import <MetalKit/MetalKit.h>
+
+#include "imgui.h"
+#include "imgui_impl_metal.h"
+#if TARGET_OS_OSX
+#include "imgui_impl_osx.h"
+@interface AppViewController : NSViewController<NSWindowDelegate>
+@end
+#else
+@interface AppViewController : UIViewController
+@end
+#endif
+
+@interface AppViewController () <MTKViewDelegate>
+@property (nonatomic, readonly) MTKView *mtkView;
+@property (nonatomic, strong) id <MTLDevice> device;
+@property (nonatomic, strong) id <MTLCommandQueue> commandQueue;
+@end
+
+//-----------------------------------------------------------------------------------
+// AppViewController
+//-----------------------------------------------------------------------------------
+
+@implementation AppViewController
+
+-(instancetype)initWithNibName:(nullable NSString *)nibNameOrNil bundle:(nullable NSBundle *)nibBundleOrNil
+{
+    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
+
+    _device = MTLCreateSystemDefaultDevice();
+    _commandQueue = [_device newCommandQueue];
+
+    if (!self.device)
+    {
+        NSLog(@"Metal is not supported");
+        abort();
+    }
+
+    // Setup Dear ImGui context
+    // FIXME: This example doesn't have proper cleanup...
+    IMGUI_CHECKVERSION();
+    ImGui::CreateContext();
+    ImGuiIO& io = ImGui::GetIO(); (void)io;
+    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;     // Enable Keyboard Controls
+    io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;      // Enable Gamepad Controls
+
+    // Setup Dear ImGui style
+    ImGui::StyleColorsDark();
+    //ImGui::StyleColorsLight();
+
+    // Setup Renderer backend
+    ImGui_ImplMetal_Init(_device);
+
+    // Load Fonts
+    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
+    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
+    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
+    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
+    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
+    //IM_ASSERT(font != nullptr);
+
+    return self;
+}
+
+-(MTKView *)mtkView
+{
+    return (MTKView *)self.view;
+}
+
+-(void)loadView
+{
+    self.view = [[MTKView alloc] initWithFrame:CGRectMake(0, 0, 1200, 720)];
+}
+
+-(void)viewDidLoad
+{
+    [super viewDidLoad];
+
+    self.mtkView.device = self.device;
+    self.mtkView.delegate = self;
+
+#if TARGET_OS_OSX
+    ImGui_ImplOSX_Init(self.view);
+    [NSApp activateIgnoringOtherApps:YES];
+#endif
+}
+
+-(void)drawInMTKView:(MTKView*)view
+{
+    ImGuiIO& io = ImGui::GetIO();
+    io.DisplaySize.x = view.bounds.size.width;
+    io.DisplaySize.y = view.bounds.size.height;
+
+#if TARGET_OS_OSX
+    CGFloat framebufferScale = view.window.screen.backingScaleFactor ?: NSScreen.mainScreen.backingScaleFactor;
+#else
+    CGFloat framebufferScale = view.window.screen.scale ?: UIScreen.mainScreen.scale;
+#endif
+    io.DisplayFramebufferScale = ImVec2(framebufferScale, framebufferScale);
+
+    id<MTLCommandBuffer> commandBuffer = [self.commandQueue commandBuffer];
+
+    MTLRenderPassDescriptor* renderPassDescriptor = view.currentRenderPassDescriptor;
+    if (renderPassDescriptor == nil)
+    {
+        [commandBuffer commit];
+		return;
+    }
+
+    // Start the Dear ImGui frame
+    ImGui_ImplMetal_NewFrame(renderPassDescriptor);
+#if TARGET_OS_OSX
+    ImGui_ImplOSX_NewFrame(view);
+#endif
+    ImGui::NewFrame();
+
+    // Our state (make them static = more or less global) as a convenience to keep the example terse.
+    static bool show_demo_window = true;
+    static bool show_another_window = false;
+    static ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
+
+    // 1. Show the big demo window (Most of the sample code is in ImGui::ShowDemoWindow()! You can browse its code to learn more about Dear ImGui!).
+    if (show_demo_window)
+        ImGui::ShowDemoWindow(&show_demo_window);
+
+    // 2. Show a simple window that we create ourselves. We use a Begin/End pair to create a named window.
+    {
+        static float f = 0.0f;
+        static int counter = 0;
+
+        ImGui::Begin("Hello, world!");                          // Create a window called "Hello, world!" and append into it.
+
+        ImGui::Text("This is some useful text.");               // Display some text (you can use a format strings too)
+        ImGui::Checkbox("Demo Window", &show_demo_window);      // Edit bools storing our window open/close state
+        ImGui::Checkbox("Another Window", &show_another_window);
+
+        ImGui::SliderFloat("float", &f, 0.0f, 1.0f);            // Edit 1 float using a slider from 0.0f to 1.0f
+        ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats representing a color
+
+        if (ImGui::Button("Button"))                            // Buttons return true when clicked (most widgets return true when edited/activated)
+            counter++;
+        ImGui::SameLine();
+        ImGui::Text("counter = %d", counter);
+
+        ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);
+        ImGui::End();
+    }
+
+    // 3. Show another simple window.
+    if (show_another_window)
+    {
+        ImGui::Begin("Another Window", &show_another_window);   // Pass a pointer to our bool variable (the window will have a closing button that will clear the bool when clicked)
+        ImGui::Text("Hello from another window!");
+        if (ImGui::Button("Close Me"))
+            show_another_window = false;
+        ImGui::End();
+    }
+
+    // Rendering
+    ImGui::Render();
+    ImDrawData* draw_data = ImGui::GetDrawData();
+
+    renderPassDescriptor.colorAttachments[0].clearColor = MTLClearColorMake(clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w);
+    id <MTLRenderCommandEncoder> renderEncoder = [commandBuffer renderCommandEncoderWithDescriptor:renderPassDescriptor];
+    [renderEncoder pushDebugGroup:@"Dear ImGui rendering"];
+    ImGui_ImplMetal_RenderDrawData(draw_data, commandBuffer, renderEncoder);
+    [renderEncoder popDebugGroup];
+    [renderEncoder endEncoding];
+
+	// Present
+    [commandBuffer presentDrawable:view.currentDrawable];
+    [commandBuffer commit];
+}
+
+-(void)mtkView:(MTKView*)view drawableSizeWillChange:(CGSize)size
+{
+}
+
+//-----------------------------------------------------------------------------------
+// Input processing
+//-----------------------------------------------------------------------------------
+
+#if TARGET_OS_OSX
+
+- (void)viewWillAppear
+{
+    [super viewWillAppear];
+    self.view.window.delegate = self;
+}
+
+- (void)windowWillClose:(NSNotification *)notification
+{
+    ImGui_ImplMetal_Shutdown();
+    ImGui_ImplOSX_Shutdown();
+    ImGui::DestroyContext();
+}
+
+#else
+
+// This touch mapping is super cheesy/hacky. We treat any touch on the screen
+// as if it were a depressed left mouse button, and we don't bother handling
+// multitouch correctly at all. This causes the "cursor" to behave very erratically
+// when there are multiple active touches. But for demo purposes, single-touch
+// interaction actually works surprisingly well.
+-(void)updateIOWithTouchEvent:(UIEvent *)event
+{
+    UITouch *anyTouch = event.allTouches.anyObject;
+    CGPoint touchLocation = [anyTouch locationInView:self.view];
+    ImGuiIO &io = ImGui::GetIO();
+    io.AddMouseSourceEvent(ImGuiMouseSource_TouchScreen);
+    io.AddMousePosEvent(touchLocation.x, touchLocation.y);
+
+    BOOL hasActiveTouch = NO;
+    for (UITouch *touch in event.allTouches)
+    {
+        if (touch.phase != UITouchPhaseEnded && touch.phase != UITouchPhaseCancelled)
+        {
+            hasActiveTouch = YES;
+            break;
+        }
+    }
+    io.AddMouseButtonEvent(0, hasActiveTouch);
+}
+
+-(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event      { [self updateIOWithTouchEvent:event]; }
+-(void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event      { [self updateIOWithTouchEvent:event]; }
+-(void)touchesCancelled:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event  { [self updateIOWithTouchEvent:event]; }
+-(void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event      { [self updateIOWithTouchEvent:event]; }
+
+#endif
+
+@end
+
+//-----------------------------------------------------------------------------------
+// AppDelegate
+//-----------------------------------------------------------------------------------
+
+#if TARGET_OS_OSX
+
+@interface AppDelegate : NSObject <NSApplicationDelegate>
+@property (nonatomic, strong) NSWindow *window;
+@end
+
+@implementation AppDelegate
+
+-(BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)sender
+{
+    return YES;
+}
+
+-(instancetype)init
+{
+    if (self = [super init])
+    {
+        NSViewController *rootViewController = [[AppViewController alloc] initWithNibName:nil bundle:nil];
+        self.window = [[NSWindow alloc] initWithContentRect:NSZeroRect
+                                                  styleMask:NSWindowStyleMaskTitled | NSWindowStyleMaskClosable | NSWindowStyleMaskResizable | NSWindowStyleMaskMiniaturizable
+                                                    backing:NSBackingStoreBuffered
+                                                      defer:NO];
+        self.window.contentViewController = rootViewController;
+        [self.window center];
+        [self.window makeKeyAndOrderFront:self];
+    }
+    return self;
+}
+
+@end
+
+#else
+
+@interface AppDelegate : UIResponder <UIApplicationDelegate>
+@property (strong, nonatomic) UIWindow *window;
+@end
+
+@implementation AppDelegate
+
+-(BOOL)application:(UIApplication *)application
+    didFinishLaunchingWithOptions:(NSDictionary<UIApplicationLaunchOptionsKey,id> *)launchOptions
+{
+    UIViewController *rootViewController = [[AppViewController alloc] init];
+    self.window = [[UIWindow alloc] initWithFrame:UIScreen.mainScreen.bounds];
+    self.window.rootViewController = rootViewController;
+    [self.window makeKeyAndVisible];
+    return YES;
+}
+
+@end
+
+#endif
+
+//-----------------------------------------------------------------------------------
+// Application main() function
+//-----------------------------------------------------------------------------------
+
+#if TARGET_OS_OSX
+
+int main(int argc, const char * argv[])
+{
+    return NSApplicationMain(argc, argv);
+}
+
+#else
+
+int main(int argc, char * argv[])
+{
+    @autoreleasepool
+    {
+        return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
+    }
+}
+
+#endif