Minko - Windows App Meetup Nov. 2013
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This document summarizes a presentation about using C++11 to build 3D applications for desktop, web, and mobile. It discusses using C++11 features like closures and shared pointers. It also describes tools like Emscripten that allow compiling C++ to JavaScript for HTML5/WebGL deployment and ANGLE which maps OpenGL to DirectX for Windows apps. Key benefits highlighted are cross-platform support, native speeds, and compatibility with app stores. Some challenges mentioned are higher RAM usage for HTML5 apps and lack of Windows Phone support.
Minko - Windows App Meetup Nov. 2013
- 1. #WindowsApps – Nov. 2013 Build 3D web and desktop applications with C++11 Jean-Marc Le Roux CEO and co-founder of Aerys jeanmarc@aerys.in @promethe42
- 3. by
- 4. 3D. Everywhere. Deliver engaging, interactive and rich 3D content and applications on desktops, mobiles and the web.
- 5. Focus on design. Boost with code. Minko « Studio » Edition Designers integrate 3D content, customize materials, setup lights and animations. Developers plug in scripts and interactivity.
- 6. The sky is the limit. Minko « Community » Edition Build desktop, web and mobile 3D applications with Minko’s free and open source SDK including a fully-featured 3D engine and plugins.
- 8. « We chose Minko to be the 3D engine in one of our new Flash-based games because we think it’s a highly professional solution in terms of development ecosystem and high performance. » André Weissflog, Head of Development at BigPoint
- 9. Features 100% compatible with Windows, Mac, Linux, iOS, Android and WebGL WYSIWYG Scene editor 3D scene graph API 80+ 2D/3D file formats supported Dynamic assets loading Über-shaders Components & scripts system 3D compression, simplification and streaming Physics (Bullet) Plugin system (Oculus, Leap, ….) Data-driven rendering engine Particles engine
- 10. Why? 3D apps are usually bigger/more complex projects Bigger teams Bigger expectations Complex assets workflow C++ is more expressive and brings some specific optimizations Static typing, templates Inlining Low level memory management (no GC) … C++ can be used on any platforms (Windows, Mac, Linux, iOS, Android, Flash, Windows Phone…) « Anything that can be done with JavaScript will be done in Javascript » Well anything that can be done has already been done in C++ so…
- 12. C++ 2011 Standard, fast, well documented and supported by a vast community Already fully supported by all major compilers (VS, GCC, LLVM…) New additions make it closer to what we’re used to with Javascript – Closures/lambda functions – Type inference (instead of dynamic typing) – Shared pointers (instead of GC)
- 13. C++11 Example – Closures // callback is removed when mouseWheel is set to nullptr
- 14. C++11 Example – Shared pointers
- 15. Emscripten https://github.com/kripken/emscripten Open source project driven by Mozilla – Based on LLVM, which is supported by Google, Apple, Intel and many more Cross-compile C++ code to Javascript code – Binds OpenGL to WebGL – Provide virtual file system – C++ Javascript bindings Code optimizations – LLVM and C++ specific optimizations – Closure compiler – asm.js (2x performances of native code!) Code compression using LZMA
- 19. ANGLE https://code.google.com/p/angleproject/ Almost Native Graphics Layer Engine Open source project driven by Google – Used by Chrome and Firefox WebGL implementations OpenGL wrapper that will map OGL calls to the DirectX API – Provide better performances on Windows – Makes it possible to target DirectX with an OpenGL based implementation – Should provide Windows Phone 8 compatibility out of the box Also converts GLSL shaders to HLSL – Completely transparent to the developer! – Write once, deploy everywhere Supports DirectX 11 – Compatible with the Windows 8.1 App Store
- 20. Conclusion
- 21. My Feedback – The Good Parts Working with C++ 2011 is amazing More complex but so much powerful/expressive than AS3/JS Useful and reliable STL containers (list, maps, sets, etc…) Shared pointers make memory management just as easy as with managed languages: not a single memory leak so far! Visual Studio/XCode are very good IDEs Minko 3’s implementation is much lighter and yet just as much powerful Vagrant + Premake provides an efficient build system with crosscompilation
- 22. My Feedback – The Good Parts Compatibility The app runs on Windows, Mac, Linux, iOS, Android and WebGL withouth a single modification! Haven’t tested iOS/Android yet, but should work out of the box Speed Native speed on Windows, Mac, Linux, iOS and Android 2x speed of native code in HTML5/WebGL thanks to asm.js! Target DirectX 11 thanks to ANGLE Direct push on the Windows 8.1 App Store
- 23. My Feedback – The Bad Parts RAM consumption for HTML5/WebGL apps x-compiled with emscripten Will likely improve with every new release Not yet compatible with the Windows Phone 8 App Store Forbidden to use the « online » HLSL compiler for mobile apps
- 24. Don’t forget to check http://minko.io ! Merci !