Minko - Scripting 3D apps with Lua and C++
3 likes3,338 views
This document summarizes the Minko 3D graphics engine. Minko 3 will allow scripting 3D apps with Lua and C++ across platforms like Windows, Mac, Linux, Android, iOS, HTML5 and Flash. Key points include: - Minko 3 is being developed to target new platforms while maintaining a "design once, deploy everywhere" workflow and improving performance. - It will use C++11 as the core framework with plugins and Lua for scripting 3D apps, allowing development once and deployment across platforms. - Lua was chosen over ActionScript for its better performance, operators overloading, and support for coroutines which allow non-blocking functions.
![« flash » technique
« windows » technique
Portable Effects & Shaders
"techniques" : [
{
"configuration" : [ "windows" ],
"passes" : [
{
"vertexShader" : …
"fragmentShader" : …
}
},
{
"configuration" : [ "flash" ],
"passes" : [
{
"vertexShader" : …
"fragmentShader" : …
},
{
"vertexShader" : …
"fragmentShader" : …
}
}
]
Group passes in a named
« technique »
Select that technique at
runtime based on some
flags
– Platform
– Available features/plugins
– Custom flags](https://image.slidesharecdn.com/minkoflashconference20131221-131221120743-phpapp01/85/Minko-Scripting-3D-apps-with-Lua-and-C-14-320.jpg)
Minko - Scripting 3D apps with Lua and C++
- 1. Flash Online Conference #7 Scripting 3D apps with Lua and C++ @Minko3D http://minko.io
- 2. Available today on minko.io LATEST MINKO 2 ADDITIONS
- 3. New Minko 2 Features Editor – Auto-save – Multiple optimizations Framework – Mutiple fixes on the lighting system Available today! http://minko.io/download
- 4. Codename « Normandie » MINKO 3
- 5. Motivations Target new platforms – Keep the « design once, deploy everywhere » workflow – Larger community Increase performances, epecially CPU-wise – Multi-threading? Leverage existing codebase
- 6. Technological choices C++11 core framework and plugins Develop once, deploy everywhere – Windows, Mac, Linux – Android, iOS – HTML5, Flash Work with all the tools you like
- 7. Demo – HTML5 Sponza http://minko.io/showcase/sponza-html5
- 8. Babolat Play - First commercial project! http://www.youtube.com/watch?v=ewUUerxdZ7U
- 9. Babolat Play - Fallback Run web app. yes Is WebGL available ? no Generate JPEG on the server Thanks to Minko 3, the same code runs on the server side and in the browser.
- 10. New Platforms Platform Status Target Languages iOS OK Native C/C++ Android OK Native C/C++ Flash (Stage3D) WIP X-Compilation C/C++, AS3 Windows (DirectX) OK Native C/C++ Mac OK Native C/C++ Windows (OpenGL) OK Native C/C++ Linux OK Native C/C++ HTML5 (WebGL) OK X-Compilation C/C++, Javascript Windows Phone WIP Native C/C++ BlackBerry 10 NA Native C/C++ Firefox OS NA Native C/C++
- 11. How can I help? Show your love for Crossbridge and Minko on the dedicated feature request on Github! – https://github.com/adobe-flash/crossbridge/issues/28 Please leave a comment, even just a +1
- 12. 2D/3D file formats 50+ 3D file formats – 3DS, BLEND (Blender 3D), DAE/Collada, FBX, IFC-STEP , ASE, DXF, HMP, MD2, MD3 , MD5, MDC, MDL, NFF, PLY, STL, X, OBJ, SMD, LWO, LXO, LWS, TER, AC3D , MS3D , COB, Q3BSP, XGL, CSM, BVH, B3D, NDO, Ogre XML, Q3D 20+ 2D file formats – JPEG, PNG, TIF, TGA, RAW, PSD…
- 13. Effect files Store a fully setup multi-pass rendering effect Include 3rd party shaders and plug them in the engine using bindings Support über-shaders using automated macro definition based on bindings Handle multiple rendering techniques to choose from at runtime Can fallback to another specific technique when the selected one fails (WIP)
- 14. « flash » technique « windows » technique Portable Effects & Shaders "techniques" : [ { "configuration" : [ "windows" ], "passes" : [ { "vertexShader" : … "fragmentShader" : … } }, { "configuration" : [ "flash" ], "passes" : [ { "vertexShader" : … "fragmentShader" : … }, { "vertexShader" : … "fragmentShader" : … } } ] Group passes in a named « technique » Select that technique at runtime based on some flags – Platform – Available features/plugins – Custom flags
- 17. SCRIPTING IN MINKO 3
- 18. C++11 is great, but… Is a new language for most developers It’s too complex for prototyping game design Requires some setup to get started Slow iteration times
- 19. Core Framework Language Fast Rich & expressive Optimized for each target C, C++, Java, C#... VS Javascript, Python, AS3… Scripting Language Simple Interpreted Dynamic
- 20. Complaints about ActionScript Garbage collector is messy No operators overloading Bad performances No (easy) concurrency
- 21. We chose… Lua! Fits all the requirements of a scripting language Vastly used by the video game industry (World of Warcraft, Fable II & III, Neverwinter Nights, …) – Complete list of games scripted with Lua Very (very) fast – LuaJIT is comparable to Javascript V8, if not faster Designed to be embedded Designed to script games – Simple but very efficient syntax – Minimalistic set of features but very extensible – Coroutines!
- 22. C++ Lua? LuaGlue! C++/Lua bindings Open source project – https://github.com/Tomasu/LuaGlue – We contribute as much as possible Leverage C++11 – Optimize as compile time as much as possible – Simple binding interface Used to bind 90% of Minko’s C++ API – Write 100% of your app in Lua
- 23. ActionScript VS Lua ActionScript Messy garbage collector Lua Customizable garbage collector No operators overloading Operators overloading Bad performances Very fast + custom C/C++ bindings No easy concurrency Coroutines
- 24. Minko 3 VS Flash Application Application Flash Runtime Minko 3 ActionScript VM Lua VM Core Library OS ANE Core Framework & Plugins OS
- 25. Flexible Application Application Flash Runtime Minko 3 ActionScript VM Lua VM Core Library OS ANE Core Framework & Plugins OS
- 26. Open Source Application Application Flash Runtime Minko 3 ActionScript VM Lua VM Core Library OS ANE Core Framework & Plugins OS
- 27. Customizable Application Application Flash Runtime Minko 3 ActionScript VM Lua VM Core Library OS ANE Core Framework & Plugins OS
- 28. Coroutines A function can suspend its execution… – coroutine.yield() … and then resume « sometime later » – coroutine.resume() Gives the illusion of parallelism – Yet no complicated threading stuff – Fully cross-platform Allow the creation of non-blocking (heavy) functions Can (always?) be used in place of events/callbacks
- 29. Coroutines function myScript doSomething() while isIdle say(‘hello how are you?’) wait(seconds(3)) while no isIdle wait(keyboard:keyDown()) handleKeyboard() …
- 31. Event driven Coroutine driven Action => reaction Breaks the code in multiple handlers Messy execution flow Messy scopes Wait for « something » to happen Non-blocking Simple execution flow Meaningful and readable
- 32. You chose! C++ – Performances – Rich and powerful language Lua – Simple and efficient – Fast iteration times Mix both in any project on any target
- 33. 2014 New Minko editor – – – – – Script editor Live coding ShaderLab Animations editor Plugins system http://www.youtube.com/watch?v=yuR1e1PjU8Y Open beta of Minko 3 (January) An amazing new Minko product for businesses and teams
- 34. Don’t forget to check http://minko.io ! JOYEUX NOEL! THANK YOU SERGEY