minko stage3d 20130222

Resources

Sources httpsgithubcomaerysminko

Forum httpanswersaerysin

Samples httpgithubcomaerysminko-examples

Documentation httphubaerysinindexphpMinkoTutorials httphubaerysinminkoreferenceindexhtml

Minko SDKs

Professional SDK Advanced Features

Community SDK Free and open

source framework Free tools

PART 1 SCRIPTING Community SDK

The bigger the app the cleaner you want to be

should

I ndash or someone else ndash already did this I want to re-use the existing code

ISceneNode

Mesh Camera Group Light

AbstractController

ISceneNodeaddController()

AnimationController AbstractScriptController

DataProvider

ISceneNodebindingsaddDataProvider()

CameraDataProvider LightDataProvider M

odel

Co

ntro

ller

View

Material

ISceneNode

Mesh Camera Group Light

AbstractController

ISceneNodeaddController()

AnimationController AbstractScriptController

DataProvider

ISceneNodebindingsaddDataProvider()

CameraDataProvider LightDataProvider M

odel

Co

ntro

ller

View

Material

MyScript

To create a script Extend AbstractScriptController Override the update() method

You can keep working the way you want You donrsquot have to use scripts or controllers

But with scripts amp controllershellip

Re-usable loosely coupled code Target multiple scene nodes with a single script Easily build and share your own library of useful scripts Easily fetch and use the communities code snippets

only 1 script var kbScript KeyboardMoveScript = new KeyboardMoveScript() but it controls 2 targets cubeaddController(kbScript) sphereaddController(kbScript)

Easy access to Mousekeyboard properties and signals time deltaTime Scene A lot of other properties useful to script stuffhellip

if the right arrow key is downhellip if (keyboardkeyIsDown(KeyboardRIGHT)) targettransformappendTranslation(1)

Similar to EventENTER_FRAME but Lighter Customisable per-script laquo frame rate raquo

execute this script only once per second thisframerate = 1

Example move objects with the keyboard

public class KeyboardMoveController extends AbstractScriptController override protected function update(target ISceneNode) void

if (keyboardkeyIsDown(KeyboardRIGHT))

targettransformappendTranslation(1)

if (keyboardkeyIsDown(KeyboardLEFT))

targettransformappendTranslation(-1)

if (keyboardkeyIsDown(KeyboardUP))

targettransformappendTranslation(0 1)

if (keyboardkeyIsDown(KeyboardDOWN))

targettransformappendTranslation(0 -1)

if (keyboardkeyIsDown(KeyboardPAGE_UP))

targettransformappendTranslation(0 0 1)

if (keyboardkeyIsDown(KeyboardPAGE_DOWN))

targettransformappendTranslation(0 0 -1)

Usage

instanciate the script var kbScript KeyboardMoveScript = new KeyboardMoveScript()

add the script to a target

cubeaddController(kbScript)

remove the script from a target

cuberemoveController(kbScript)

More about scripts and controllershellip

Write your first controller A Script To Move Objects With The Keyboard Handle Mouse Focus With A Script Switching Material With a Controller Create Procedural 3D Animations

HDR Rendering Dynamic lights

Static lights Dynamic shadows

Static shadows Diffuse texture

Noise

Diffuse texture

Kids this is the story of how I met your shaderhellip

1992 2001 2004 2011

Mortal Kombat GTA III Doom 3 Crysis 2

1996

Evolution of shader languages

What about AGAL

1992 2001 2004 2011

Mortal Kombat GTA III Doom 3 Crysis 2

1996

Language Features

In 1992 Flash was called FutureSplash Animator and written by a single man Jonathan Gay

learning AGAL = learning GPU programming AGAL is awesome for 3D engines developers Low-level binary assembly code Cross-platform

AGAL is a nightmare for 3D applications

developers

With Minko you can program the GPU using ActionScript 30

Minko embedded JIT Compiler

Shader ByteCode ActionScript Shader Code

public class MyShader public function getVertexPosition() SFloat return localToScreen(vertexXYZ) public function getPixelColor() SFloat return sampleTexture( meshBindingsgetTextureParameter(lsquotexturersquo) interpolate(vertexUV) )

m44 vt0 va0 vc0 m44 vt0 vt0 vc5 mov oc vt0 mov v0 va1 tex ft0 v0 ltlinear2dgt mov oc ft0

at runtime compilation

ActionScript Shader

bullUse all ActionScript 30 features bullgetOutputPosition =gt Vertex Shader bullgetOutputColor =gt Fragment Shader bullOOP style bullCPUGPU balancing

ASG

bullAbstract Shader Graph bullOptimizations bullConstants and temporary registers allocation bullOperations re-ordering for faster execution and optimal use of temporary registers

AGAL

bullDirect bytecode generation at runtime bullCustom compiler bullOptional debug data bullAGAL assembly output bullShader graph output bullMemory allocation map

Exec

utio

n

Full AS3 workflow Conditionnals and loops Classes and methods Dynamic OOP coding style

Exhaustive AGAL implementation

Extra high-level operations set Re-usable laquo shader parts raquo

Shaders compiled at-runtime

Just like any other AS3 code

Dynamic according to The scene properties The mesh propertiesmaterial Any constant variable etchellip

Redistributable as SWFSWC files

AC TIONSCRIPT IS NOW THE MOST POWERFUL S H A D E R L A N G U A G E

AC TIONSCRIPT IS NOW THE MOST POWERFUL S H A D E R L A N G U A G E

(as a language but not GPU feature wise because of Stage3D limitations )

More about shadershellip

JIT shaders for better performance Create your first shader Understanding vertex to fragment

interpolation Get ActionScript shaders compilations logs Create a shader rendering per-pixel normals Create a laquo black and white raquo post-processing

effect