La Cantine Presentation, Paris, 10th June 2011

The Technology Behind VastPark
Craig Presti, CTO
craig@vastpark.com
@craigomatic

Disclaimer
Some experimental features will be shown…

FLEXIBLE

How VastPark works
IMML Host
(ie: WorldServer)
IMML Renderer
(ie: VastPark Player)
User
Media Storage
(ie: Amazon S3)
Authentication
(ie: VastId)

Technologies

Source Code
http://vastpark.svn.cvsdude.com/public/trunk

Specifications
We don’t find one that works, we create it
Royalty free, open specification license:http://www.vastpark.org/wiki/1/Open_specification_license
LIXA

Immersive Media Markup Language

SceneGraph Hierarchy

Scriptable DOM
IMML
<PrimitiveName="Prim"Position="0,0,0"Type="Box"/>
VastScript
e = scene:getelement(‘Prim’)
e.position = vector3(1,2,3)
All scene elements have globally unique names within that context.

Network Enabled Elements

HTML functionality
Web Element
Spatially Presented
Web Element
Docked Flat

Video functionality
Video Element
Spatially Presented
Video Element
Docked Flat

Audio functionality
Spatial Audio
Audio Properties and Methods
Pitch
Volume
Streaming
GetSpectrum
GetSampleRate

Texture Functionality
var t = ImmlElementFactory.CreateTexture();
t.ID = Util.GenerateUniqueID();
t.SetParkEngine(_ParkEngine);
t.Load(bytes);
t.WritePixels(pixels);

Drawing API
Line
Rectangle
Arc
Ellipse

Plugin Extensibility
<Plugin Name=“MyPlugin" Enabled="True" Source=“my.plugin">
<Parameter Key=“Uri" Value=“http://example.org" />
</Plugin>
<Trigger Event=“Loaded" Target=“OnLoad" />
<Script Name=“OnLoad" Language="Lua">
function main(obj, args)
myplugin:dosomething()
end
</Script>
publicclassMyPlugin : IPluginComponent
{
publicstring Uri { get; set; }
publicvoidDoSomething()
{
//do work
}
}

Plugin Framework
Available via nuget
Ships with the Player and WorldServer
Recommended way to write Plugins for VastPark

Portable IMML
Distribute a virtual world like a PDF!
Supports URI impersonation
Both single-user and multi-user scenarios are supported
Supports encryption

Widgets
A type of IMML container
Embeddable within other IMML contexts

Continuum
Continuum captures state changes
Binary file format
Supports forward and backwards playback and random seek
Designed to be streamed over a network
Supports arbitrary capture formats
ICodec

OpenAvatar

LIXA
Supports groups of bones, allowing specific animations to play on specific bone groups independently.
Human readable layout, making it easy to copy and paste animation sequences from one file to another.

Metaforik
Entertains the idea of media as a concept
Supports for multiple representations of that concept
Permissions
Discovery

Distributed Processing
Player
WorldServer
<IMML/>
<IMML/>
CLIENT
SERVER
Client Plugin
Server Plugin
3rd Party Service

World Deployment
Two primary output options:
Portable IMML (like a PDF)
IMML (like a web page)
Many hosting options:
WorldServer (multi-user, single user)
IIS, Apache, etc (single-user)
FileServer(single-user)
Local HDD (single-user)

TeamFlex

WebGL & HTML5
Being heavily promoted by Googlehttp://www.chromeexperiments.com
OpenGL 2.0 ES
HTML5 applications native in Windows 8
WebGLuncertainty

Resources
http://www.vastpark.org
http://theparkisvast.com
craig@vastpark.com
@craigomatic

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La Cantine Presentation, Paris, 10th June 2011

by craigomatic on Jun 10, 2011

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La Cantine Presentation, Paris, 10th June 2011 — Presentation Transcript