3D in the Browser via WebGL: It's Go Time

3D In the Browser It’s go time. Presented by Pascal Rettig http://cykod.com @cykod Liberally using Material From: Mozilla MIT IAP WebGL Class http://learningwebgl.comMonday, July 11, 2011

When last I talked...Monday, July 11, 2011

Where We are 1977-84 1985-90 1991-94 1995-2000Monday, July 11, 2011

Where we are Q1 2010 Q4 2010 Q2 2011 Q4 2011Monday, July 11, 2011

I was wrong. Q1 2010 Q4 2010 Q2 2011Monday, July 11, 2011

WebGL is enabled in: • Chrome - Stable • Firefox 4 Beta • Webkit Nightly’s • an Opera Preview Release • IE ...Yeah, not anytime soon.Monday, July 11, 2011

By the end of Q2 All major supported browsers should have WebGL turned on by default.Monday, July 11, 2011

What can you do with WebGL? http://webglsamples.googlecode.com/hg/aquarium/ aquarium.html http://webglsamples.googlecode.com/hg/spacerocks/ spacerocks.htmlMonday, July 11, 2011

What is WebGL? WebGL is a royalty-free, cross-platform API that brings OpenGL ES 2.0 to the web as a 3D drawing context within HTML, exposed as low-level Document Object Model interfaces. It uses the OpenGL shading language, GLSL ES, and can be cleanly combined with other web content that is layered on top or underneath the 3D content. It is ideally suited for dynamic 3D web applications in the JavaScript programming language, and will be fully integrated in leading web browsers. http://www.khronos.org/Monday, July 11, 2011

WebGL is:Monday, July 11, 2011

WebGL is: • A 1.0 Standard (as of 3/8/11) released by the Khronos GroupMonday, July 11, 2011

WebGL is: • A 1.0 Standard (as of 3/8/11) released by the Khronos Group • In-browser native (Look ma, no plugins!)Monday, July 11, 2011

WebGL is: • A 1.0 Standard (as of 3/8/11) released by the Khronos Group • In-browser native (Look ma, no plugins!) • Implementation of OpenGL ES 2.0 (OpenGL for embedded systems)Monday, July 11, 2011

WebGL is: • A 1.0 Standard (as of 3/8/11) released by the Khronos Group • In-browser native (Look ma, no plugins!) • Implementation of OpenGL ES 2.0 (OpenGL for embedded systems) • A low level API (We’re not kidding around)Monday, July 11, 2011

WebGL is: • A 1.0 Standard (as of 3/8/11) released by the Khronos Group • In-browser native (Look ma, no plugins!) • Implementation of OpenGL ES 2.0 (OpenGL for embedded systems) • A low level API (We’re not kidding around) • Well Integrated into the DOM - can layer, use textures, etc.Monday, July 11, 2011

OpenGL ES 2.0Monday, July 11, 2011

OpenGL ES 2.0 • OpenGL for Embedded SystemsMonday, July 11, 2011

OpenGL ES 2.0 • OpenGL for Embedded Systems • Well-deﬁned subsets of desktop OpenGLMonday, July 11, 2011

OpenGL ES 2.0 • OpenGL for Embedded Systems • Well-deﬁned subsets of desktop OpenGL • What you’re using playing 3D games on your iPhone 3G (Orig. iPhone, Android are ES 1.0)Monday, July 11, 2011

OpenGL ES 2.0 • OpenGL for Embedded Systems • Well-deﬁned subsets of desktop OpenGL • What you’re using playing 3D games on your iPhone 3G (Orig. iPhone, Android are ES 1.0) • OpenGL ES 1.X is for ﬁxed function hardware. 2.0 is fully programmable vertex and fragement shaders.Monday, July 11, 2011

WebGL uses shaders for just about everything • Little bits of run-time compiled code that runs on the GPU • GLSL (OpenGL Shading Language) • “High Level” Shader language based on C • Compiled at runtime • Vertex shaders transform vertices • Fragment shaders compute pixel colorsMonday, July 11, 2011

WebGL PipeLine Vertex Operation ⇓ Rasterization ⇓ Fragment Operation ⇓ FrameBufferMonday, July 11, 2011

Simple(st) Shaders Vertex Shader attribute vec3 aVertexPosition; void main(void) { gl_Position = vec4(aVertexPosition, 1.0); } Fragment Shader void main(void) { gl_FragColor = vec4(1.0, 1.0, 1.0, 1.0); }Monday, July 11, 2011

Which gets us...Monday, July 11, 2011

Simplest Full Example (From Mozilla IAP class)Monday, July 11, 2011

More Tutorials at LearningWebGl.com • Based on the famous NeHe Open GL Tutorials • Textures: http://learningwebgl.com/ lessons/lesson05/index.html • http://learningwebgl.com/blog/? page_id=1217Monday, July 11, 2011

Has anyone noticed a problem?Monday, July 11, 2011

Has anyone noticed a problem? OpenGL isn’t exactly something you want to have to see on a daily basis, especially as a Javascript ProgrammerMonday, July 11, 2011

Abstraction Please...Monday, July 11, 2011

PhiloGL Relatively new framework from Sencha Labs http://senchalabs.github.com/philogl/Monday, July 11, 2011

PhiloGL • “PhiloGL code is highly abbreviated compared to WebGL.” • Have transcribed the learningwebgl lessons to PhiloGL • http://senchalabs.github.com/philogl/ PhiloGL/examples/lessons/1/ • http://senchalabs.github.com/philogl/ PhiloGL/examples/lessons/5/ • Sort of neat, but kinda meh...Monday, July 11, 2011

Mr. Doobs Three.js https://github.com/mrdoob/three.js/ Generic 3D library that supports a WebGL rendering as one of the backends.Monday, July 11, 2011

Three.jsMonday, July 11, 2011

Three.js • Nice, standard OO Abstractions for 3D programming. • No documentation, but lots of examples in the examples directory. • Lots of Demos to look at on the Github Page • May be a little too abstract for performant WebGL games, but they are reworking the WebGL renderer, so who knows.Monday, July 11, 2011

Copperlicht • Bills itself as “Commercial grade WebGL 3D engine with editor” • http://www.ambiera.com/copperlicht/ • Quake 3 Level http://bit.ly/fGKoOhMonday, July 11, 2011

More Frameworks / Engines From the Chronos WebGL Wiki: http://www.khronos.org/webgl/wiki/Monday, July 11, 2011

glQueryMonday, July 11, 2011

glQuery doesn’t exist... But it should - talk to me if you’re interested in working on something after the meetup.Monday, July 11, 2011

Thanks! Pascal Rettig @cykod on TwitterMonday, July 11, 2011

http://cykod.com	1008
http://www.techgig.com	111
url_unknown	5
http://localhost	1
http://webcache.googleusercontent.com	1
http://test.cykod.com	1

3D in the Browser via WebGL: It's Go Time

by Pascal Rettig on Mar 17, 2011

Accessibility

Categories

Tags

Upload Details

Usage Rights

6 Embeds 1,127

Statistics

3D in the Browser via WebGL: It’s Go Time — Presentation Transcript