GPU Technology Conference

Google chrome team

WebGL2 -> OpenGL 3
moving around all in GPU
Transform feed
leap motion
http://toji.github.io/webgl1-particles-2
android google chorome for android 2
web gl 2 samples
- UPen team -> open gl samples
- search for webgl2samples -> github
- webglsamples.org/WebGL2Samples/#texture_2d_array
3D texture
texture upload parameter should be working
Unity
- Building and Runnng a WebGL Project
- big deal -> any unity project
- their 20M runtime is messive
- web assembly support -> prototype phase: google, edge and firefox
- this is a very big contributuion
about: flags -> look for flag: web gl 2
will be released from 2 hours
Intel, nvidia made a huge contribution
es3 -> features: glsl
mobile chrome:
- 2 months from now webgl2 will be out to any desktop and any mobile
- blacklisting some old phones
- all the recent phones are ready
- as soon as it’s passing the test
conformance test -> c++ to js: having some issues

Spring 2016
bringing the HMD to WebVR
WebVR is
- js api, display webgl contents
- poll headset pose (position/orientation)
http://webvr.info/samples
[Enter VR(E)]
WebVR 1.0
Simplified API
- Single VRDisplay for each piece of hardware
- Using TypedArrays instead of DOMPoint
- Removed configuratble Field of View
- Clear names (VRPose instead of VRPositionState)
- Controller are NOT part of WebVR
  - working on extending gamepad api instead
new presenatation model
- no longer based on fullscreen api
- vrr-specific request animation frame
- explict submit frame
- advanced mirroring
- confiurable eye viewports (mono rendering)
- focus on presenting webgl canvas v1
demos
capabilities reporting
- hasPosition/hasOrientation
- hasExternalDisplay
- canPresent
Room scale support
- matrix to transform from “sitting” to “standing” space (floor at Y=0)
- size of play area in meters
easier to polyfil
- new webvr polyfill is much more complete implmentation of the API
- http://webvr.info/samples
- Use polyfill link
some work to be done
- only supports on windows and mobile only
- latency
- hardware sdk
- gamepad api
What is it good for
- not for AAA games
- 360 videos and photos
- everything in between
brandon jones @tojiro http://tojicode.com http://webvr.info
gear vr => WIP, browser exp is very good

Neil Trevett
- TF => transmission format
- audio:mp3:napster, video:h.264:youtube, image:jpeg:facebook, 3d:??:??
format for representing the scenes
- materials and textures
- geometry and hierarcy
- skin and animation
glTF = > GL transmission format
- runtime asset format for webgl, open gl and open gl application
- compact repreesentation for download efficiency
glTF internal
- JSON describe node hierarity .gltf -> json describe node hierarchy, material, cameras .bin -> gemoetry: verts and indicex .glsl .png.jpg
gltf examples
- gltf -> jsonnode
gltf ecosystems
- tool(blender), translator, validator, engines
- github.com/khronosgroup/gltf#gltf-tools
- collada to glTF
- three.js, babylon.js -> gltf engine => xeoEngine, PEX, CESIUM
- validator RFQ is open
glTF 1.0 spec is finalized 2015 oct
https://khronos.org/gltf/
glTF extensions
- KHR_binary-glTF
- EXT_quantized_attributes (vendor extensions)
- MPEG 3D mesh compression (in porgression) 40-80% compression
  - loyalty free
gltf is richer than fbx
most of enignes are intersted. also unity
microsoft -> 3mf : 3d printing
gltf -> scene graph

shader editor => google chrome extension: good for debugging and hacking the shaders
polygon shredder
nefertrippy
EXT_disjoint_timer_query + rAF + rIC rstats-extension-webGL/WebVR
got
web gl shader editor: chrome editor - developer tab:
it makes the development easier
http://www.clicktorelease.com/code/polygon-shredder
rstats
- spite.github.io/rstats
- rstats -> another google chrome extension
- to measure FPS to see EXT_disjoint_timer_query
- 10.4ms 96FPS, rAF: 16.6ms, 60.5 FPS
- rIC: 2.3 ms, 458.0FPS
- drawCalls 5