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Open Source Projects around the OpenGL ES API. Hans-Martin Will Project Lead, Vincent. Overview. Applications of OpenGL ES API Application Programs Games & Game Engines Libraries and Wappers Vincent Project OpenGL ES 1.x API OpenGL ES 2.x API Q & A. Pocket Blender.

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Open source projects around the opengl es api

Open Source Projectsaround the OpenGL ES API

Hans-Martin Will

Project Lead, Vincent


Overview
Overview

  • Applications of OpenGL ES API

    • Application Programs

    • Games & Game Engines

    • Libraries and Wappers

  • Vincent Project

    • OpenGL ES 1.x API

    • OpenGL ES 2.x API

  • Q & A


Pocket blender
Pocket Blender

  • Port of Blender 3D modeling application

  • Windows Mobile

  • Case-study for porting legacy OpenGL application to ES:

    • Use OpenGL emulation layer to get started

      • In thise case: Klimt ES

    • Convert to OpenGL ES API

  • Binary License and GPL

  • http://russose.free.fr/BlenderPocket/


Quake 3 arena
Quake 3 Arena

  • Port of Quake 3 Arena to Pocket PC

  • Windows Mobile 2003, 5 in the works

  • Code base converted to fixed point!

    • And many other profile-guided changes

    • Case study for porting AAA title to mobile

  • Playable frame-rates on hardware OpenGL ES implementation

  • GPL

  • http://www.noctemware.com/q3ce.html


Ogre game engine
OGRE Game Engine

  • Port of OGRE to PocketPCs

  • Windows Mobile

  • Considered one of the best OSS game engines out there

  • Great asset tool chain (Collada, Blender, 3dsmax, Maya, …)

  • Porting process described in

    • http://www.gprt.ufpe.br/~grvm/pdfs/ArtigosCompletos/2006/SVR2006_Limaetal.pdf

  • LGPL

  • Siggraph:

    • BOF Thu at 2 pm, #213

  • http://www.cin.ufpe.br/~grvm/

  • http://www.manifestgames.com/


Torus 3d engine
Torus 3D Engine

  • Game engine specifically developed for mobile devices

  • BREW

  • BSP-based

  • Small footprint, fixed-point math

  • Exporters for 3dsmax

  • BSD License

  • http://www.imersiva.com/torus3d.php

  • http://sourceforge.net/projects/torus-3d


Cube engine
Cube Engine

  • Single- and multi-player FPS engine

  • Simple, but not necessarily resource-conscious

  • Windows Mobile, Intel XScale

  • Zlib/libpng License

  • http://www.cubeengine.com/cube_intel_pda/


Glut es
GLUT ES

  • Port of freeglut implementation; most of GLUT v.3

  • WinCE and Win32

  • Great to get started with OpenGL ES programming

  • ZeusCMD Tutorials

  • BSD-style license

  • http://glutes.sourceforge.net


Opengl es 1 0 sample reference implementation
OpenGL ES 1.0 Sample Reference Implementation

  • Implements OpenGL ES 1.0 API on top of desktop OpenGL 1.3 impl.

  • Linux

  • For development and testing of OpenGL ES 1.0 software on desktop computer

  • Not a registered OpenGL ES implementation, but tested against OpenGL ES conformance tests.

  • BSD License

  • http://www.khronos.org/opengles/documentation/gles-1.0c.tgz


Desktop opengl es
Desktop OpenGL ES

  • Implements OpenGL ES 1.1 API on top of desktop OpenGL 1.5 impl.

  • Linux, Windows XP, FreeBSD, Mac OS X

  • For development and testing of OpenGL ES 1.1 software on desktop computer

  • Not a registered OpenGL ES implementation, but tested against OpenGL ES conformance tests.

  • BSD License

  • http://developer.hybrid.fi/dgles/index.html

  • http://sourceforge.net/projects/dgles


Misc applications libraries
Misc. Applications & Libraries

  • Khronos Coding Contest Entries

    • http://www.khronos.org/developers/resources/opengles/

  • Fogron

    • Tron-style game

    • http://www.podvlivem.net/fogron

  • DOGLESS

    • OpenGL wrapper on top of OpenGL ES API

    • http://opensource.dylogic.com/DOGLESS/Articles/About.html

  • Klimt ES

    • OpenGL wrapper on top of OpenGL ES API, used by PocketBlender

    • Contact Daniel Wagner


Vincent 3d rendering library for mobile devices
Vincent 3D Rendering Library for Mobile Devices

  • Provides implementation of OpenGL ES 1.1 API; Common Lite (fixed point)

  • Windows Mobile, ARM Linux

  • Project created in Aug. 2003 right after release of OpenGL ES specification

  • Conformance submission January 2006

  • http://sourceforge.net/projects/ogl-es

  • BSD License


Project adoption
Project Adoption

~2000 downloads of binaries for last release;

2/3 Windows, 1/3 Linux

All time 24,669 downloads



What is it used for
What is it used for?

  • Learning tool for OpenGL ES API

    • Windows Mobile is popular!

  • Academic research

    • Mochocki, Lahiri & Cadambi (2006) Power analysis of mobile 3D graphics, IEEE-CS\DATC

    • Nadalutti, Chittaro, Buttussi (2006) Rendering of X3D content of mobile devices with OpenGL ES, Proc. 11th int. conf. on 3D Web Tech.

    • Student/thesis projects

  • Navigation systems

    • Based on support requests

    • Example: MagicMaps2Go


Vincent3d rendering library
Vincent3D Rendering Library

  • Goal: Develop OSS implementation of OpenGL ES 2.x API

  • Platform-independent C, later Verilog

  • Includes GL SL ES to C compiler

  • Reference, content development, research

  • Comes with unit testing framework

  • wxWindows Licence (LGPL + distribution)

  • http://sourceforge.net/projects/ogles2




What s next
What’s next?

  • Timeline

    • Alpha release of runtime Siggraph

    • Integrate shader language compiler 3Q06

    • Fully stable release 1Q07

  • Outlook

    • Piecewise conversion to system model

    • Verilog

  • Interested?

    • Get involved!

    • http://ogles2.sourceforge.net


Questions
Questions?

http://ogl-es.sourceforge.net

http://ogles2.sourceforge.net