1 / 21

Open Source Projects around the OpenGL ES API

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.

isra
Download Presentation

Open Source Projects around the OpenGL ES API

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Open Source Projectsaround the OpenGL ES API Hans-Martin Will Project Lead, Vincent

  2. 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

  3. 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/

  4. 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

  5. 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/

  6. 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

  7. 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/

  8. 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

  9. 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

  10. 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

  11. 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

  12. 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

  13. Project Adoption ~2000 downloads of binaries for last release; 2/3 Windows, 1/3 Linux All time 24,669 downloads

  14. Dynamic Compilation Technology

  15. 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

  16. 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

  17. Refresher: OpenGL ES 2.x Pipeline

  18. Compilation Process

  19. 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

  20. Questions? http://ogl-es.sourceforge.net http://ogles2.sourceforge.net

More Related