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Similaire à WebGL Camp 4 - A3 3D Engine
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WebGL Camp 4 - A3 3D Engine
- 2. A Simple 3D Engine
- 3. Who am I?
- 4. Who am I? • My name is Paul
- 5. Who am I? • My name is Paul • I’m a developer with about 10 years of experience
- 6. Who am I? • My name is Paul • I’m a developer with about 10 years of experience • I work for HUGE in London
- 7. Who am I? • My name is Paul • I’m a developer with about 10 years of experience • I work for HUGE in London • Findable on Twitter as @aerotwist
- 8. Who am I? • My name is Paul • I’m a developer with about 10 years of experience • I work for HUGE in London • Findable on Twitter as @aerotwist • Findable on the interwibble at http://aerotwist.com
- 9. “I know, I’ll make a 3D engine!”
- 10. Why bother?
- 11. Why bother? • There are already loads: Three.js, J3D, PhiloGL, etc
- 12. Why bother? • There are already loads: Three.js, J3D, PhiloGL, etc • A great opportunity to learn
- 13. Why bother? • There are already loads: Three.js, J3D, PhiloGL, etc • A great opportunity to learn • An even better opportunity to share
- 14. Why bother? • There are already loads: Three.js, J3D, PhiloGL, etc • A great opportunity to learn • An even better opportunity to share • ... and Bartek Drozdz suggested it
- 15. “I have no idea how to make a 3D engine.” :(
- 17. Elevator Pitch
- 18. Elevator Pitch • Make a simple 3D engine
- 19. Elevator Pitch • Make a simple 3D engine • Make it feature-limited... feature-selective ;)
- 20. Elevator Pitch • Make a simple 3D engine • Make it feature-limited... feature-selective ;) • Make it Open Source and available on GitHub
- 21. Elevator Pitch • Make a simple 3D engine • Make it feature-limited... feature-selective ;) • Make it Open Source and available on GitHub http://github.com/paullewis/a3
- 22. Goalz
- 23. Goalz • Try and write a 3D engine a developer can use
- 24. Goalz • Try and write a 3D engine a developer can use • Get API documentation “for free”
- 25. Goalz • Try and write a 3D engine a developer can use • Get API documentation “for free” • Keep it lean and mean
- 26. Goalz • Try and write a 3D engine a developer can use • Get API documentation “for free” • Keep it lean and mean • Record videos explaining the process
- 27. Developer APIs
- 28. Developer APIs • Really difficult
- 29. Developer APIs • Really difficult • You know your own code
- 30. Developer APIs • Really difficult • You know your own code • You don’t know what a developer wants to do
- 31. Developer APIs • Really difficult • You know your own code • You don’t know what a developer wants to do • You may screw it up a bit :)
- 32. Developer APIs • Really difficult • You know your own code • You don’t know what a developer wants to do • You may screw it up a bit :) • Advice: get help
- 33. For your Renderer class why did you go with a shortcut namespace of A3.R instead of A3.Renderer? That tripped me up initially because it was inconsistent with how you shortcut namespaced your other class files. - Joshua Perez, via email
- 36. Free Documentation • Really easy
- 37. Free Documentation • Really easy • With JavaScript just use JavaDoc comments
- 38. Free Documentation • Really easy • With JavaScript just use JavaDoc comments • Run jsdoc-toolkit against it as part of the build
- 39. Free Documentation • Really easy • With JavaScript just use JavaDoc comments • Run jsdoc-toolkit against it as part of the build • Automagic wonders will follow
- 40. Keeping It Small
- 41. Keeping It Small • Really hard
- 42. Keeping It Small • Really hard • Functionality is either core or addon
- 43. Keeping It Small • Really hard • Functionality is either core or addon • Core is always included, addon toggled in the build
- 44. Keeping It Small • Really hard • Functionality is either core or addon • Core is always included, addon toggled in the build • 99% right now is core
- 45. Keeping It Small • Really hard • Functionality is either core or addon • Core is always included, addon toggled in the build • 99% right now is core • The engine is about 13KB gzipped (53KB normal)
- 46. Videos
- 47. Videos • Really time consuming
- 48. Videos • Really time consuming • Hard to distil knowledge in a meaningful way
- 49. Videos • Really time consuming • Hard to distil knowledge in a meaningful way • Hard to work out how useful they are
- 50. Videos • Really time consuming • Hard to distil knowledge in a meaningful way • Hard to work out how useful they are • I’m running behind
- 51. Features
- 53. Features • Geometry abstraction • Phong and Lambert shading
- 54. Features • Geometry abstraction • Phong and Lambert shading • Lighting
- 55. Features • Geometry abstraction • Phong and Lambert shading • Lighting • Cameras
- 56. Features • Geometry abstraction • Phong and Lambert shading • Lighting • Cameras • Scene graph
- 57. Features • Geometry abstraction • Phong and Lambert shading • Lighting • Cameras • Scene graph • Cube mapping
- 58. Features • Geometry abstraction • Phong and Lambert shading • Lighting • Cameras • Scene graph • Cube mapping • Texturing
- 65. Conclusion
- 67. Conclusion • Have goals • Be willing to refactor and change things
- 68. Conclusion • Have goals • Be willing to refactor and change things • Ask a few people to help you
- 69. Conclusion • Have goals • Be willing to refactor and change things • Ask a few people to help you • Write plenty of samples
- 70. Conclusion • Have goals • Be willing to refactor and change things • Ask a few people to help you • Write plenty of samples • Share and be open
- 71. but mainly...
- 72. if you have a crazy idea...
- 73. DO IT! :)
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