0 A.D: Graphics Graphics problems and opportunities of open-source - - PowerPoint PPT Presentation

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0 A.D: Graphics Graphics problems and opportunities of open-source - - PowerPoint PPT Presentation

Aug 24, 2022 264 likes •357 views

0 A.D: Graphics Graphics problems and opportunities of open-source game Vladislav Belov 0 A.D: Graphics Structure A little history of 0 A.D. Used technologies and how it works. Known problems. Current solutions. Future plans.

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0 A.D: Graphics

Graphics problems and opportunities of open-source game

Vladislav Belov 0 A.D: Graphics

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SLIDE 2

Structure

  • A little history of 0 A.D.
  • Used technologies and how it works.
  • Known problems.
  • Current solutions.
  • Future plans.

Vladislav Belov 0 A.D: Graphics

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SLIDE 3

History

0 A.D. (pronounced “zero-ey-dee”) is a free, open-source, historical Real Time Strategy (RTS) game currently under development by Wildfire Games, a global group of volunteer game developers. As the leader of an ancient civilization, you must gather the resources you need to raise a military force and dominate your enemies. 0 A.D. has been in development since 2001 (or 2003, depending on how you count). You can find complete history of the game at: https://play0ad.com/about/the-story-of-0-a-d/.

Vladislav Belov 0 A.D: Graphics

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Technologies

  • Own game engine - Pyrogenesis (written in C++).
  • SDL for most OS depended things (IO events, system calls, etc).
  • OpenGL 1/2 API for rendering some stuff: glBegin, glEnd, ....
  • ARB/GLSL for shaders (ARB - 2002).

Vladislav Belov 0 A.D: Graphics

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Problems

  • Inaccurate hardware information.
  • Old OpenGL and slow API functions.
  • No modern OpenGL API functions: glDrawInstanced, ....
  • Driver or application crashes on Intel cards with particular driver
  • Legacy support of OpenGL drivers on macOS 10.14

Vladislav Belov 0 A.D: Graphics

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Solutions

  • Tracker and forum to collect people feedback.
  • In-game crash dump and system info that players can upload on our site.
  • A feedback server to receive automatic hardware reports voluntarily submitted

by players of 0 A.D.

Vladislav Belov 0 A.D: Graphics

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Plans

  • Find out active audience that really play the game.
  • More abstractions to minimize number of places with direct low-level calls.
  • Find a low-level third party library or engine for GL/Vulkan/Metal.
  • White lists for drivers with bugs (like it’s done for Chromium).

Vladislav Belov 0 A.D: Graphics

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0 A.D.

Thank you!

play0ad.com ‘

Vladislav Belov 0 A.D: Graphics