Game Engine Architecture, Second Edition

• hippo_san

  2024-05-06
  We should stress here that threads are the fundamental unit of program execution within an operating system, not processes. A process merely provides an environment within which its thread(s) can run, including a virtual mem- ory map and a set of resources that are used by and shared between all threads within that process. Whenever a thread is scheduled to run on a core, its pro- cess becomes active, and that process’s resources and environment become available for use by the thread while it runs. So when we say that a thread is running on a core, remember that it is always doing so within the context of exactly one process.
• 红色有角F叔

  2017-05-06
  若送往 CRT 显示屏的红蓝绿值以线性递增，屏幕上显示出来的结果从人眼的感知上的亮度则并非线性的。视觉上来说，较暗的区域显得比理论上来说还暗。
• DinoStray

  2014-03-16
  笔者认为STL在PC上可以无碍使用，因为PC上有高级的虚拟内存（virtual memory）系统，谨慎地分配内存变得不那么紧要。在游戏主机上，只有有限的（甚至没有）虚拟内存功能，而且缓存命中失败的代价极高，游戏开发者最好编写自定义的数据结构，保证是可预期或有限的内存分配模式。