jpct-ae引擎的坐标系

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Coordinate system

From JPCT

jPCT's coordinate system

A few words on jPCT's coordinate system, because it causes some confusion from time to time. In "normal" GL-like coordinate system, positive x goes to the right, y goes up and z comes out of the screen. In jPCT, this is rotated 180° around x, so that x still goes to the right, but positive z goes INTO the screen and positive y goes DOWN. If you want/have to use third party code that uses a different system, some conversion is needed, which should be pretty simple to do.

 

我的翻译：

jpct引擎坐标系统的几句说明，因为它有时会引起一些混乱。

在“正常”的GL坐标系统中，x轴向右，Y轴向上，Z轴由屏幕想外。

但在jpct中，该坐标系以X轴旋转了180度，也就是说，X轴依然向右，但Y轴变成的向下，Z轴变成的由屏幕外向屏幕内。

所以，在定坐标时，要进行一定的转换，不过我想，这个转换是很简单的。

 

原文地址： http://www.jpct.net/wiki/index.php/Coordinate_system