带有Surround插件的3显示器输出

• engine.surround functionsengine.surround函数

• <UnigineSDK>/data/samples/plugins/app_surround_00 sample for additional details.<UnigineSDK>/data/samples/plugins/app_surround_00样本以获取更多详细信息。

  To run the first sample from the UNIGINE SDK Browser, press the Surround plugin button on the Plugin Samples tab.要从UNIGINE SDK Browser运行第一个样本，请按Plugin Samples选项卡上的Surround plugin按钮。

Surround has one primary viewport in the center, while all others are rendered as auxiliary ones. By default, the primary display is the UNIGINE engine viewport used for one-monitor configuration. It uses matrices of the Player used by the engine to view the scene. Other displays are arbitrary cameras with any perspective and facing whatever direction needed. Each display has its own modelview and projection matrices. Both the primary monitor and auxiliary ones can be enabled or disabled, if necessary.Surround在中心有一个主视口，而所有其他视口则被渲染为辅助视口。默认情况下，主显示是用于单显示器配置的UNIGINE引擎视口。它使用引擎使用的Player矩阵查看场景。其他显示器是具有任意角度并面向所需方向的任意摄像机。每个显示器都有自己的模型视图和投影矩阵。如果需要，可以启用或禁用主监视器和辅助监视器。

• The central monitor is a primary one. Two side monitors are auxiliary monitors that can be arbitrary cameras with any perspective and facing whatever direction needed.中央监控器是主要的监控器。两侧监视器是辅助监视器，可以是任何摄像机，任何角度和面向任何方向的辅助监视器。
• Each display, including the primary one, has its own modelview and projection matrices.每个显示器，包括主要的显示器，都有自己的模型视图和投影矩阵。
• By default, only a primary one has an interface (render system GUI, editor widgets, wireframe, or the profiler). However, separate GUIs can be drawn on all monitors.默认情况下，只有主要的一个具有接口（渲染系统GUI，编辑器小部件，线框或分析器）。但是，分开图形用户界面可以在所有监视器上绘制。
• All viewports have their own viewport and Reflection mask to selectively render nodes and reflections from them.所有视口都有自己的视口反射遮罩可选择性地渲染节点和来自节点的反射。

Just like in case with Wall, rendering of Surround viewports is controlled by the wall.h script (found in <UnigineSDK>/data/core/scripts/system).就像使用Wall一样，渲染Surround视口也由wall.h脚本（位于<UnigineSDK>/data/core/scripts/system中）控制。

To implement a custom camera configuration, comment wall.h out in the unigine.usc system script and wrap your custom code around with #ifdef HAS_SURROUND ... #endif in the render() function of the system script:要实现自定义摄像机配置，请在unigine.usc系统脚本中将wall.h注释掉，并在系统脚本的render()函数中将您的自定义代码与#ifdef HAS_SURROUND ... #endif包装在一起：

int render() {
	#ifdef HAS_SURROUND
		// place an implementation of a 
		// custom camera configuration here
		// ...
	#endif
	return 1;
}

There are two possible setups depending on how the central monitor is rendered. It can be drawn by:根据中央监视器的呈现方式，有两种可能的设置。可以通过以下方式得出：

• The default engine renderer (the same as when a usual one-monitor application is rendered).默认引擎渲染器（与呈现通常的单显示器应用程序时相同）。
• The Surround renderer itself (which is safer if you are going to use asymmetric frustum for the central monitor and modify its modelview matrix).Surround渲染器本身（如果要对中央监视器使用不对称的视锥，并修改其Modelview矩阵，则更加安全）。

注意

Only one of two renderers should be enabled at the same time.只能同时启用两个渲染器之一。

The following example demonstrates how to tweak cameras configuration and choose the renderer for the central monitor.以下示例演示了如何调整摄像机配置并选择中央监视器的渲染器。

1. Using default engine renderer1.使用默认引擎渲染器#

2. Using Surround renderer2.使用Surround渲染器#