Unity插件--UniSky

http://www.sixtimesnothing.com/unisky

      UniSky is a jaw-droppingly powerful procedural sky, weather, and atmospheric visual effects system for Unity 3. Create gorgeous, AAA-quality living skies in just moments with this popular and powerful tool. UniSky was developed by Six Times Nothing's Lead Technical Artist, Chris Morris.

     

UniSky 1.2.7 Features

• 24 hour day/night cycle with sun, moon and stars
• Atmospheric scattering for realistic sky colors at any time of day
• Dynamic directional light color and positioning for the sun and moon
• Procedural 2D cloud animation with dynamic 3D lighting and shading
• Parameterized cloud cover, precipitation level, atmospheric scattering, glow, wind direction/speed and colors
• Highly optimised and runs almost entirely on the GPU
• Completely scriptable with an extensive API giving you control over every parameter

 

使用步骤：

（1）将主摄像机的"Clear Flags" 设置为 "Solid Color"，背景颜色调成黑色，"Far Clipping Plane"调到100000；

（2）将插件自带的"UniSkyAPI" prefab拖入场景；

（3）将主摄像机赋给UniSkyAPI GUI的"General" 的Scene Camera；如下图：

(4)新建一个脚本，通过脚本初始化UniSky的API，并控制各参数；

脚本很简单：

public class ExampleScript : MonoBehaviour {
    
    // create an instance of the API
    private UniSkyAPI uniSky;
    
    void Awake() {
        // define the instance
        uniSky = GameObject.Find("UniSkyAPI").GetComponent("UniSkyAPI") as UniSkyAPI;
        
        // instantiate 
        uniSky.InstantiateUniSky();
    }
    
    void Update() {
        // set up a 24-hour cycle with a framerate dependent speed of 1.0
        uniSky.SetTime(uniSky.GetTime() + Time.deltaTime * 1.0f);
    }
}

void Awake() {
		
		// Define instance
		uniSky = GameObject.Find("UniSkyAPI").GetComponent("UniSkyAPI") as UniSkyAPI;
		
		// Initiate and create default UniSky 
		uniSky.InstantiateUniSky();
		
		// Set some initial states 
		uniSky.SetTime(12.0f);
		uniSky.SetAmbientLighting(new Color(0.1f, 0.1f, 0.1f, 0.1f));
		uniSky.SetStormCenter(new Vector3(0,0,0));
		uniSky.SetSunShadows(LightShadows.Soft);
		
		// Functions to interpolate parameters over time
		
		/*uniSky.LerpCloudCover(0.5f, 5000.0f);
		uniSky.LerpPrecipitationLevel(0.6f, 5000.0f);
		uniSky.LerpStormCloudCover(-1.0f, 10000.0f);
		uniSky.LerpRainLevel(100, 0.2f, 10000.0f);
		uniSky.LerpStormLevel(150, 0.4f, 20000.0f);
		uniSky.LerpSunIntensity(0.2f, 10000.0f);
		uniSky.LerpFogLevel(0.02f, 20000.0f);
		uniSky.LerpAmbientLighting(new Color(0.0f, 0.0f, 0.0f, 0.0f), 5000);
		uniSky.ClearDropletBuffer();
		uniSky.LerpDropletLevel(10, 20000.0f);*/
		
	}

 (5)运行就可以看到效果了；想要效果跟想象的一样好，就需要不断的调节UniSkyAPI GUI界面参数了~，编写程序代码也可以实现。

下载地址：UniSky

http://blog.csdn.net/tanmengwen/article/details/8236873