Cubemap 立方体贴图

class in UnityEngine/Inherits from: Texture

Class for handling cube maps, Use this to create or modify existing cube map assets.
设置立方体贴图的类，使用该类去创建或修改现有的立方体贴图资源。

format	The format of the pixel data in the texture (Read Only). 贴图的像素数据的格式。
mipmapCount	How many mipmap levels are in this texture (Read Only). 在该贴图中多级文理的数量。

Create a new empty cubemap texture.
新建空立方体贴图纹理。

Apply	Actually apply all previous SetPixel and SetPixels changes. 实际应用所有先前SetPixel和SetPixels的改变。
GetPixel	Returns pixel color at coordinates (face, x, y). 返回所在坐标(face, x, y)处的像素颜色。
GetPixels	Returns pixel colors of a cubemap face. 返回一个立方体贴图的面的像素颜色。
SetPixel	Sets pixel color at coordinates (face, x, y). 设置所在坐标(face, x, y)处的像素颜色。
SetPixels	Sets pixel colors of a cubemap face. 设置一个立方体面的像素颜色。
SmoothEdges	Performs smoothing of near edge regions. 接进的边进行平滑。