Camera 摄像机

Inherits from Behaviour

A Camera is a device through which the player views the world.

Camera是一个设备，玩家通过它看世界。

A screen space point is defined in pixels. The bottom-left of the screen is (0,0); the right-top is (pixelWidth,pixelHeight). The z position is in world units from the camera.

屏幕空间点用像素定义，屏幕的左下为(0,0);右上是（PixelWidth，pixelHeight）.Z的位置是以世界单位衡量的到相机的距离。

A viewport space point is normalized and relative to the camera. The bottom-left of the camera is (0,0); the top-right is (1,1). The z position is in world units from the camera.

视口空间点是归一化的并相对于相机的。相机的左下为（0,0）；右上是（1,1）；Z的位置是以世界为单位衡量的到相机的距离。

A world space point is defined in global coordinates (eg. Transform.position).

世界空间点是以全局坐标定义的（例如：Transform.position）

Variables变量

• fieldOfView
  The field of view of the camera in degrees.
  相机的视野，以度为单位。
• nearClipPlane
  The near clipping plane distance.
  近裁剪面的距离。
• farClipPlane
  The far clipping plane distance.
  远裁剪面的距离。
• renderingPath
  Rendering path.
  渲染路径。
• actualRenderingPath
  Actually used rendering path (Read Only).
  实际使用的渲染路径（只读）。
• orthographicSize
  Camera's half-size when in orthographic mode.
  在正交模式下相机的一半尺寸。
• orthographic
  Is the camera orthographic (true) or perspective (false)?
  相机是正交的（true），是透视的（false）？
• depth
  Camera's depth in the camera rendering order.
  相机在渲染顺序上的深度。
• aspect
  The aspect ratio (width divided by height).
  长宽比（宽度除以高度）。
• cullingMask
  This is used to render parts of the scene selectively.
  这个用来选择性的渲染部分场景。
• backgroundColor
  The color with which the screen will be cleared.
  屏幕将被清理为这个颜色。
• rect
  Where on the screen is the camera rendered in normalized coordinates.
  相继被渲染到屏幕规范化坐标中的位置。
• pixelRect
  Where on the screen is the camera rendered in pixel coordinates.
  相机被渲染到屏幕像素中的位置。
• targetTexture
  Destination render texture (Unity Pro only).
  描述渲染纹理（仅Unity专业版）。
• pixelWidth
  How wide is the camera in pixels (Read Only).
  相机有多宽，以像素单位（只读）。
• pixelHeight
  How tall is the camera in pixels (Read Only).
  相机有多高，以像素单位（只读）。
• cameraToWorldMatrix
  Matrix that transforms from camera space to world space (Read Only).
  从相机空间到世界空间的变换矩阵（只读）。
• worldToCameraMatrix
  Matrix that transforms from world to camera space.
  从世界到相机空间的变换矩阵。
• projectionMatrix
  Set a custom projection matrix.
  设置自定义的投影矩阵。
• velocity
  Get the world-space speed of the camera (Read Only).
  获取世界空间中相机的速度（只读）。
• clearFlags
  How the camera clears the background.
  相机如何清除背景。
• layerCullDistances
  Per-layer culling distances.
  每层的消隐距离。
• depthTextureMode
  How and if camera generates a depth texture.
  相机生成怎样的一个深度纹理。

Functions函数

• ResetWorldToCameraMatrix
  Make the rendering position reflect the camera's position in the scene.
  在场景中让渲染位置反映相机的位置。
• ResetProjectionMatrix
  Make the projection reflect normal camera's parameters.
  让投影反映正常的相机参数。
• ResetAspect
  Revert the aspect ratio to the screen's aspect ratio.
  恢复长宽比为屏幕的长宽比。
• WorldToScreenPoint
  Transforms position from world space into screen space.
  从世界空间到屏幕空间变换位置。
• WorldToViewportPoint
  Transforms position from world space into viewport space.
  从世界空间到视窗空间的变换位置。
• ViewportToWorldPoint
  Transforms position from viewport space into world space.
  从视窗空间到世界空间的变换位置。
• ScreenToWorldPoint
  Transforms position from screen space into world space.
  从屏幕空间到世界空间的变化位置。
• ScreenToViewportPoint
  Transforms position from screen space into viewport space.
  从屏幕空间到视窗空间的变换位置。
• ViewportToScreenPoint
  Transforms position from viewport space into screen space.
  从视口空间到屏幕空间的变换位置。
• ViewportPointToRay
  Returns a ray going from camera through a viewport point.
  返回从相机出发穿过视点的一个射线。
• ScreenPointToRay
  Returns a ray going from camera through a screen point.
  返回一条射线从摄像机通过一个屏幕点。
• Render
  Render the camera manually.
  手动渲染相机。
• RenderWithShader
  Render the camera with shader replacement.
  用shader替代渲染相机。
• SetReplacementShader
  Make the camera render with shader replacement.
  使相机渲染用shader替换。
• ResetReplacementShader
  Remove shader replacement from camera.
  从相机上移除shader替换。
• RenderToCubemap
  Render into a cubemap from this camera.
  从这个相机渲染到一个立方贴图。
• CopyFrom
  Makes this camera's settings match other camera.
  使这个相机的设置与其他相机相同。

Messages Sent发送消息

• OnPreCull
  OnPreCull is called before a camera culls the scene.
  OnPreCull在相机开始裁剪场景之前调用。
• OnPreRender
  OnPreRender is called before a camera starts rendering the scene.
  OnPreRender在相机开始渲染场景之前调用。
• OnPostRender
  OnPostRender is called after a camera has finished rendering the scene.
  OnPostRender 在相机渲染场景之后调用。
• OnRenderImage
  OnRenderImage is called after all rendering is complete to render image
  OnRenderImage在所有渲染完成后被调用，来渲染图片的后期处理效果（仅限UnityPro）。
• OnRenderObject
  OnRenderObject is called after camera has rendered the scene.
  OnRenderObject 被用来渲染你自己的物体，使用或者其他函数。
• OnWillRenderObject
  OnWillRenderObject is called once for each camera if the object is visible.
  如果物体可见，每个相机都会调用OnWillRenderObject。

Class Functions类函数

• main
  The first enabled camera tagged "MainCamera" (Read Only).
  第一个启用的被标记为“MainCanmera”的相机（只读）。
• current
  The camera we are currently rendering with, for low-level render control only (Read Only).
  当前用于渲染的相机，只用于低级的渲染控制（只读）
• allCameras
  Returns all enabled cameras in the scene.
  allCameras 所有相机

Inherited members继承成员

Inherited Variables继承变量

• enabled
  Enabled Behaviours are Updated, disabled Behaviours are not.
  启用行为被更新，禁用行为不更新。

• transform
  The Transform attached to this GameObject (null if there is none attached).
  Transform附加到GameObject（游戏物体）（如无附加则为空）。
• rigidbody
  The Rigidbody attached to this GameObject (null if there is none attached).
  Rigidbody附加到GameObject（游戏物体）（如无附加则为空）。
• camera
  The Camera attached to this GameObject (null if there is none attached).
  Camera附加到GameObject（游戏物体）（如无附加则为空）。
• light
  The Light attached to this GameObject (null if there is none attached).
  Light附加到GameObject（游戏物体）（如无附加则为空）。
• animation
  The Animation attached to this GameObject (null if there is none attached).
  Animation附加到GameObject（游戏物体）（如无附加则为空）。
• constantForce
  The ConstantForce attached to this GameObject (null if there is none attached).
  ConstantForce附加到GameObject（游戏物体）（如无附加则为空）。
• renderer
  The Renderer attached to this GameObject (null if there is none attached).
  Renderer附加到GameObject（游戏物体）（如无附加则为空）。
• audio
  The AudioSource attached to this GameObject (null if there is none attached).
  AudioSource附加到GameObject（游戏物体）（如无附加则为空）。
• guiText
  The GUIText attached to this GameObject (null if there is none attached).
  GUIText附加到GameObject（游戏物体）（如无附加则为空）。
• networkView
  The NetworkView attached to this GameObject (Read Only). (null if there is none attached)
  NetworkView附加到GameObject（游戏物体）（只读）（如无附加则为空）。
• guiTexture
  The GUITexture attached to this GameObject (Read Only). (null if there is none attached)
  GUITexture附加到GameObject（游戏物体）（只读）（如无附加则为空）。
• collider
  The Collider attached to this GameObject (null if there is none attached).
  Collider附加到GameObject（游戏物体）（如无附加则为空）。
• hingeJoint
  The HingeJoint attached to this GameObject (null if there is none attached).
  HingeJoint附加到GameObject（游戏物体）（如无附加则为空）。
• particleEmitter
  The ParticleEmitter attached to this GameObject (null if there is none attached).
  ParticleEmitter附加到GameObject（游戏物体）（如无附加则为空）。
• gameObject
  The game object this component is attached to. A component is always attached to a game object.
  组件附加的游戏物体。一个组件总是被附加到一个游戏物体。
• tag
  The tag of this game object.
  游戏物体的标签。

• name
  The name of the object. //物体的名字
• hideFlags
  Should the object be hidden, saved with the scene or modifiable by the user?
  物体是否被隐藏、保存在场景中或被用户修改？

Inherited Functions继承函数

• GetComponent
  Returns the component of Type type if the game object has one attached, null if it doesn't.
  如果游戏物体有一个附加，则返回Type类型的组件，如果没有则为null。
• GetComponent.<T>
   
• GetComponent
  Returns the component with name type if the game object has one attached, null if it doesn't.
  如果游戏物体有一个附加，则返回名字类型组件，如果没有则为null。
• GetComponentInChildren
  Returns the component of Type type in the GameObject or any of its children using depth first search.
  返回Type类型组件，在GameObject或它的任何子物体使用深度优先搜索，仅返回激活的组件。
• GetComponentInChildren.<T>
   
• GetComponentsInChildren
  Returns all components of Type type in the GameObject or any of its children.
  在GameObject或任何它的子物体，返回全部Type类型组件
• GetComponentsInChildren.<T>
   
• GetComponents
  Returns all components of Type type in the GameObject.
  在游戏物体返回全部Type类型组件。
• GetComponents.<T>
   
• CompareTag
  Is this game object tagged tag?
  游戏物体有被标记标签么？
• SendMessageUpwards
  Calls the method named methodName on every MonoBehaviour in this game object and on every ancestor of the behaviour
  在游戏物体每一个MonoBehaviour和每一个behaviour的祖先上调用名为methodName的方法。
• SendMessage
  Calls the method named methodName on every MonoBehaviour in this game object.
  在游戏物体每一个MonoBehaviour上调用名为methodName的方法。
• BroadcastMessage
  Calls the method named methodName on every MonoBehaviour in this game object or any of its children.
  在游戏物体每一个MonoBehaviour和它的全部子物体上调用名为methodName的方法。

• GetInstanceID
  Returns the instance id of the object.
  返回物体的实例ID
• ToString
  Returns the name of the game object.
  返回游戏物体的名称。

Inherited Class Functions继承类函数

• operator bool
  Does the object exist?
  物体是否存在？
• Instantiate
  Clones the object original and returns the clone.
  克隆原始物体，并返回克隆的物体
• Instantiate.<T>
   
• Destroy
  Removes a gameobject, component or asset.
  删除一个游戏物体、组件或资源
• DestroyImmediate
  Destroys the object obj immediately. It is strongly recommended to use Destroy instead.
  立即销毁物体obj，强烈建议使用Destroy代替。
• FindObjectsOfType
  Returns a list of all active loaded objects of Type type.
  返回Type类型的所有激活的加载的物体列表
• FindObjectOfType
  Returns the first active loaded object of Type type.
  返回Type类型第一个激活的加载的物体。
• operator ==
  Compares if two objects refer to the same
  比较如果两个物体相同
• operator !=
  Compares if two objects refer to a different object
  比较如果两个物体不同
• DontDestroyOnLoad
  Makes the object target not be destroyed automatically when loading a new scene.
  加载新场景的时候使目标物体不被自动销毁。