Class SceneView

Definition

Namespace:: Tizen.NUI.Scene3D

Assembly:: Tizen.NUI.Scene3D.dll

SceneView is a Class to show multiple 3D objects in a single 2D screen. Each SceneView has its own 3D space, and 3D objects added to SceneView are positioned in the space. SceneView uses left-handed coordinate system same as NUI. X as right, Y as down, and Z as forward.

SceneView has internal root container to control inner rendering process like depth test. When a View is added to the SceneView with Add(View) method, it is actually added on the root container. Therefore, the added Views exist in the sub tree of SceneView, but are not direct children. The sub tree of Views will be rendered with the SceneView's own Camera.

SceneView has one built-in camera by default. The default Camera is not removed by using RemoveCamera(Camera) method. GetCamera(uint) method with index "0" returns the default camera, and the minimum value returned by GetCameraCount() method is 1.

SceneView also provides multiple Camera and one of them can be used to render multiple objects. AddCamera(Camera), RemoveCamera(Camera), GetCamera(uint), and SelectCamera(uint) are methods to manage Cameras of the SceneView. User can place multiple cameras in a scene to display the entire scene or to display individual objects. User can use the SelectCamera(uint) method to select the currently required camera.

When the SceneView's size changes, some camera properties that depend on its size may also change. The changing properties are as follows: AspectRatio, LeftPlaneDistance, RightPlaneDistance, TopPlaneDistance, and BottomPlaneDistance. The Camera's FieldOfView is vertical fov. The horizontal fov is updated internally according to the SceneView size.

The SetImageBasedLightSource(string, string, float) method sets the same IBL to all Model objects added to the SceneView. For the IBL, two cube map textures(diffuse and specular) are required. SceneView supports 4 types layout for Cube Map: Vertical/Horizontal Cross layouts, and Vertical/Horizontal Array layouts. And also, ktx format with cube map is supported. If a model already has an IBL, it is batch overridden with the IBL of the SceneView. If the SceneView has IBL, the IBL of newly added models is also overridden.

The IBL textures start to be loaded asynchronously when SetImageBasedLightSource(string, string, float) method is called. ResourcesLoaded signal notifies that the loading of the IBL resources have been completed.

If FBO is used, the rendering result of SceneView is drawn on the FBO and it is mapped on the plane of the SceneView. It could decreases performance slightly, but it is useful to show SceneView according to the rendering order with other Views.

And since SceneView is a View, it can be placed together with other 2D UI components in the NUI window.

public class SceneView : View, INotifyPropertyChanged, IDisposable

Inheritance: object

BindableObject

Tizen.NUI.Binding.Element

BaseHandle

Animatable

Container

View

SceneView

Implements: System.ComponentModel.INotifyPropertyChanged

System.IDisposable

Constructors

View Source

SceneView()

Create an initialized SceneView.

Declaration

public SceneView()

View Source

SceneView(SceneView)

Copy constructor.

Declaration

public SceneView(SceneView sceneView)

Parameters

Type	Name	Description
SceneView	sceneView	The source object.

Properties

View Source

ImageBasedLightScaleFactor

Set/Get the ImageBasedLight ScaleFactor. Scale factor controls light source intensity in [0.0f, 1.0f]

Declaration

public float ImageBasedLightScaleFactor { get; set; }

Property Value

Type	Description
float

Methods

View Source

AddCamera(Camera)

Adds a Camera to the SceneView at the end of the camera list of SceneView. The Camera can be used as a selected camera to render the scene by using SelectCamera(uint) or SelectCamera(string)

Declaration

public void AddCamera(Camera camera)

Parameters

Type	Name	Description
Camera	camera	Camera added on this SceneView.

Remarks

Some properties of the Camera will be change depending on the Size of this SceneView. Those properties are as follows: AspectRatio, LeftPlaneDistance, RightPlaneDistance, TopPlaneDistance, and BottomPlaneDistance.

The FieldOfView of Camera is for vertical fov. When the size of the SceneView is changed, the vertical fov is maintained and the horizontal fov is automatically calculated according to the SceneView's AspectRatio.

View Source

CameraTransition(string, int, AlphaFunction)

Starts camera transition from currently selected camera to a camera of input name. Camera Position, Orientation and FieldOfView are smoothly animated.

Declaration

public void CameraTransition(string name, int durationMilliSeconds, AlphaFunction alphaFunction = null)

Parameters

Type	Name	Description
string	name	string keyword of destination Camera of Camera transition.
int	durationMilliSeconds	The duration in milliseconds.
AlphaFunction	alphaFunction	The alpha function to apply.

Remarks

The selected camera is switched to the Camera of the input name when the transition is finished. During camera transition, Selected Camera should not be changed by using SelectCamera() or CameraTransition() method. During camera transition, Camera properties of Selected Camera should not be changed.

View Source

CameraTransition(uint, int, AlphaFunction)

Starts camera transition from currently selected camera to a camera of index. Camera Position, Orientation and FieldOfView are smoothly animated.

Declaration

public void CameraTransition(uint index, int durationMilliSeconds, AlphaFunction alphaFunction = null)

Parameters

Type	Name	Description
uint	index	Index of destination Camera of Camera transition.
int	durationMilliSeconds	The duration in milliseconds.
AlphaFunction	alphaFunction	The alpha function to apply.

Remarks

The selected camera is switched to the Camera of the index when the transition is finished. During camera transition, Selected Camera should not be changed by using SelectCamera() or CameraTransition() method. During camera transition, Camera properties of Selected Camera should not be changed.

View Source

GetCamera(string)

Retrieves a Camera of the input name.

Declaration

public Camera GetCamera(string name)

Parameters

Type	Name	Description
string	name	string keyword of Camera to be retrieved.

Returns

Type	Description
Camera	Camera that has the name as a View.Name property

View Source

GetCamera(uint)

Retrieves a Camera of the index.

Declaration

public Camera GetCamera(uint index)

Parameters

Type	Name	Description
uint	index	Index of Camera to be retrieved.

Returns

Type	Description
Camera	Camera of the index.

View Source

GetCameraCount()

Retrieves the number of cameras.

Declaration

public uint GetCameraCount()

Returns

Type	Description
uint	The number of Cameras.

View Source

GetSelectedCamera()

Retrieves selected Camera.

Declaration

public Camera GetSelectedCamera()

Returns

Type	Description
Camera	Camera currently used in SceneView as a selected Camera.

View Source

RemoveCamera(Camera)

Removes a Camera from this SceneView. If removed Camera is selected Camera, first camera in the list becomes the selected Camera.

Declaration

public void RemoveCamera(Camera camera)

Parameters

Type	Name	Description
Camera	camera	camera Camera to be removed from this Camera.

Remarks

When Camera.Dispose() is called, the NUI object is disposed, but camera information is maintained internally. Therefore, even if Camera.Dispose() is called, RemoveCamera() or RemoveCamera() methods can be used. If RemoveCamera() is called too, all information is deleted together.

View Source

SelectCamera(string)

Makes SceneView use a Camera of a name as a selected camera.

Declaration

public void SelectCamera(string name)

Parameters

Type	Name	Description
string	name	string keyword of Camera to be used as a selected camera.

View Source

SelectCamera(uint)

Makes SceneView use a Camera of index as a selected camera.

Declaration

public void SelectCamera(uint index)

Parameters

Type	Name	Description
uint	index	Index of Camera to be used as a selected camera.

View Source

SetImageBasedLightSource(string, string, float)

Changes Image Based Light as the input textures.

Declaration

public void SetImageBasedLightSource(string diffuseUrl, string specularUrl, float scaleFactor = 1)

Parameters

Type	Name	Description
string	diffuseUrl	The path of Cube map image that can be used as a diffuse IBL source.
string	specularUrl	The path of Cube map image that can be used as a specular IBL source.
float	scaleFactor	Scale factor that controls light source intensity in [0.0f, 1.0f]. Default value is 1.0f.

Remarks

http://tizen.org/privilege/mediastorage for local files in media storage. http://tizen.org/privilege/externalstorage for local files in external storage.

Implements

System.ComponentModel.INotifyPropertyChanged

System.IDisposable