安全上下文
此特征只可用于
安全上下文
(HTTPS),在某些或所有
支持浏览器
.
只读
XRViewport
接口的
y
property indicates the offset from the bottom edge of the destination surface (typically a
XRWebGLLayer
to the bottom edge of the viewport within the surface into which WebXR content is to be rendered.
The viewport's
x
property identifies the
x
component of the origin, and its is given by the
width
and
height
特性。
y = xrViewport.y;
The offset from the bottom edge of the rendering surface to the bottom edge of the viewport, in pixels.
注意:
Although other web APIs typically consider the
y
axis to begin at the top and grow larger progressing downward, WebGL reverses this, with
y
growing larger as it goes upward on the screen.
See the main
XRViewport
page for examples.
| 规范 | 状态 | 注释 |
|---|---|---|
|
WebXR 设备 API
The definition of 'XRViewport.y' in that specification. |
工作草案 | 初始定义。 |
| 桌面 | 移动 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
y
|
Chrome 79 | Edge 79 | Firefox 不支持 No | IE 不支持 No | Opera 不支持 No | Safari 不支持 No | WebView Android 不支持 No | Chrome Android 79 | Firefox Android 不支持 No | Opera Android 不支持 No | Safari iOS 不支持 No | Samsung Internet Android 11.2 |
完整支持
不支持
XRViewport
Navigator.xr
WebGLRenderingContext.makeXRCompatible()
XR
XRBoundedReferenceSpace
XRFrame
XRInputSource
XRInputSourceArray
XRInputSourceEvent
XRInputSourcesChangeEvent
XRPose
XRReferenceSpace
XRReferenceSpaceEvent
XRRenderState
XRRigidTransform
XRSession
XRSessionEvent
XRSpace
XRView
XRViewerPose
XRWebGLLayer