--- title: VRLayer slug: Web/API/VRLayerInit translation_of: Web/API/VRLayerInit original_slug: Web/API/VRLayer ---
WebVR API の VRLayer
インターフェイス (ディクショナリ)は,VRHMDへ表示したいコンテンツレイヤー( {{domxref("HTMLCanvasElement")}} または {{domxref("OffscreenCanvas")}})を表します。
{{domxref("VRDisplay.requestPresent()")}} メソッドを使うことでレイヤーを表示することができます。
// currently returns an empty array var layers = vrDisplay.getLayers(); if(navigator.getVRDisplays) { console.log('WebVR 1.1 supported'); // Then get the displays attached to the computer navigator.getVRDisplays().then(function(displays) { // If a display is available, use it to present the scene if(displays.length > 0) { vrDisplay = displays[0]; console.log('Display found'); // Starting the presentation when the button is clicked: It can only be called in response to a user gesture btn.addEventListener('click', function() { vrDisplay.requestPresent([{ source: canvas }]).then(function() { console.log('Presenting to WebVR display'); // Here it returns an array of VRLayerInit objects var layers = vrDisplay.getLayers(); ... }); }); } }); }
{{domxref("VRLayerInit")}} objects look something like this:
{ leftBounds : [ ... ], rightBounds: [ ... ], source: canvasReference }
Note: The canvasReference
refers to the {{htmlelement("canvas")}} element itself, not the WebGL context associated with the canvas. The other two members are arrays
仕様 | ステータス | 備考 |
---|---|---|
{{SpecName('WebVR', '#interface-vrlayer', 'VRLayer')}} | {{Spec2('WebVR')}} | 初回定義 |
{{Compat("api.VRLayerInit")}}