TypeScript scene.Scene類代碼示例

        var initScene = function() {
            // Creates the canvas
            var renderedCanvas = document.createElement("canvas");
            renderedCanvas.className = "vjs-tech";
            videoEl.parentElement.insertBefore(renderedCanvas, videoEl);
            videoEl.style.display = "none";

            // Creates the default babylonjs scene
            var engine = new Engine(renderedCanvas, true, {
                disableWebGL2Support: settings.disableWebGL2Support
            });

            // Workaround http://localhost:8080/indexCode.html
            engine.getCaps().vertexArrayObject = false;
            var scene = new Scene(engine);

            // Set the hardware scaling level
            const scaling = Math.max(settings.hardwareScalingLevel, 1 / (window.devicePixelRatio || 4));
            engine.setHardwareScalingLevel(scaling);

            // Helps reducing the needed number of draw calls
            scene.renderTargetsEnabled = false;
            scene.clearColor = new Color4(0, 0, 0, 1);
            scene.onPointerObservable.add(function() {
                player.userActive(true);
            });

            // No need of clear or depth buffer as it is a 360 video only
            scene.autoClear = false;
            scene.autoClearDepthAndStencil = false;
            engine.setDepthBuffer(false);
            
            // Creates the 360 video
            var dome = new VideoDome("testdome", videoEl, { autoPlay: false, size: 2000 }, scene);
            dome.rotation.x = -settings.defaultCameraOrientationX;
            dome.rotation.y = -settings.defaultCameraOrientationY;

            // Create the custom vr helper if requested
            var vrHelper = new VRExperienceHelper(scene, {
                useCustomVRButton: true,
                controllerMeshes: false
            });

            // Prevent pointer lock to let the menu accessible
            vrHelper.requestPointerLockOnFullScreen = false;

            // Records VR state
            vrHelper.onEnteringVRObservable.add(() => {
                isInVRMode = true;
            });
            vrHelper.onExitingVRObservable.add(() => {
                isInVRMode = false;
                player.controls(true);
            });

            // Adapt the camera to the requested settings.
            scene.activeCamera.fov = settings.fov;

            // Adapt the video type to the requested one.
            if (settings.videoType === "stereoscopicSideBySide") {
                dome.videoMode = VideoDome.MODE_SIDEBYSIDE;
            }
            else if (settings.videoType === "stereoscopicTopBottom") {
                dome.videoMode = VideoDome.MODE_TOPBOTTOM;
            }
            else {
                // Default to monoscopicPanoramic
                dome.videoMode = VideoDome.MODE_MONOSCOPIC;
            }

            // VR Switch function.
            toggleWebVR = function() {
                if (!isInVRMode) {
                    player.controls(false);
                    vrHelper.enterVR();
                } else {
                    vrHelper.exitVR();
                }
            }

            // Resize
            window.addEventListener("resize", function() {
                engine.resize();
            });

            // And finally starts the render loop
            engine.runRenderLoop(function() {
                scene.render();
            });
        };

engine.runRenderLoop(() => {
    scene.render();
});

 engine.runRenderLoop(function() {
     scene.render();
 });