Ports demo to native VR API #4
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| /** | ||
| * @author dmarcos / https://github.com/dmarcos | ||
| */ | ||
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| THREE.VRControls = function ( camera, done ) { | ||
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| this._camera = camera; | ||
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| this._init = function () { | ||
| var self = this; | ||
| if ( !navigator.mozGetVRDevices && !navigator.getVRDevices ) { | ||
| if ( done ) { | ||
| done("Your browser is not VR Ready"); | ||
| } | ||
| return; | ||
| } | ||
| if ( navigator.getVRDevices ) { | ||
| navigator.getVRDevices().then( gotVRDevices ); | ||
| } else { | ||
| navigator.mozGetVRDevices( gotVRDevices ); | ||
| } | ||
| function gotVRDevices( devices ) { | ||
| var vrInput; | ||
| var error; | ||
| for ( var i = 0; i < devices.length; ++i ) { | ||
| if ( devices[i] instanceof PositionSensorVRDevice ) { | ||
| vrInput = devices[i] | ||
| self._vrInput = vrInput; | ||
| break; // We keep the first we encounter | ||
| } | ||
| } | ||
| if ( done ) { | ||
| if ( !vrInput ) { | ||
| error = 'HMD not available'; | ||
| } | ||
| done( error ); | ||
| } | ||
| } | ||
| }; | ||
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| this._init(); | ||
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| this.update = function() { | ||
| var camera = this._camera; | ||
| var quat; | ||
| var vrState = this.getVRState(); | ||
| if ( !vrState ) { | ||
| return; | ||
| } | ||
| // Applies head rotation from sensors data. | ||
| if ( camera ) { | ||
| camera.quaternion.fromArray( vrState.hmd.rotation ); | ||
| } | ||
| }; | ||
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| this.zeroSensor = function() { | ||
| var vrInput = this._vrInput; | ||
| if ( !vrInput ) { | ||
| return; | ||
| } | ||
| vrInput.zeroSensor(); | ||
| }; | ||
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| this.getVRState = function() { | ||
| var vrInput = this._vrInput; | ||
| var orientation; | ||
| var vrState; | ||
| if ( !vrInput ) { | ||
| return null; | ||
| } | ||
| orientation = vrInput.getState().orientation; | ||
| vrState = { | ||
| hmd : { | ||
| rotation : [ | ||
| orientation.x, | ||
| orientation.y, | ||
| orientation.z, | ||
| orientation.w | ||
| ] | ||
| } | ||
| }; | ||
| return vrState; | ||
| }; | ||
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| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,238 @@ | ||
| /** | ||
| * @author dmarcos / https://github.com/dmarcos | ||
| * | ||
| * It handles stereo rendering | ||
| * If mozGetVRDevices and getVRDevices APIs are not available it gracefuly falls back to a | ||
| * regular renderer | ||
| * | ||
| * The HMD supported is the Oculus DK1 and The Web API doesn't currently allow | ||
| * to query for the display resolution (only the chrome API allows it). | ||
| * The dimensions of the screen are temporarly hardcoded (1280 x 800). | ||
| * | ||
| * For VR mode to work it has to be used with the Oculus enabled builds of Firefox or Chrome: | ||
| * | ||
| * Firefox: | ||
| * | ||
| * OSX: http://people.mozilla.com/~vladimir/vr/firefox-33.0a1.en-US.mac.dmg | ||
| * WIN: http://people.mozilla.com/~vladimir/vr/firefox-33.0a1.en-US.win64-x86_64.zip | ||
|
There was a problem hiding this comment. These two links 404 Edit: however, this 200s: http://vrhelloworld.com/builds/ |
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| * | ||
| * Chrome builds: | ||
| * | ||
| * https://drive.google.com/folderview?id=0BzudLt22BqGRbW9WTHMtOWMzNjQ&usp=sharing#list | ||
| * | ||
| */ | ||
| THREE.VREffect = function ( renderer, done ) { | ||
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| var cameraLeft = new THREE.PerspectiveCamera(); | ||
| var cameraRight = new THREE.PerspectiveCamera(); | ||
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| this._renderer = renderer; | ||
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| this._init = function() { | ||
| var self = this; | ||
| if ( !navigator.mozGetVRDevices && !navigator.getVRDevices ) { | ||
| if ( done ) { | ||
| done("Your browser is not VR Ready"); | ||
| } | ||
| return; | ||
| } | ||
| if ( navigator.getVRDevices ) { | ||
| navigator.getVRDevices().then( gotVRDevices ); | ||
| } else { | ||
| navigator.mozGetVRDevices( gotVRDevices ); | ||
| } | ||
| function gotVRDevices( devices ) { | ||
| var vrHMD; | ||
| var error; | ||
| for ( var i = 0; i < devices.length; ++i ) { | ||
| if ( devices[i] instanceof HMDVRDevice ) { | ||
| vrHMD = devices[i]; | ||
| self._vrHMD = vrHMD; | ||
| self.leftEyeTranslation = vrHMD.getEyeTranslation( "left" ); | ||
| self.rightEyeTranslation = vrHMD.getEyeTranslation( "right" ); | ||
| self.leftEyeFOV = vrHMD.getRecommendedEyeFieldOfView( "left" ); | ||
| self.rightEyeFOV = vrHMD.getRecommendedEyeFieldOfView( "right" ); | ||
| break; // We keep the first we encounter | ||
| } | ||
| } | ||
| if ( done ) { | ||
| if ( !vrHMD ) { | ||
| error = 'HMD not available'; | ||
| } | ||
| done( error ); | ||
| } | ||
| } | ||
| }; | ||
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| this._init(); | ||
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| this.render = function ( scene, camera ) { | ||
| var renderer = this._renderer; | ||
| var vrHMD = this._vrHMD; | ||
| renderer.enableScissorTest( false ); | ||
| // VR render mode if HMD is available | ||
| if ( vrHMD ) { | ||
| this.renderStereo.apply( this, arguments ); | ||
| return; | ||
| } | ||
| // Regular render mode if not HMD | ||
| renderer.render.apply( this._renderer, arguments ); | ||
| }; | ||
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| this.renderStereo = function( scene, camera, renderTarget, forceClear ) { | ||
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| var leftEyeTranslation = this.leftEyeTranslation; | ||
| var rightEyeTranslation = this.rightEyeTranslation; | ||
| var renderer = this._renderer; | ||
| var rendererWidth = renderer.domElement.width / renderer.devicePixelRatio; | ||
| var rendererHeight = renderer.domElement.height / renderer.devicePixelRatio; | ||
| var eyeDivisionLine = rendererWidth / 2; | ||
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| renderer.enableScissorTest( true ); | ||
| renderer.clear(); | ||
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| if ( camera.parent === undefined ) { | ||
| camera.updateMatrixWorld(); | ||
| } | ||
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| cameraLeft.projectionMatrix = this.FovToProjection( this.leftEyeFOV, true, camera.near, camera.far ); | ||
| cameraRight.projectionMatrix = this.FovToProjection( this.rightEyeFOV, true, camera.near, camera.far ); | ||
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| camera.matrixWorld.decompose( cameraLeft.position, cameraLeft.quaternion, cameraLeft.scale ); | ||
| camera.matrixWorld.decompose( cameraRight.position, cameraRight.quaternion, cameraRight.scale ); | ||
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| cameraLeft.translateX( leftEyeTranslation.x ); | ||
| cameraRight.translateX( rightEyeTranslation.x ); | ||
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| // render left eye | ||
| renderer.setViewport( 0, 0, eyeDivisionLine, rendererHeight ); | ||
| renderer.setScissor( 0, 0, eyeDivisionLine, rendererHeight ); | ||
| renderer.render( scene, cameraLeft ); | ||
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| // render right eye | ||
| renderer.setViewport( eyeDivisionLine, 0, eyeDivisionLine, rendererHeight ); | ||
| renderer.setScissor( eyeDivisionLine, 0, eyeDivisionLine, rendererHeight ); | ||
| renderer.render( scene, cameraRight ); | ||
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| }; | ||
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| this.setSize = function( width, height ) { | ||
| renderer.setSize( width, height ); | ||
| }; | ||
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| this.setFullScreen = function( enable ) { | ||
| var renderer = this._renderer; | ||
| var vrHMD = this._vrHMD; | ||
| var canvasOriginalSize = this._canvasOriginalSize; | ||
| if (!vrHMD) { | ||
| return; | ||
| } | ||
| // If state doesn't change we do nothing | ||
| if ( enable === this._fullScreen ) { | ||
| return; | ||
| } | ||
| this._fullScreen = !!enable; | ||
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| // VR Mode disabled | ||
| if ( !enable ) { | ||
| // Restores canvas original size | ||
| renderer.setSize( canvasOriginalSize.width, canvasOriginalSize.height ); | ||
| return; | ||
| } | ||
| // VR Mode enabled | ||
| this._canvasOriginalSize = { | ||
| width: renderer.domElement.width, | ||
| height: renderer.domElement.height | ||
| }; | ||
| // Hardcoded Rift display size | ||
| renderer.setSize( 1280, 800, false ); | ||
| this.startFullscreen(); | ||
| }; | ||
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| this.startFullscreen = function() { | ||
| var self = this; | ||
| var renderer = this._renderer; | ||
| var vrHMD = this._vrHMD; | ||
| var canvas = renderer.domElement; | ||
| var fullScreenChange = | ||
| canvas.mozRequestFullScreen? 'mozfullscreenchange' : 'webkitfullscreenchange'; | ||
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| document.addEventListener( fullScreenChange, onFullScreenChanged, false ); | ||
| function onFullScreenChanged() { | ||
| if ( !document.mozFullScreenElement && !document.webkitFullScreenElement ) { | ||
| self.setFullScreen( false ); | ||
| } | ||
| } | ||
| if ( canvas.mozRequestFullScreen ) { | ||
| canvas.mozRequestFullScreen( { vrDisplay: vrHMD } ); | ||
| } else { | ||
| canvas.webkitRequestFullscreen( { vrDisplay: vrHMD } ); | ||
| } | ||
| }; | ||
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| this.FovToNDCScaleOffset = function( fov ) { | ||
| var pxscale = 2.0 / (fov.leftTan + fov.rightTan); | ||
| var pxoffset = (fov.leftTan - fov.rightTan) * pxscale * 0.5; | ||
| var pyscale = 2.0 / (fov.upTan + fov.downTan); | ||
| var pyoffset = (fov.upTan - fov.downTan) * pyscale * 0.5; | ||
| return { scale: [pxscale, pyscale], offset: [pxoffset, pyoffset] }; | ||
| }; | ||
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| this.FovPortToProjection = function( fov, rightHanded /* = true */, zNear /* = 0.01 */, zFar /* = 10000.0 */ ) | ||
| { | ||
| rightHanded = rightHanded === undefined ? true : rightHanded; | ||
| zNear = zNear === undefined ? 0.01 : zNear; | ||
| zFar = zFar === undefined ? 10000.0 : zFar; | ||
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| var handednessScale = rightHanded ? -1.0 : 1.0; | ||
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| // start with an identity matrix | ||
| var mobj = new THREE.Matrix4(); | ||
| var m = mobj.elements; | ||
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| // and with scale/offset info for normalized device coords | ||
| var scaleAndOffset = this.FovToNDCScaleOffset(fov); | ||
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| // X result, map clip edges to [-w,+w] | ||
| m[0*4+0] = scaleAndOffset.scale[0]; | ||
| m[0*4+1] = 0.0; | ||
| m[0*4+2] = scaleAndOffset.offset[0] * handednessScale; | ||
| m[0*4+3] = 0.0; | ||
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| // Y result, map clip edges to [-w,+w] | ||
| // Y offset is negated because this proj matrix transforms from world coords with Y=up, | ||
| // but the NDC scaling has Y=down (thanks D3D?) | ||
| m[1*4+0] = 0.0; | ||
| m[1*4+1] = scaleAndOffset.scale[1]; | ||
| m[1*4+2] = -scaleAndOffset.offset[1] * handednessScale; | ||
| m[1*4+3] = 0.0; | ||
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| // Z result (up to the app) | ||
| m[2*4+0] = 0.0; | ||
| m[2*4+1] = 0.0; | ||
| m[2*4+2] = zFar / (zNear - zFar) * -handednessScale; | ||
| m[2*4+3] = (zFar * zNear) / (zNear - zFar); | ||
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| // W result (= Z in) | ||
| m[3*4+0] = 0.0; | ||
| m[3*4+1] = 0.0; | ||
| m[3*4+2] = handednessScale; | ||
| m[3*4+3] = 0.0; | ||
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| mobj.transpose(); | ||
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| return mobj; | ||
| }; | ||
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| this.FovToProjection = function( fov, rightHanded /* = true */, zNear /* = 0.01 */, zFar /* = 10000.0 */ ) | ||
| { | ||
| var fovPort = { | ||
| upTan: Math.tan(fov.upDegrees * Math.PI / 180.0), | ||
| downTan: Math.tan(fov.downDegrees * Math.PI / 180.0), | ||
| leftTan: Math.tan(fov.leftDegrees * Math.PI / 180.0), | ||
| rightTan: Math.tan(fov.rightDegrees * Math.PI / 180.0) | ||
| }; | ||
| return this.FovPortToProjection(fovPort, rightHanded, zNear, zFar); | ||
| }; | ||
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| }; | ||
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These should be left as // for display within https iframes. Makes it harder for dev, I know :(