Babylon.js/Babylon/Cameras/babylon.camera.js

var __extends = (this && this.__extends) || function (d, b) {
    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
    function __() { this.constructor = d; }
    __.prototype = b.prototype;
    d.prototype = new __();
};
var BABYLON;
(function (BABYLON) {
    var VRCameraMetrics = (function () {
        function VRCameraMetrics() {
            this.compensateDistorsion = true;
        }
        Object.defineProperty(VRCameraMetrics.prototype, "aspectRatio", {
            get: function () {
                return this.hResolution / (2 * this.vResolution);
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(VRCameraMetrics.prototype, "aspectRatioFov", {
            get: function () {
                return (2 * Math.atan((this.postProcessScaleFactor * this.vScreenSize) / (2 * this.eyeToScreenDistance)));
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(VRCameraMetrics.prototype, "leftHMatrix", {
            get: function () {
                var meters = (this.hScreenSize / 4) - (this.lensSeparationDistance / 2);
                var h = (4 * meters) / this.hScreenSize;
                return BABYLON.Matrix.Translation(h, 0, 0);
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(VRCameraMetrics.prototype, "rightHMatrix", {
            get: function () {
                var meters = (this.hScreenSize / 4) - (this.lensSeparationDistance / 2);
                var h = (4 * meters) / this.hScreenSize;
                return BABYLON.Matrix.Translation(-h, 0, 0);
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(VRCameraMetrics.prototype, "leftPreViewMatrix", {
            get: function () {
                return BABYLON.Matrix.Translation(0.5 * this.interpupillaryDistance, 0, 0);
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(VRCameraMetrics.prototype, "rightPreViewMatrix", {
            get: function () {
                return BABYLON.Matrix.Translation(-0.5 * this.interpupillaryDistance, 0, 0);
            },
            enumerable: true,
            configurable: true
        });
        VRCameraMetrics.GetDefault = function () {
            var result = new VRCameraMetrics();
            result.hResolution = 1280;
            result.vResolution = 800;
            result.hScreenSize = 0.149759993;
            result.vScreenSize = 0.0935999975;
            result.vScreenCenter = 0.0467999987,
                result.eyeToScreenDistance = 0.0410000011;
            result.lensSeparationDistance = 0.0635000020;
            result.interpupillaryDistance = 0.0640000030;
            result.distortionK = [1.0, 0.219999999, 0.239999995, 0.0];
            result.chromaAbCorrection = [0.995999992, -0.00400000019, 1.01400006, 0.0];
            result.postProcessScaleFactor = 1.714605507808412;
            result.lensCenterOffset = 0.151976421;
            return result;
        };
        return VRCameraMetrics;
    })();
    BABYLON.VRCameraMetrics = VRCameraMetrics;
    var Camera = (function (_super) {
        __extends(Camera, _super);
        function Camera(name, position, scene) {
            _super.call(this, name, scene);
            this.position = position;
            // Members
            this.upVector = BABYLON.Vector3.Up();
            this.orthoLeft = null;
            this.orthoRight = null;
            this.orthoBottom = null;
            this.orthoTop = null;
            this.fov = 0.8;
            this.minZ = 1.0;
            this.maxZ = 10000.0;
            this.inertia = 0.9;
            this.mode = Camera.PERSPECTIVE_CAMERA;
            this.isIntermediate = false;
            this.viewport = new BABYLON.Viewport(0, 0, 1.0, 1.0);
            this.layerMask = 0x0FFFFFFF;
            this.fovMode = Camera.FOVMODE_VERTICAL_FIXED;
            // Camera rig members
            this.cameraRigMode = Camera.RIG_MODE_NONE;
            this._rigCameras = new Array();
            // Cache
            this._computedViewMatrix = BABYLON.Matrix.Identity();
            this._projectionMatrix = new BABYLON.Matrix();
            this._postProcesses = new Array();
            this._postProcessesTakenIndices = [];
            this._activeMeshes = new BABYLON.SmartArray(256);
            this._globalPosition = BABYLON.Vector3.Zero();
            scene.addCamera(this);
            if (!scene.activeCamera) {
                scene.activeCamera = this;
            }
        }
        Object.defineProperty(Camera, "PERSPECTIVE_CAMERA", {
            get: function () {
                return Camera._PERSPECTIVE_CAMERA;
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(Camera, "ORTHOGRAPHIC_CAMERA", {
            get: function () {
                return Camera._ORTHOGRAPHIC_CAMERA;
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(Camera, "FOVMODE_VERTICAL_FIXED", {
            get: function () {
                return Camera._FOVMODE_VERTICAL_FIXED;
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(Camera, "FOVMODE_HORIZONTAL_FIXED", {
            get: function () {
                return Camera._FOVMODE_HORIZONTAL_FIXED;
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(Camera, "RIG_MODE_NONE", {
            get: function () {
                return Camera._RIG_MODE_NONE;
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(Camera, "RIG_MODE_STEREOSCOPIC_ANAGLYPH", {
            get: function () {
                return Camera._RIG_MODE_STEREOSCOPIC_ANAGLYPH;
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(Camera, "RIG_MODE_STEREOSCOPIC_SIDEBYSIDE_PARALLEL", {
            get: function () {
                return Camera._RIG_MODE_STEREOSCOPIC_SIDEBYSIDE_PARALLEL;
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(Camera, "RIG_MODE_STEREOSCOPIC_SIDEBYSIDE_CROSSEYED", {
            get: function () {
                return Camera._RIG_MODE_STEREOSCOPIC_SIDEBYSIDE_CROSSEYED;
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(Camera, "RIG_MODE_STEREOSCOPIC_OVERUNDER", {
            get: function () {
                return Camera._RIG_MODE_STEREOSCOPIC_OVERUNDER;
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(Camera, "RIG_MODE_VR", {
            get: function () {
                return Camera._RIG_MODE_VR;
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(Camera.prototype, "globalPosition", {
            get: function () {
                return this._globalPosition;
            },
            enumerable: true,
            configurable: true
        });
        Camera.prototype.getActiveMeshes = function () {
            return this._activeMeshes;
        };
        Camera.prototype.isActiveMesh = function (mesh) {
            return (this._activeMeshes.indexOf(mesh) !== -1);
        };
        //Cache
        Camera.prototype._initCache = function () {
            _super.prototype._initCache.call(this);
            this._cache.position = new BABYLON.Vector3(Number.MAX_VALUE, Number.MAX_VALUE, Number.MAX_VALUE);
            this._cache.upVector = new BABYLON.Vector3(Number.MAX_VALUE, Number.MAX_VALUE, Number.MAX_VALUE);
            this._cache.mode = undefined;
            this._cache.minZ = undefined;
            this._cache.maxZ = undefined;
            this._cache.fov = undefined;
            this._cache.aspectRatio = undefined;
            this._cache.orthoLeft = undefined;
            this._cache.orthoRight = undefined;
            this._cache.orthoBottom = undefined;
            this._cache.orthoTop = undefined;
            this._cache.renderWidth = undefined;
            this._cache.renderHeight = undefined;
        };
        Camera.prototype._updateCache = function (ignoreParentClass) {
            if (!ignoreParentClass) {
                _super.prototype._updateCache.call(this);
            }
            var engine = this.getEngine();
            this._cache.position.copyFrom(this.position);
            this._cache.upVector.copyFrom(this.upVector);
            this._cache.mode = this.mode;
            this._cache.minZ = this.minZ;
            this._cache.maxZ = this.maxZ;
            this._cache.fov = this.fov;
            this._cache.aspectRatio = engine.getAspectRatio(this);
            this._cache.orthoLeft = this.orthoLeft;
            this._cache.orthoRight = this.orthoRight;
            this._cache.orthoBottom = this.orthoBottom;
            this._cache.orthoTop = this.orthoTop;
            this._cache.renderWidth = engine.getRenderWidth();
            this._cache.renderHeight = engine.getRenderHeight();
        };
        Camera.prototype._updateFromScene = function () {
            this.updateCache();
            this._update();
        };
        // Synchronized
        Camera.prototype._isSynchronized = function () {
            return this._isSynchronizedViewMatrix() && this._isSynchronizedProjectionMatrix();
        };
        Camera.prototype._isSynchronizedViewMatrix = function () {
            if (!_super.prototype._isSynchronized.call(this))
                return false;
            return this._cache.position.equals(this.position)
                && this._cache.upVector.equals(this.upVector)
                && this.isSynchronizedWithParent();
        };
        Camera.prototype._isSynchronizedProjectionMatrix = function () {
            var check = this._cache.mode === this.mode
                && this._cache.minZ === this.minZ
                && this._cache.maxZ === this.maxZ;
            if (!check) {
                return false;
            }
            var engine = this.getEngine();
            if (this.mode === Camera.PERSPECTIVE_CAMERA) {
                check = this._cache.fov === this.fov
                    && this._cache.aspectRatio === engine.getAspectRatio(this);
            }
            else {
                check = this._cache.orthoLeft === this.orthoLeft
                    && this._cache.orthoRight === this.orthoRight
                    && this._cache.orthoBottom === this.orthoBottom
                    && this._cache.orthoTop === this.orthoTop
                    && this._cache.renderWidth === engine.getRenderWidth()
                    && this._cache.renderHeight === engine.getRenderHeight();
            }
            return check;
        };
        // Controls
        Camera.prototype.attachControl = function (element) {
        };
        Camera.prototype.detachControl = function (element) {
        };
        Camera.prototype._update = function () {
            this._checkInputs();
            if (this.cameraRigMode !== Camera.RIG_MODE_NONE) {
                this._updateRigCameras();
            }
        };
        Camera.prototype._checkInputs = function () {
        };
        Camera.prototype.attachPostProcess = function (postProcess, insertAt) {
            if (insertAt === void 0) { insertAt = null; }
            if (!postProcess.isReusable() && this._postProcesses.indexOf(postProcess) > -1) {
                BABYLON.Tools.Error("You're trying to reuse a post process not defined as reusable.");
                return 0;
            }
            if (insertAt == null || insertAt < 0) {
                this._postProcesses.push(postProcess);
                this._postProcessesTakenIndices.push(this._postProcesses.length - 1);
                return this._postProcesses.length - 1;
            }
            var add = 0;
            if (this._postProcesses[insertAt]) {
                var start = this._postProcesses.length - 1;
                for (var i = start; i >= insertAt + 1; --i) {
                    this._postProcesses[i + 1] = this._postProcesses[i];
                }
                add = 1;
            }
            for (i = 0; i < this._postProcessesTakenIndices.length; ++i) {
                if (this._postProcessesTakenIndices[i] < insertAt) {
                    continue;
                }
                start = this._postProcessesTakenIndices.length - 1;
                for (var j = start; j >= i; --j) {
                    this._postProcessesTakenIndices[j + 1] = this._postProcessesTakenIndices[j] + add;
                }
                this._postProcessesTakenIndices[i] = insertAt;
                break;
            }
            if (!add && this._postProcessesTakenIndices.indexOf(insertAt) == -1) {
                this._postProcessesTakenIndices.push(insertAt);
            }
            var result = insertAt + add;
            this._postProcesses[result] = postProcess;
            return result;
        };
        Camera.prototype.detachPostProcess = function (postProcess, atIndices) {
            if (atIndices === void 0) { atIndices = null; }
            var result = [];
            if (!atIndices) {
                var length = this._postProcesses.length;
                for (var i = 0; i < length; i++) {
                    if (this._postProcesses[i] !== postProcess) {
                        continue;
                    }
                    delete this._postProcesses[i];
                    var index = this._postProcessesTakenIndices.indexOf(i);
                    this._postProcessesTakenIndices.splice(index, 1);
                }
            }
            else {
                atIndices = (atIndices instanceof Array) ? atIndices : [atIndices];
                for (i = 0; i < atIndices.length; i++) {
                    var foundPostProcess = this._postProcesses[atIndices[i]];
                    if (foundPostProcess !== postProcess) {
                        result.push(i);
                        continue;
                    }
                    delete this._postProcesses[atIndices[i]];
                    index = this._postProcessesTakenIndices.indexOf(atIndices[i]);
                    this._postProcessesTakenIndices.splice(index, 1);
                }
            }
            return result;
        };
        Camera.prototype.getWorldMatrix = function () {
            if (!this._worldMatrix) {
                this._worldMatrix = BABYLON.Matrix.Identity();
            }
            var viewMatrix = this.getViewMatrix();
            viewMatrix.invertToRef(this._worldMatrix);
            return this._worldMatrix;
        };
        Camera.prototype._getViewMatrix = function () {
            return BABYLON.Matrix.Identity();
        };
        Camera.prototype.getViewMatrix = function (force) {
            this._computedViewMatrix = this._computeViewMatrix(force);
            if (!force && this._isSynchronizedViewMatrix()) {
                return this._computedViewMatrix;
            }
            if (!this.parent || !this.parent.getWorldMatrix) {
                this._globalPosition.copyFrom(this.position);
            }
            else {
                if (!this._worldMatrix) {
                    this._worldMatrix = BABYLON.Matrix.Identity();
                }
                this._computedViewMatrix.invertToRef(this._worldMatrix);
                this._worldMatrix.multiplyToRef(this.parent.getWorldMatrix(), this._computedViewMatrix);
                this._globalPosition.copyFromFloats(this._computedViewMatrix.m[12], this._computedViewMatrix.m[13], this._computedViewMatrix.m[14]);
                this._computedViewMatrix.invert();
                this._markSyncedWithParent();
            }
            this._currentRenderId = this.getScene().getRenderId();
            return this._computedViewMatrix;
        };
        Camera.prototype._computeViewMatrix = function (force) {
            if (!force && this._isSynchronizedViewMatrix()) {
                return this._computedViewMatrix;
            }
            this._computedViewMatrix = this._getViewMatrix();
            this._currentRenderId = this.getScene().getRenderId();
            return this._computedViewMatrix;
        };
        Camera.prototype.getProjectionMatrix = function (force) {
            if (!force && this._isSynchronizedProjectionMatrix()) {
                return this._projectionMatrix;
            }
            var engine = this.getEngine();
            if (this.mode === Camera.PERSPECTIVE_CAMERA) {
                if (this.minZ <= 0) {
                    this.minZ = 0.1;
                }
                BABYLON.Matrix.PerspectiveFovLHToRef(this.fov, engine.getAspectRatio(this), this.minZ, this.maxZ, this._projectionMatrix, this.fovMode);
                return this._projectionMatrix;
            }
            var halfWidth = engine.getRenderWidth() / 2.0;
            var halfHeight = engine.getRenderHeight() / 2.0;
            BABYLON.Matrix.OrthoOffCenterLHToRef(this.orthoLeft || -halfWidth, this.orthoRight || halfWidth, this.orthoBottom || -halfHeight, this.orthoTop || halfHeight, this.minZ, this.maxZ, this._projectionMatrix);
            return this._projectionMatrix;
        };
        Camera.prototype.dispose = function () {
            // Remove from scene
            this.getScene().removeCamera(this);
            while (this._rigCameras.length > 0) {
                this._rigCameras.pop().dispose();
            }
            // Postprocesses
            for (var i = 0; i < this._postProcessesTakenIndices.length; ++i) {
                this._postProcesses[this._postProcessesTakenIndices[i]].dispose(this);
            }
        };
        // ---- Camera rigs section ----
        Camera.prototype.setCameraRigMode = function (mode, rigParams) {
            while (this._rigCameras.length > 0) {
                this._rigCameras.pop().dispose();
            }
            this.cameraRigMode = mode;
            this._cameraRigParams = {};
            switch (this.cameraRigMode) {
                case Camera.RIG_MODE_STEREOSCOPIC_ANAGLYPH:
                case Camera.RIG_MODE_STEREOSCOPIC_SIDEBYSIDE_PARALLEL:
                case Camera.RIG_MODE_STEREOSCOPIC_SIDEBYSIDE_CROSSEYED:
                case Camera.RIG_MODE_STEREOSCOPIC_OVERUNDER:
                    this._cameraRigParams.interaxialDistance = rigParams.interaxialDistance || 0.0637;
                    //we have to implement stereo camera calcultating left and right viewpoints from interaxialDistance and target, 
                    //not from a given angle as it is now, but until that complete code rewriting provisional stereoHalfAngle value is introduced
                    this._cameraRigParams.stereoHalfAngle = BABYLON.Tools.ToRadians(this._cameraRigParams.interaxialDistance / 0.0637);
                    this._rigCameras.push(this.createRigCamera(this.name + "_L", 0));
                    this._rigCameras.push(this.createRigCamera(this.name + "_R", 1));
                    break;
            }
            var postProcesses = new Array();
            switch (this.cameraRigMode) {
                case Camera.RIG_MODE_STEREOSCOPIC_ANAGLYPH:
                    postProcesses.push(new BABYLON.PassPostProcess(this.name + "_passthru", 1.0, this._rigCameras[0]));
                    this._rigCameras[0].isIntermediate = true;
                    postProcesses.push(new BABYLON.AnaglyphPostProcess(this.name + "_anaglyph", 1.0, this._rigCameras[1]));
                    postProcesses[1].onApply = function (effect) {
                        effect.setTextureFromPostProcess("leftSampler", postProcesses[0]);
                    };
                    break;
                case Camera.RIG_MODE_STEREOSCOPIC_SIDEBYSIDE_PARALLEL:
                case Camera.RIG_MODE_STEREOSCOPIC_SIDEBYSIDE_CROSSEYED:
                case Camera.RIG_MODE_STEREOSCOPIC_OVERUNDER:
                    var isStereoscopicHoriz = (this.cameraRigMode === Camera.RIG_MODE_STEREOSCOPIC_SIDEBYSIDE_PARALLEL || this.cameraRigMode === Camera.RIG_MODE_STEREOSCOPIC_SIDEBYSIDE_CROSSEYED);
                    var firstCamIndex = (this.cameraRigMode === Camera.RIG_MODE_STEREOSCOPIC_SIDEBYSIDE_CROSSEYED) ? 1 : 0;
                    var secondCamIndex = 1 - firstCamIndex;
                    postProcesses.push(new BABYLON.PassPostProcess(this.name + "_passthru", 1.0, this._rigCameras[firstCamIndex]));
                    this._rigCameras[firstCamIndex].isIntermediate = true;
                    postProcesses.push(new BABYLON.StereoscopicInterlacePostProcess(this.name + "_stereoInterlace", this._rigCameras[secondCamIndex], postProcesses[0], isStereoscopicHoriz));
                    break;
                case Camera.RIG_MODE_VR:
                    this._rigCameras.push(this.createRigCamera(this.name + "_L", 0));
                    this._rigCameras.push(this.createRigCamera(this.name + "_R", 1));
                    var metrics = rigParams.vrCameraMetrics || VRCameraMetrics.GetDefault();
                    this._rigCameras[0]._cameraRigParams.vrMetrics = metrics;
                    this._rigCameras[0].viewport = new BABYLON.Viewport(0, 0, 0.5, 1.0);
                    this._rigCameras[0]._cameraRigParams.vrWorkMatrix = new BABYLON.Matrix();
                    this._rigCameras[0]._cameraRigParams.vrHMatrix = metrics.leftHMatrix;
                    this._rigCameras[0]._cameraRigParams.vrPreViewMatrix = metrics.leftPreViewMatrix;
                    this._rigCameras[0].getProjectionMatrix = this._rigCameras[0]._getVRProjectionMatrix;
                    if (metrics.compensateDistorsion) {
                        postProcesses.push(new BABYLON.VRDistortionCorrectionPostProcess("VR_Distort_Compensation_Left", this._rigCameras[0], false, metrics));
                    }
                    this._rigCameras[1]._cameraRigParams.vrMetrics = this._rigCameras[0]._cameraRigParams.vrMetrics;
                    this._rigCameras[1].viewport = new BABYLON.Viewport(0.5, 0, 0.5, 1.0);
                    this._rigCameras[1]._cameraRigParams.vrWorkMatrix = new BABYLON.Matrix();
                    this._rigCameras[1]._cameraRigParams.vrHMatrix = metrics.rightHMatrix;
                    this._rigCameras[1]._cameraRigParams.vrPreViewMatrix = metrics.rightPreViewMatrix;
                    this._rigCameras[1].getProjectionMatrix = this._rigCameras[1]._getVRProjectionMatrix;
                    if (metrics.compensateDistorsion) {
                        postProcesses.push(new BABYLON.VRDistortionCorrectionPostProcess("VR_Distort_Compensation_Right", this._rigCameras[1], true, metrics));
                    }
                    break;
            }
            this._update();
        };
        Camera.prototype._getVRProjectionMatrix = function () {
            BABYLON.Matrix.PerspectiveFovLHToRef(this._cameraRigParams.vrMetrics.aspectRatioFov, this._cameraRigParams.vrMetrics.aspectRatio, this.minZ, this.maxZ, this._cameraRigParams.vrWorkMatrix);
            this._cameraRigParams.vrWorkMatrix.multiplyToRef(this._cameraRigParams.vrHMatrix, this._projectionMatrix);
            return this._projectionMatrix;
        };
        Camera.prototype.setCameraRigParameter = function (name, value) {
            this._cameraRigParams[name] = value;
            //provisionnally:
            if (name === "interaxialDistance") {
                this._cameraRigParams.stereoHalfAngle = BABYLON.Tools.ToRadians(value);
            }
        };
        /**
         * May needs to be overridden by children so sub has required properties to be copied
         */
        Camera.prototype.createRigCamera = function (name, cameraIndex) {
            return null;
        };
        /**
         * May needs to be overridden by children
         */
        Camera.prototype._updateRigCameras = function () {
            for (var i = 0; i < this._rigCameras.length; i++) {
                this._rigCameras[i].minZ = this.minZ;
                this._rigCameras[i].maxZ = this.maxZ;
                this._rigCameras[i].fov = this.fov;
            }
            // only update viewport when ANAGLYPH
            if (this.cameraRigMode === Camera.RIG_MODE_STEREOSCOPIC_ANAGLYPH) {
                this._rigCameras[0].viewport = this._rigCameras[1].viewport = this.viewport;
            }
        };
        // Statics
        Camera._PERSPECTIVE_CAMERA = 0;
        Camera._ORTHOGRAPHIC_CAMERA = 1;
        Camera._FOVMODE_VERTICAL_FIXED = 0;
        Camera._FOVMODE_HORIZONTAL_FIXED = 1;
        Camera._RIG_MODE_NONE = 0;
        Camera._RIG_MODE_STEREOSCOPIC_ANAGLYPH = 10;
        Camera._RIG_MODE_STEREOSCOPIC_SIDEBYSIDE_PARALLEL = 11;
        Camera._RIG_MODE_STEREOSCOPIC_SIDEBYSIDE_CROSSEYED = 12;
        Camera._RIG_MODE_STEREOSCOPIC_OVERUNDER = 13;
        Camera._RIG_MODE_VR = 20;
        return Camera;
    })(BABYLON.Node);
    BABYLON.Camera = Camera;
})(BABYLON || (BABYLON = {}));
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