Function getViewProjectionMatrices

docs/app/js/sanddance-app.js:79773–79859

(_ref2)

    return new (0, _mathGl.Matrix4)(viewport.viewProjectionMatrix).invert().transform(center);
}
function getViewProjectionMatrices(_ref2) {
    var viewport = _ref2.viewport, shadowMatrices = _ref2.shadowMatrices;
    var projectionMatrices = [];
    var pixelUnprojectionMatrix = viewport.pixelUnprojectionMatrix;
    var farZ = viewport.isGeospatial ? undefined : 1;
    var corners = [
        [
            0,
            0,
            farZ
        ],
        [
            viewport.width,
            0,
            farZ
        ],
        [
            0,
            viewport.height,
            farZ
        ],
        [
            viewport.width,
            viewport.height,
            farZ
        ],
        [
            0,
            0,
            -1
        ],
        [
            viewport.width,
            0,
            -1
        ],
        [
            0,
            viewport.height,
            -1
        ],
        [
            viewport.width,
            viewport.height,
            -1
        ]
    ].map(function(pixel) {
        return screenToCommonSpace(pixel, pixelUnprojectionMatrix);
    });
    var _iterator = _createForOfIteratorHelper(shadowMatrices), _step;
    try {
        var _loop = function _loop() {
            var shadowMatrix = _step.value;
            var viewMatrix = shadowMatrix.clone().translate(new (0, _mathGl.Vector3)(viewport.center).negate());
            var positions = corners.map(function(corner) {
                return viewMatrix.transform(corner);
            });
            var projectionMatrix = new (0, _mathGl.Matrix4)().ortho({