Function fp64LowPart

docs/app/js/sanddance-app.js:68910–68912

(a)

    return out;
}
function fp64LowPart(a) {
    return a - Math.fround(a);
}
function fp64ifyMatrix4(matrix) {
    var matrixFP64 = new Float32Array(32);
    for(var i = 0; i < 4; ++i)for(var j = 0; j < 4; ++j){