keyframebin.js

var fs = require('fs')
var data = JSON.parse(fs.readFileSync('keyframes.json'))
for (var key in data.user.property) {
  console.log(key)
}


// console.log(data.user.property.position)
var position = data.user.property.position
var vertices = []
data.user.property.face_vertices.forEach((v) => {
  vertices.push.apply(vertices, v)
})
console.log(vertices.length)

var buffer = new Buffer(vertices.length * 4)
for (var i = 0; i < vertices.length; i++) {
  buffer.writeFloatLE(vertices[i], i * 4)
}

fs.writeFileSync('position.json', JSON.stringify(vertices))
fs.writeFileSync('position.bin', buffer)