function unapplyValueTransform(input, offset, scale) {
  return `((${input} - float(${offset})) / float(${scale}))`;
}
Returns a shader statement that applies the inverse of the
value transform to the given value, based on the given offset
and scale.

@param {string} input The input value
@param {string} offset The offset
@param {string} scale The scale
@returns {string} The statement