protected void setupCallback(CallbackRegistration e) {
super.setupCallback(e);
if (e.getEvent().equals(GLASS2PREVIEWH)) {
synchronized (this) {
if (!isSetup) setupMatrices();
JSONObject hs = new JSONObject();
hs.put("h", StringifyJSONDoubleArray(hGlassToSmall1280x720));
hs.put("hinv", StringifyJSONDoubleArray(hSmallToGlass1280x720));
makeCall(GLASS2PREVIEWH, "'" + hs.toJSONString() + "'");
}
}
}
