/**
* @brief Reads an fsb file and returns a clip constructed from the the content of the fsb file.
* @param[in] data The binary data from the fsb file.
* @return A clip with the track data imported from the fsb file, null if there was some error during loading.
*/
public static Clip Read(byte[] data) {
DataParser parser = new DataParser();
parser.ExtractData(data, false, 0.0);
if (parser.Valid()) {
Rig rig = new Rig();
// add hardcoded bone names of fsb file
rig.AddBone("Neck");
rig.AddBone("EyeLeft");
rig.AddBone("EyeRight");
for (int i = 0; i < parser.fsBlendShapeNames.Length; i++) {
rig.AddShape(parser.fsBlendShapeNames[i]);
}
Clip clip = new Clip(rig);
while (parser.CountAvailableTracks() > 0) {
TrackData track_data = parser.Dequeue();
if (!track_data.TrackSuccess) {
// do not save the state if the tracking data is not valid
Debug.LogWarning("this frame doesn't contain valid tracking data");
continue;
}
RigState state = clip.NewState(track_data.TimeStamp);
state.SetTrackingSuccessful(track_data.TrackSuccess);
if (rig.NumShapes() != track_data.n_coefficients()) {
Debug.LogError("num blendshapes do not agree in file with " + rig.NumShapes() +
" in rig and " + track_data.n_coefficients() + " in state");
return null;
}
// Assume the head translation to be joint 0 (Neck)
state.SetBoneTranslation(0, track_data.HeadTranslation());
// bone indices same as the order when added to the rig
state.SetBoneRotation(0, track_data.HeadRotation());
state.SetBoneRotation(1, track_data.LeftEyeRotation());
state.SetBoneRotation(2, track_data.RightEyeRotation());
for (int i = 0; i < track_data.n_coefficients(); i++) {
state.SetBlendshapeCoefficient(i, track_data.Coefficient[i]);
}
}
return clip;
} else {
Debug.LogError("cannot parse fsb file");
}
return null;
}
//! @returns a rig build from a set of blendshape names
static public Rig GetRigFromBlendShapeNames(string [] blendshape_names) {
Rig rig = new Rig();
rig.AddBone("Neck");
rig.AddBone("EyeLeft");
rig.AddBone("EyeRight");
for (int i = 0; i < blendshape_names.Length; i++) {
rig.AddShape(blendshape_names[i]);
}
return rig;
}
//! duplicate this rig (deep copy)
public Rig Duplicate() {
Rig rig = new Rig ();
for (int i = 0; i < NumShapes(); i++) rig.AddShape(ShapeName(i));
for (int i = 0; i < NumBones() ; i++) rig.AddBone(BoneName(i));
return rig;
}