/// <summary>
/// Serialize animation data into a stream.
/// </summary>
public void ToStream(Stream stream, float startTime)
{
PoseCurves defaultCurves = new PoseCurves();
var writer = new BinaryWriter(stream);
InputAnimationSerializationUtils.WriteHeader(writer);
PoseCurvesToStream(writer, cameraCurves, startTime);
InputAnimationSerializationUtils.WriteBoolCurve(writer, handTrackedCurveLeft, startTime);
InputAnimationSerializationUtils.WriteBoolCurve(writer, handTrackedCurveRight, startTime);
InputAnimationSerializationUtils.WriteBoolCurve(writer, handPinchCurveLeft, startTime);
InputAnimationSerializationUtils.WriteBoolCurve(writer, handPinchCurveRight, startTime);
for (int i = 0; i < jointCount; ++i)
{
if (!handJointCurvesLeft.TryGetValue((TrackedHandJoint)i, out PoseCurves curves))
{
curves = defaultCurves;
}
PoseCurvesToStream(writer, curves, startTime);
}
for (int i = 0; i < jointCount; ++i)
{
if (!handJointCurvesRight.TryGetValue((TrackedHandJoint)i, out PoseCurves curves))
{
curves = defaultCurves;
}
PoseCurvesToStream(writer, curves, startTime);
}
InputAnimationSerializationUtils.WriteMarkerList(writer, markers, startTime);
}
private static void PoseCurvesFromStream(BinaryReader reader, PoseCurves curves)
{
InputAnimationSerializationUtils.ReadFloatCurve(reader, curves.PositionX);
InputAnimationSerializationUtils.ReadFloatCurve(reader, curves.PositionY);
InputAnimationSerializationUtils.ReadFloatCurve(reader, curves.PositionZ);
InputAnimationSerializationUtils.ReadFloatCurve(reader, curves.RotationX);
InputAnimationSerializationUtils.ReadFloatCurve(reader, curves.RotationY);
InputAnimationSerializationUtils.ReadFloatCurve(reader, curves.RotationZ);
InputAnimationSerializationUtils.ReadFloatCurve(reader, curves.RotationW);
}
private static void PoseCurvesToStream(BinaryWriter writer, PoseCurves curves, float startTime)
{
InputAnimationSerializationUtils.WriteFloatCurve(writer, curves.PositionX, startTime);
InputAnimationSerializationUtils.WriteFloatCurve(writer, curves.PositionY, startTime);
InputAnimationSerializationUtils.WriteFloatCurve(writer, curves.PositionZ, startTime);
InputAnimationSerializationUtils.WriteFloatCurve(writer, curves.RotationX, startTime);
InputAnimationSerializationUtils.WriteFloatCurve(writer, curves.RotationY, startTime);
InputAnimationSerializationUtils.WriteFloatCurve(writer, curves.RotationZ, startTime);
InputAnimationSerializationUtils.WriteFloatCurve(writer, curves.RotationW, startTime);
}
private static void AddPoseKey(PoseCurves curves, float time, MixedRealityPose pose)
{
AddFloatKey(curves.PositionX, time, pose.Position.x);
AddFloatKey(curves.PositionY, time, pose.Position.y);
AddFloatKey(curves.PositionZ, time, pose.Position.z);
AddFloatKey(curves.RotationX, time, pose.Rotation.x);
AddFloatKey(curves.RotationY, time, pose.Rotation.y);
AddFloatKey(curves.RotationZ, time, pose.Rotation.z);
AddFloatKey(curves.RotationW, time, pose.Rotation.w);
}
public InputAnimation()
{
handTrackedCurveLeft = new AnimationCurve();
handTrackedCurveRight = new AnimationCurve();
handPinchCurveLeft = new AnimationCurve();
handPinchCurveRight = new AnimationCurve();
handJointCurvesLeft = new Dictionary <TrackedHandJoint, PoseCurves>();
handJointCurvesRight = new Dictionary <TrackedHandJoint, PoseCurves>();
cameraCurves = new PoseCurves();
markers = new List <InputAnimationMarker>();
}
/// Add a keyframe for one hand joint.
private void AddHandJointKey(float time, TrackedHandJoint joint, MixedRealityPose jointPose, Dictionary <TrackedHandJoint, PoseCurves> jointCurves, float positionThreshold, float rotationThreshold)
{
if (!jointCurves.TryGetValue(joint, out PoseCurves curves))
{
curves = new PoseCurves();
jointCurves.Add(joint, curves);
}
AddPoseKeyFiltered(curves, time, jointPose, positionThreshold, rotationThreshold);
duration = Mathf.Max(duration, time);
}
private static MixedRealityPose EvaluatePose(PoseCurves curves, float time)
{
float px = curves.PositionX.Evaluate(time);
float py = curves.PositionY.Evaluate(time);
float pz = curves.PositionZ.Evaluate(time);
float rx = curves.RotationX.Evaluate(time);
float ry = curves.RotationY.Evaluate(time);
float rz = curves.RotationZ.Evaluate(time);
float rw = curves.RotationW.Evaluate(time);
var pose = new MixedRealityPose();
pose.Position = new Vector3(px, py, pz);
pose.Rotation = new Quaternion(rx, ry, rz, rw);
pose.Rotation.Normalize();
return(pose);
}
/// <summary>
/// Deserialize animation data from a stream.
/// </summary>
public void FromStream(Stream stream)
{
var reader = new BinaryReader(stream);
InputAnimationSerializationUtils.ReadHeader(reader, out int versionMajor, out int versionMinor);
if (versionMajor != 1 || versionMinor != 0)
{
Debug.LogError("Only version 1.0 of input animation file format is supported.");
return;
}
PoseCurvesFromStream(reader, cameraCurves);
InputAnimationSerializationUtils.ReadBoolCurve(reader, handTrackedCurveLeft);
InputAnimationSerializationUtils.ReadBoolCurve(reader, handTrackedCurveRight);
InputAnimationSerializationUtils.ReadBoolCurve(reader, handPinchCurveLeft);
InputAnimationSerializationUtils.ReadBoolCurve(reader, handPinchCurveRight);
for (int i = 0; i < jointCount; ++i)
{
if (!handJointCurvesLeft.TryGetValue((TrackedHandJoint)i, out PoseCurves curves))
{
curves = new PoseCurves();
handJointCurvesLeft.Add((TrackedHandJoint)i, curves);
}
PoseCurvesFromStream(reader, curves);
}
for (int i = 0; i < jointCount; ++i)
{
if (!handJointCurvesRight.TryGetValue((TrackedHandJoint)i, out PoseCurves curves))
{
curves = new PoseCurves();
handJointCurvesRight.Add((TrackedHandJoint)i, curves);
}
PoseCurvesFromStream(reader, curves);
}
InputAnimationSerializationUtils.ReadMarkerList(reader, markers);
ComputeDuration();
}
/// <summary>
/// Make sure the pose animation curves for the given hand joint exist.
/// </summary>
public PoseCurves CreateHandJointCurves(Handedness handedness, TrackedHandJoint joint)
{
if (handedness == Handedness.Left)
{
if (!handJointCurvesLeft.TryGetValue(joint, out PoseCurves curves))
{
curves = new PoseCurves();
handJointCurvesLeft.Add(joint, curves);
}
return(curves);
}
else if (handedness == Handedness.Right)
{
if (!handJointCurvesRight.TryGetValue(joint, out PoseCurves curves))
{
curves = new PoseCurves();
handJointCurvesRight.Add(joint, curves);
}
return(curves);
}
return(null);
}
/// Add a pose keyframe to an animation curve.
/// Keys are only added if the value changes sufficiently.
private static void AddPoseKeyFiltered(PoseCurves curves, float time, MixedRealityPose pose, float positionThreshold, float rotationThreshold)
{
AddPositionKeyFiltered(curves.PositionX, curves.PositionY, curves.PositionZ, time, pose.Position, positionThreshold);
AddRotationKeyFiltered(curves.RotationX, curves.RotationY, curves.RotationZ, curves.RotationW, time, pose.Rotation, rotationThreshold);
}
/// <summary>
/// Get animation curves for the pose of the given hand joint, if they exist.
/// </summary>
public bool TryGetHandJointCurves(Handedness handedness, TrackedHandJoint joint, out PoseCurves curves)
{
if (handedness == Handedness.Left)
{
return(handJointCurvesLeft.TryGetValue(joint, out curves));
}
else if (handedness == Handedness.Right)
{
return(handJointCurvesRight.TryGetValue(joint, out curves));
}
curves = null;
return(false);
}