private void ConformAnimationBindPoses(Skeleton skeleton, Skeleton conformToSkeleton)
{
foreach (var trackGroup in Root.TrackGroups)
{
for (var i = 0; i < trackGroup.TransformTracks.Count; i++)
{
var track = trackGroup.TransformTracks[i];
var bone = skeleton.GetBoneByName(track.Name);
if (bone == null)
{
string msg = String.Format("Animation track references bone '{0}' that cannot be found in the skeleton.", track.Name);
throw new ExportException(msg);
}
var conformingBone = conformToSkeleton.GetBoneByName(track.Name);
if (conformingBone == null)
{
string msg = String.Format("Animation track references bone '{0}' that cannot be found in the conforming skeleton.", track.Name);
throw new ExportException(msg);
}
var keyframes = track.ToKeyframes();
keyframes.SwapBindPose(bone.OriginalTransform, conformingBone.Transform.ToMatrix4());
var newTrack = TransformTrack.FromKeyframes(keyframes);
newTrack.Flags = track.Flags;
newTrack.Name = track.Name;
newTrack.ParentAnimation = track.ParentAnimation;
trackGroup.TransformTracks[i] = newTrack;
}
}
}
public List <animation> ExportTrack(TransformTrack track)
{
var anims = new List <animation>();
var name = "Bone_" + track.Name.Replace(' ', '_');
// Export all tracks in a single transform
anims.AddRange(ExportKeyframeTrack(track, name + "_Transform", name + "/Transform"));
return(anims);
}
private void ConformAnimationBindPoses(Skeleton skeleton, Skeleton conformToSkeleton)
{
if (Root.TrackGroups == null)
{
return;
}
foreach (var trackGroup in Root.TrackGroups)
{
for (var i = 0; i < trackGroup.TransformTracks.Count; i++)
{
var track = trackGroup.TransformTracks[i];
var bone = skeleton.GetBoneByName(track.Name);
if (bone == null)
{
//Dummy_Foot -> Dummy_Foot_01
bone = skeleton.GetBoneByName(track.Name + "_01");
}
if (bone == null)
{
throw new ExportException($"Animation track references bone '{track.Name}' that cannot be found in the skeleton '{skeleton.Name}'.");
}
var conformingBone = conformToSkeleton.GetBoneByName(bone.Name);
if (conformingBone == null)
{
throw new ExportException($"Animation track references bone '{bone.Name}' that cannot be found in the conforming skeleton '{conformToSkeleton.Name}'.");
}
var keyframes = track.ToKeyframes();
keyframes.SwapBindPose(bone.OriginalTransform, conformingBone.Transform.ToMatrix4());
var newTrack = TransformTrack.FromKeyframes(keyframes);
newTrack.Flags = track.Flags;
newTrack.Name = track.Name;
newTrack.ParentAnimation = track.ParentAnimation;
trackGroup.TransformTracks[i] = newTrack;
}
}
}
public static TransformTrack FromKeyframes(KeyframeTrack keyframes)
{
var track = new TransformTrack();
track.Flags = 0;
var translateTimes = keyframes.Keyframes.Where(f => f.Value.HasTranslation).Select(f => f.Key).ToList();
var translations = keyframes.Keyframes.Where(f => f.Value.HasTranslation).Select(f => f.Value.Translation).ToList();
if (translateTimes.Count == 1)
{
var posCurve = new D3Constant32f();
posCurve.CurveDataHeader_D3Constant32f = new CurveDataHeader {
Format = (int)CurveFormat.D3Constant32f, Degree = 2
};
posCurve.Controls = new float[3] {
translations[0].X, translations[0].Y, translations[0].Z
};
track.PositionCurve = new AnimationCurve {
CurveData = posCurve
};
}
else
{
var posCurve = new DaK32fC32f();
posCurve.CurveDataHeader_DaK32fC32f = new CurveDataHeader {
Format = (int)CurveFormat.DaK32fC32f, Degree = 2
};
posCurve.SetKnots(translateTimes);
posCurve.SetPoints(translations);
track.PositionCurve = new AnimationCurve {
CurveData = posCurve
};
}
var rotationTimes = keyframes.Keyframes.Where(f => f.Value.HasRotation).Select(f => f.Key).ToList();
var rotations = keyframes.Keyframes.Where(f => f.Value.HasRotation).Select(f => f.Value.Rotation).ToList();
if (rotationTimes.Count == 1)
{
var rotCurve = new D4Constant32f();
rotCurve.CurveDataHeader_D4Constant32f = new CurveDataHeader {
Format = (int)CurveFormat.D4Constant32f, Degree = 2
};
rotCurve.Controls = new float[4] {
rotations[0].X, rotations[0].Y, rotations[0].Z, rotations[0].W
};
track.OrientationCurve = new AnimationCurve {
CurveData = rotCurve
};
}
else
{
var rotCurve = new DaK32fC32f();
rotCurve.CurveDataHeader_DaK32fC32f = new CurveDataHeader {
Format = (int)CurveFormat.DaK32fC32f, Degree = 2
};
rotCurve.SetKnots(rotationTimes);
rotCurve.SetQuaternions(rotations);
track.OrientationCurve = new AnimationCurve {
CurveData = rotCurve
};
}
var scaleTimes = keyframes.Keyframes.Where(f => f.Value.HasScaleShear).Select(f => f.Key).ToList();
var scales = keyframes.Keyframes.Where(f => f.Value.HasScaleShear).Select(f => f.Value.ScaleShear).ToList();
if (scaleTimes.Count == 1)
{
var scaleCurve = new DaConstant32f();
scaleCurve.CurveDataHeader_DaConstant32f = new CurveDataHeader {
Format = (int)CurveFormat.DaConstant32f, Degree = 2
};
var m = scales[0];
scaleCurve.Controls = new List <float>
{
m[0, 0], m[0, 1], m[0, 2],
m[1, 0], m[1, 1], m[1, 2],
m[2, 0], m[2, 1], m[2, 2]
};
track.ScaleShearCurve = new AnimationCurve {
CurveData = scaleCurve
};
}
else
{
var scaleCurve = new DaK32fC32f();
scaleCurve.CurveDataHeader_DaK32fC32f = new CurveDataHeader {
Format = (int)CurveFormat.DaK32fC32f, Degree = 2
};
scaleCurve.SetKnots(scaleTimes);
scaleCurve.SetMatrices(scales);
track.ScaleShearCurve = new AnimationCurve {
CurveData = scaleCurve
};
}
return(track);
}
public TransformTrack MakeTrack()
{
var track = new TransformTrack();
track.Flags = 0;
track.Name = Bone.Name;
var positions = Transforms.Select(m => m.ExtractTranslation()).ToList();
var rotations = Transforms.Select(m => m.ExtractRotation()).ToList();
var scales = Transforms.Select(m => ScaleToScaleShear(m.ExtractScale())).ToList();
// Quaternion sign fixup
// Since GR2 interpolation operates on the raw XYZ values of the quaternion, two subsequent quaternions
// that express the same rotation (eg. [1, 0.5, 0.5, -0.5] and [1, -0.5, -0.5, 0.5]) will result in a 360 deg
// rotation during the animation. Shuffle XYZ signs around to make this less likely to happen
for (var i = 1; i < rotations.Count; i++)
{
var r0 = rotations[i - 1];
var r1 = rotations[i];
var dot = r0.W * r1.W + r0.X * r1.X + r0.Y * r1.Y + r0.Z * r1.Z;
if (dot < 0.0)
{
rotations[i] = new Quaternion(-r1.X, -r1.Y, -r1.Z, r1.W);
}
}
var posTimes = Times;
var minPositions = positions;
RemoveTrivialFrames(ref posTimes, ref minPositions);
if (minPositions.Count == 1)
{
var posCurve = new D3Constant32f();
posCurve.CurveDataHeader_D3Constant32f = new CurveDataHeader { Format = (int)CurveFormat.D3Constant32f, Degree = 2 };
posCurve.Controls = new float[3] { positions[0].X, positions[0].Y, positions[0].Z };
track.PositionCurve = new AnimationCurve { CurveData = posCurve };
}
else
{
var posCurve = new DaK32fC32f();
posCurve.CurveDataHeader_DaK32fC32f = new CurveDataHeader { Format = (int)CurveFormat.DaK32fC32f, Degree = 2 };
posCurve.SetKnots(Times);
posCurve.SetPoints(positions);
track.PositionCurve = new AnimationCurve { CurveData = posCurve };
}
var rotTimes = Times;
var minRotations = rotations;
RemoveTrivialFrames(ref rotTimes, ref minRotations);
if (minRotations.Count == 1)
{
var rotCurve = new D4Constant32f();
rotCurve.CurveDataHeader_D4Constant32f = new CurveDataHeader { Format = (int)CurveFormat.D4Constant32f, Degree = 2 };
rotCurve.Controls = new float[4] { rotations[0].X, rotations[0].Y, rotations[0].Z, rotations[0].W };
track.OrientationCurve = new AnimationCurve { CurveData = rotCurve };
}
else
{
var rotCurve = new DaK32fC32f();
rotCurve.CurveDataHeader_DaK32fC32f = new CurveDataHeader { Format = (int)CurveFormat.DaK32fC32f, Degree = 2 };
rotCurve.SetKnots(Times);
rotCurve.SetQuaternions(rotations);
track.OrientationCurve = new AnimationCurve { CurveData = rotCurve };
}
var scaleTimes = Times;
var minScales = scales;
RemoveTrivialFrames(ref scaleTimes, ref minScales);
if (minScales.Count == 1)
{
var scaleCurve = new DaConstant32f();
scaleCurve.CurveDataHeader_DaConstant32f = new CurveDataHeader { Format = (int)CurveFormat.DaConstant32f, Degree = 2 };
var m = minScales[0];
scaleCurve.Controls = new List<float>
{
m[0, 0], m[0, 1], m[0, 2],
m[1, 0], m[1, 1], m[1, 2],
m[2, 0], m[2, 1], m[2, 2]
};
track.ScaleShearCurve = new AnimationCurve { CurveData = scaleCurve };
}
else
{
var scaleCurve = new DaK32fC32f();
scaleCurve.CurveDataHeader_DaK32fC32f = new CurveDataHeader { Format = (int)CurveFormat.DaK32fC32f, Degree = 2 };
scaleCurve.SetKnots(Times);
scaleCurve.SetMatrices(scales);
track.ScaleShearCurve = new AnimationCurve { CurveData = scaleCurve };
}
return track;
}
public List <animation> ExportKeyframeTrack(TransformTrack transformTrack, string name, string target)
{
var track = transformTrack.ToKeyframes();
track.MergeAdjacentFrames();
track.InterpolateFrames();
var anims = new List <animation>();
var inputs = new List <InputLocal>();
var outputs = new List <float>(track.Keyframes.Count * 16);
foreach (var keyframe in track.Keyframes.Values)
{
var transform = keyframe.ToTransform().ToMatrix4();
transform.Transpose();
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
outputs.Add(transform[i, j]);
}
}
}
var interpolations = new List <string>(track.Keyframes.Count);
for (int i = 0; i < track.Keyframes.Count; i++)
{
interpolations.Add("LINEAR");
}
var knots = new List <float>(track.Keyframes.Count);
foreach (var keyframe in track.Keyframes)
{
knots.Add(keyframe.Key);
}
/*
* Fix up animations that have only one keyframe by adding another keyframe at
* the end of the animation.
* (This mainly applies to DaIdentity and DnConstant32f)
*/
if (track.Keyframes.Count == 1)
{
knots.Add(transformTrack.ParentAnimation.Duration);
for (int i = 0; i < 16; i++)
{
outputs.Add(outputs[i]);
}
interpolations.Add(interpolations[0]);
}
var knotsSource = ColladaUtils.MakeFloatSource(name, "inputs", new string[] { "TIME" }, knots.ToArray());
var knotsInput = new InputLocal();
knotsInput.semantic = "INPUT";
knotsInput.source = "#" + knotsSource.id;
inputs.Add(knotsInput);
var outSource = ColladaUtils.MakeFloatSource(name, "outputs", new string[] { "TRANSFORM" }, outputs.ToArray(), 16, "float4x4");
var outInput = new InputLocal();
outInput.semantic = "OUTPUT";
outInput.source = "#" + outSource.id;
inputs.Add(outInput);
var interpSource = ColladaUtils.MakeNameSource(name, "interpolations", new string[] { "INTERPOLATION" }, interpolations.ToArray());
var interpInput = new InputLocal();
interpInput.semantic = "INTERPOLATION";
interpInput.source = "#" + interpSource.id;
inputs.Add(interpInput);
var sampler = new sampler();
sampler.id = name + "_sampler";
sampler.input = inputs.ToArray();
var channel = new channel();
channel.source = "#" + sampler.id;
channel.target = target;
var animation = new animation();
animation.id = name;
animation.name = name;
var animItems = new List <object>();
animItems.Add(knotsSource);
animItems.Add(outSource);
animItems.Add(interpSource);
animItems.Add(sampler);
animItems.Add(channel);
animation.Items = animItems.ToArray();
anims.Add(animation);
return(anims);
}
public TransformTrack MakeTrack()
{
var track = new TransformTrack();
track.Flags = 0;
track.Name = Bone.Name;
var positions = Transforms.Select(m => m.ExtractTranslation()).ToList();
var rotations = Transforms.Select(m => m.ExtractRotation()).ToList();
var scales = Transforms.Select(m => ScaleToScaleShear(m.ExtractScale())).ToList();
// Quaternion sign fixup
// Since GR2 interpolation operates on the raw XYZ values of the quaternion, two subsequent quaternions
// that express the same rotation (eg. [1, 0.5, 0.5, -0.5] and [1, -0.5, -0.5, 0.5]) will result in a 360 deg
// rotation during the animation. Shuffle XYZ signs around to make this less likely to happen
for (var i = 1; i < rotations.Count; i++)
{
var r0 = rotations[i - 1];
var r1 = rotations[i];
var dot = r0.W * r1.W + r0.X * r1.X + r0.Y * r1.Y + r0.Z * r1.Z;
if (dot < 0.0)
{
rotations[i] = new Quaternion(-r1.X, -r1.Y, -r1.Z, r1.W);
}
}
var posTimes = Times;
var minPositions = positions;
RemoveTrivialFrames(ref posTimes, ref minPositions);
if (minPositions.Count == 1)
{
var posCurve = new D3Constant32f();
posCurve.CurveDataHeader_D3Constant32f = new CurveDataHeader {
Format = (int)CurveFormat.D3Constant32f, Degree = 2
};
posCurve.Controls = new float[3] {
positions[0].X, positions[0].Y, positions[0].Z
};
track.PositionCurve = new AnimationCurve {
CurveData = posCurve
};
}
else
{
var posCurve = new DaK32fC32f();
posCurve.CurveDataHeader_DaK32fC32f = new CurveDataHeader {
Format = (int)CurveFormat.DaK32fC32f, Degree = 2
};
posCurve.SetKnots(Times);
posCurve.SetPoints(positions);
track.PositionCurve = new AnimationCurve {
CurveData = posCurve
};
}
var rotTimes = Times;
var minRotations = rotations;
RemoveTrivialFrames(ref rotTimes, ref minRotations);
if (minRotations.Count == 1)
{
var rotCurve = new D4Constant32f();
rotCurve.CurveDataHeader_D4Constant32f = new CurveDataHeader {
Format = (int)CurveFormat.D4Constant32f, Degree = 2
};
rotCurve.Controls = new float[4] {
rotations[0].X, rotations[0].Y, rotations[0].Z, rotations[0].W
};
track.OrientationCurve = new AnimationCurve {
CurveData = rotCurve
};
}
else
{
var rotCurve = new DaK32fC32f();
rotCurve.CurveDataHeader_DaK32fC32f = new CurveDataHeader {
Format = (int)CurveFormat.DaK32fC32f, Degree = 2
};
rotCurve.SetKnots(Times);
rotCurve.SetQuaternions(rotations);
track.OrientationCurve = new AnimationCurve {
CurveData = rotCurve
};
}
var scaleTimes = Times;
var minScales = scales;
RemoveTrivialFrames(ref scaleTimes, ref minScales);
if (minScales.Count == 1)
{
var scaleCurve = new DaConstant32f();
scaleCurve.CurveDataHeader_DaConstant32f = new CurveDataHeader {
Format = (int)CurveFormat.DaConstant32f, Degree = 2
};
var m = minScales[0];
scaleCurve.Controls = new List <float>
{
m[0, 0], m[0, 1], m[0, 2],
m[1, 0], m[1, 1], m[1, 2],
m[2, 0], m[2, 1], m[2, 2]
};
track.ScaleShearCurve = new AnimationCurve {
CurveData = scaleCurve
};
}
else
{
var scaleCurve = new DaK32fC32f();
scaleCurve.CurveDataHeader_DaK32fC32f = new CurveDataHeader {
Format = (int)CurveFormat.DaK32fC32f, Degree = 2
};
scaleCurve.SetKnots(Times);
scaleCurve.SetMatrices(scales);
track.ScaleShearCurve = new AnimationCurve {
CurveData = scaleCurve
};
}
return(track);
}