/// <summary>
/// Converts the animations from the given imported data and creates
/// them in the scene.
/// </summary>
/// <param name="scene">The scene to hold to converted animations</param>
/// <param name="data">The data to read the animations from</param>
protected void CreateAnimations(AssimpSharp.Scene scene, AssimpSharp.XFile.Scene data)
{
var newAnims = new List<AssimpSharp.Animation>();
for (int a = 0; a < data.Anims.Count; a++)
{
var anim = data.Anims[a];
if (anim.Anims.Count == 0)
{
continue;
}
var nanim = new AssimpSharp.Animation();
newAnims.Add(nanim);
nanim.Name = anim.Name;
nanim.Duration = 0;
nanim.TicksPreSecond = data.AnimTicksPerSecond;
nanim.Channels = new AssimpSharp.NodeAnim[anim.Anims.Count];
for (int b = 0; b < anim.Anims.Count; b++)
{
var bone = anim.Anims[b];
var nbone = new AssimpSharp.NodeAnim();
nbone.NodeName = bone.BoneName;
nanim.Channels[b] = nbone;
if (bone.TrafoKeys.Count > 0)
{
nbone.PositionKeys = new VectorKey[bone.TrafoKeys.Count];
nbone.RotationKeys = new QuatKey[bone.TrafoKeys.Count];
nbone.ScalingKeys = new VectorKey[bone.TrafoKeys.Count];
for (int c = 0; c < bone.TrafoKeys.Count; c++)
{
var time = bone.TrafoKeys[c].Key;
var trafo = bone.TrafoKeys[c].Value;
var pos = trafo.TranslationVector;
nbone.PositionKeys[c].Time = time;
nbone.PositionKeys[c].Value = pos;
Vector3 scale;
scale.X = new Vector3(trafo[0, 0], trafo[0, 1], trafo[0, 2]).Length();
scale.Y = new Vector3(trafo[1, 0], trafo[1, 1], trafo[1, 2]).Length();
scale.Z = new Vector3(trafo[2, 0], trafo[2, 1], trafo[2, 2]).Length();
nbone.ScalingKeys[c].Time = time;
nbone.ScalingKeys[c].Value = scale;
var rotmat = new Matrix3x3(
trafo[0, 0] / scale.X, trafo[0, 1] / scale.Y, trafo[0, 2] / scale.Z,
trafo[1, 0] / scale.X, trafo[1, 1] / scale.Y, trafo[1, 2] / scale.Z,
trafo[2, 0] / scale.X, trafo[2, 1] / scale.Y, trafo[2, 2] / scale.Z);
nbone.RotationKeys[c].Time = time;
throw (new NotImplementedException());
//nbone.RotationKeys[c].Value = ;
}
nanim.Duration = Math.Max(nanim.Duration, bone.TrafoKeys[bone.TrafoKeys.Count].Key);
}
else
{
// separate key sequences for position, rotation, scaling
nbone.PositionKeys = new VectorKey[bone.PosKeys.Count];
for (int c = 0; c < nbone.PositionKeys.Length; c++)
{
var pos = bone.PosKeys[c].Value;
nbone.PositionKeys[c].Time = bone.PosKeys[c].Time;
nbone.PositionKeys[c].Value = pos;
}
// rotation
nbone.RotationKeys = new QuatKey[bone.RotKeys.Count];
for (int c = 0; c < nbone.RotationKeys.Length; c++)
{
var rotmat = Matrix3x3.RotationQuaternion(bone.RotKeys[c].Value);
nbone.RotationKeys[c].Time = bone.RotKeys[c].Time;
Quaternion.RotationMatrix(ref rotmat, out nbone.RotationKeys[c].Value);
nbone.RotationKeys[c].Value.W *= -1.0f;
}
// longest lasting key sequence determines duration
nbone.ScalingKeys = new VectorKey[bone.ScaleKeys.Count];
for (int c = 0; c < nbone.ScalingKeys.Length; c++)
{
nbone.ScalingKeys[c] = bone.ScaleKeys[c];
}
// longest lasting key sequence determines duration
if (bone.PosKeys.Count > 0)
{
nanim.Duration = Math.Max(nanim.Duration, bone.PosKeys[bone.PosKeys.Count - 1].Time);
}
if (bone.RotKeys.Count > 0)
{
nanim.Duration = Math.Max(nanim.Duration, bone.RotKeys[bone.RotKeys.Count - 1].Time);
}
if (bone.ScaleKeys.Count > 0)
{
nanim.Duration = Math.Max(nanim.Duration, bone.ScaleKeys[bone.ScaleKeys.Count - 1].Time);
}
}
}
}
// store all converted animations in the scene
if (newAnims.Count > 0)
{
scene.Animations.Clear();
scene.Animations.AddRange(newAnims);
}
}
private AssimpSharp.NodeAnim GenerateTranslationNodeAnim(string name, Model target, List<AnimationCurveNode> curves, LayerMap layerMap,
long start, long stop, double maxTime, double minTime, bool inverse = false)
{
var na = new AssimpSharp.NodeAnim();
na.NodeName = name;
ConvertRotationKeys(na, curves, layerMap, start, stop, ref maxTime, ref minTime, target.RotationOrder.Value);
if (inverse)
{
for (int i = 0; i < na.PositionKeys.Length; i++)
{
na.PositionKeys[i].Value *= -1.0f;
}
}
// dummy scaling key
na.ScalingKeys = new AssimpSharp.VectorKey[1];
na.ScalingKeys[0].Time = 0;
na.ScalingKeys[0].Value = new Vector3(1, 1, 1);
// dummy rotation key
na.RotationKeys = new AssimpSharp.QuatKey[1];
na.RotationKeys[0].Time = 0;
na.RotationKeys[0].Value = Quaternion.Identity;
return na;
}
private AssimpSharp.NodeAnim GenerateScalingNodeAnim(string name, Model target, List<AnimationCurveNode> curves, LayerMap layerMap,
long start, long stop,
double maxTime, double minTime)
{
var na = new AssimpSharp.NodeAnim();
na.NodeName = name;
ConvertScaleKeys(na, curves, layerMap, start, stop, ref maxTime, ref minTime);
// dummy rotation key
na.RotationKeys = new AssimpSharp.QuatKey[1];
na.RotationKeys[0] = new AssimpSharp.QuatKey(0, new Quaternion());
// dummy position key
na.PositionKeys = new AssimpSharp.VectorKey[1];
na.PositionKeys[0] = new AssimpSharp.VectorKey(0, new Vector3());
return na;
}
/// <summary>
/// generate node anim, extracting only Rotation, Scaling and Translation from the given chain
/// </summary>
private AssimpSharp.NodeAnim GenerateSimpleNodeAnim(string name,
Model target,
List<AnimationCurveNode>[] chain,
LayerMap layerMap,
long start,
long stop,
ref double maxTime,
ref double minTime,
bool reverseOrder = false)
{
var na = new AssimpSharp.NodeAnim();
na.NodeName = name;
var props = target.Props;
// need to convert from TRS order to SRT?
if (reverseOrder)
{
var defScale = Vector3.Zero;
var defTranslate = Vector3.Zero;
var defRot = Quaternion.Identity;
var scaling = new KeyFrameListList();
var translation = new KeyFrameListList();
var rotation = new KeyFrameListList();
if (chain[(int)TransformationComp.Scaling] != null)
{
scaling = GetKeyframeList(chain[(int)TransformationComp.Scaling], start, stop);
}
else
{
defScale = PropertyHelper.PropertyGet(props, "Lcl Scaling", new Vector3(1, 1, 1));
}
if (chain[(int)TransformationComp.Translation] != null)
{
translation = GetKeyframeList(chain[(int)TransformationComp.Translation], start, stop);
}
else
{
defTranslate = PropertyHelper.PropertyGet(props, "Lcl Translation", new Vector3(0, 0, 0));
}
if (chain[(int)TransformationComp.Rotation] != null)
{
rotation = GetKeyframeList(chain[(int)TransformationComp.Rotation], start, stop);
}
else
{
defRot = EulerToQuaternion(PropertyHelper.PropertyGet(props, "Lcl Rotation", new Vector3(0, 0, 0)), target.RotationOrder.Value);
}
var joined = new KeyFrameListList();
joined.AddRange(scaling);
joined.AddRange(translation);
joined.AddRange(rotation);
var times = GetKeyTimeList(joined);
var outQuat = new AssimpSharp.QuatKey[times.Count];
var outScale = new AssimpSharp.VectorKey[times.Count];
var outTranslation = new AssimpSharp.VectorKey[times.Count];
if (times.Count > 0)
{
ConvertTransformOrder_TRStoSRT(outQuat, outScale, outTranslation,
scaling, translation, rotation, times, ref maxTime, ref minTime, target.RotationOrder.Value, defScale, defTranslate, defRot);
}
// XXX remove duplicates / redundant keys which this operation did
// likely produce if not all three channels were equally dense.
na.ScalingKeys = outScale;
na.RotationKeys = outQuat;
na.PositionKeys = outTranslation;
}
else
{
// if a particular transformation is not given, grab it from
// the corresponding node to meet the semantics of aiNodeAnim,
// which requires all of rotation, scaling and translation
// to be set.
if (chain[(int)TransformationComp.Scaling] != null)
{
ConvertScaleKeys(na, chain[(int)TransformationComp.Scaling],
layerMap, start, stop, ref maxTime, ref minTime);
}
else
{
na.ScalingKeys = new AssimpSharp.VectorKey[1];
na.ScalingKeys[0].Time = 0;
na.ScalingKeys[0].Value = PropertyHelper.PropertyGet(props, "Lcl Scaling", new Vector3(1, 1, 1));
}
if (chain[(int)TransformationComp.Rotation] != null)
{
ConvertRotationKeys(na, chain[(int)TransformationComp.Rotation],
layerMap, start, stop, ref maxTime, ref minTime, target.RotationOrder.Value);
}
else
{
na.RotationKeys = new AssimpSharp.QuatKey[1];
na.RotationKeys[0].Time = 0;
na.RotationKeys[0].Value = EulerToQuaternion(PropertyHelper.PropertyGet(props, "Lcl Rotation", new Vector3(0, 0, 0)), target.RotationOrder.Value);
}
if (chain[(int)TransformationComp.Translation] != null)
{
ConvertTranslationKeys(na, chain[(int)TransformationComp.Translation],
layerMap, start, stop, ref maxTime, ref minTime);
}
else
{
na.PositionKeys = new AssimpSharp.VectorKey[1];
na.PositionKeys[0].Time = 0;
na.PositionKeys[0].Value = PropertyHelper.PropertyGet(props, "Lcl Translation", new Vector3(0, 0, 0));
}
}
return na;
}
private AssimpSharp.NodeAnim GenerateRotationNodeAnim(string name, Model target, List<AnimationCurveNode> curves, LayerMap layerMap, long start, long stop, ref double maxTime, ref double minTime)
{
var na = new AssimpSharp.NodeAnim();
na.NodeName = name;
ConvertRotationKeys(na, curves, layerMap, start, stop, ref maxTime, ref minTime, target.RotationOrder.Value);
// dummy scaling key
na.ScalingKeys = new AssimpSharp.VectorKey[1];
na.ScalingKeys[0].Time = 0;
na.ScalingKeys[0].Value = new Vector3(1.0f, 1.0f, 1.0f);
// dummy position key
na.PositionKeys = new AssimpSharp.VectorKey[1];
na.PositionKeys[0].Time = 0;
na.PositionKeys[0].Value = new Vector3();
return na;
}