public static List <Bone> GetBoneHierarchy(FBXTreeNode node, FBXFile fbx)
{
var bones = new List <Bone>();
var modelNodes = node.Children.Where(a => a.Node.Name == "Model");
foreach (var child in modelNodes)
{
var model = new Model(child.Node, fbx);
if (model.ModelType == Model.FBXModelType.LimbNode || (model.ModelType == Model.FBXModelType.None && !model.HasGeometry))
{
var children = GetBoneHierarchy(child, fbx);
var t = model.LclTranslation;
var r = model.LclRotation.ToRadians().QuaternionFromEuler(EulerOrder.XYZ);
var s = model.LclScaling;
var deformerId = fbx.Connections.Where(a => a.Src == model.Id && fbx.FindChild(a.Dst).Name == "Deformer").FirstOrDefault();
var globalInverseMatrix = new float[] { }.IdentityMatrix();
if (deformerId != null)
{
var deformer = new Deformer(fbx.FindChild(deformerId.Dst));
}
var bone = new Bone()
{
Id = model.Id.ToString(),
Parent = (node.Node != null) ? node.Node.Id.ToString() : "",
Children = children.Select(a => a.Id).ToList(),
JointMatrix = new float[] { }.MatrixCompose(t, r, s),
Name = model.Name
};
bone.Keyframes = GetBoneKeyFrames(bone, fbx);
bones.Add(bone);
bones.AddRange(children);
}
}
return(bones);
}
public Animation(FBXFile file, List <string> bones)
{
var rawNodes = file.GetAnimationCurveNodes();
var rawCurves = file.GetAnimationCurves();
// first: expand AnimationCurveNode into curve nodes
var curveNodes = new List <FBXAnimCurveNode>();
foreach (var tempNode in rawNodes)
{
var fileNode = file.FindChild(tempNode.Id);
curveNodes.Add(new FBXAnimCurveNode(fileNode, file, bones));
}
// second: gen dict, mapped by internalId
var tmp = new Dictionary <long, FBXAnimCurveNode>();
for (var i = 0; i < curveNodes.Count; ++i)
{
tmp.Add(curveNodes[i].Id, curveNodes[i]);
}
// third: insert curves into the dict
var ac = new List <FBXAnimCurve>();
var max = 0f;
foreach (var curve in rawCurves)
{
ac.Add(curve);
max = curve.Length > max ? curve.Length : max;
var parentId = file.Connections.Where(a => a.Src == curve.Id).FirstOrDefault().Dst;
var axis = file.GetConnectionType(curve.Id, parentId);
if (axis.Contains("X"))
{
axis = "x";
}
if (axis.Contains("Y"))
{
axis = "y";
}
if (axis.Contains("Z"))
{
axis = "z";
}
tmp[parentId].Curves.Add(axis, curve);
}
// forth:
foreach (var t in tmp)
{
var id = t.Value.ContainerBoneId;
if (!Curves.ContainsKey(id))
{
Curves.Add(id, new Dictionary <string, FBXAnimCurveNode>());
}
if (Curves[id].ContainsKey(t.Value.Attr))
{
Curves[id][t.Value.Attr] = t.Value;
}
else
{
Curves[id].Add(t.Value.Attr, t.Value);
}
}
Length = max;
Frames = Length * FPS;
}