public static List <AnimationKey> GetBoneKeyFrames(Bone bone, FBXFile file)
{
var result = new List <AnimationKey>();
var curveNodes = FBX.FBXHelper.GetAnimationCurveNodes(file, bone);
// get curves for the curve nodes of the bone
foreach (var curveNode in curveNodes)
{
var curves = file.GetAnimationCurves(curveNode);
foreach (var curve in curves)
{
// the connection defines the axis being affected
var axis = file.GetConnectionType(curve.Id, curveNode.Id);
if (axis.Contains("X"))
{
axis = "x";
}
if (axis.Contains("Y"))
{
axis = "y";
}
if (axis.Contains("Z"))
{
axis = "z";
}
curveNode.Curves.Add(axis, curve);
}
}
// convert curves to animation keys
var keys = curveNodes.SelectMany(c => c.Curves.SelectMany(b => b.Value.KeyTime)).Distinct().OrderBy(a => a).ToArray();
int frames = keys.Length;
for (int i = 0; i < keys.Length; i++)
{
var animKey = new AnimationKey()
{
Frame = i,
Transform = bone.JointMatrix
};
// Translation
var curveNode = curveNodes.Where(a => a.Name.Contains("T")).FirstOrDefault();
if (curveNode != null)
{
// check if the curve has a value for that frame first
var framePos = curveNode.Curves["x"].KeyTime.TakeWhile(a => a < keys[i]).Count() - 1;
var x = (framePos > -1) ? curveNode.Curves["x"].KeyValueFloat[framePos] : animKey.Translation[0];
framePos = curveNode.Curves["y"].KeyTime.TakeWhile(a => a < keys[i]).Count() - 1;
var y = (framePos > -1) ? curveNode.Curves["y"].KeyValueFloat[framePos] : animKey.Translation[1];
framePos = curveNode.Curves["z"].KeyTime.TakeWhile(a => a < keys[i]).Count() - 1;
var z = (framePos > -1) ? curveNode.Curves["z"].KeyValueFloat[framePos] : animKey.Translation[2];
animKey.Translation = new float[] { x, y, z };
}
// Rotation
curveNode = curveNodes.Where(a => a.Name.Contains("R")).FirstOrDefault();
if (curveNode != null)
{
// check if the curve has a value for that frame first
var framePos = curveNode.Curves["x"].KeyTime.TakeWhile(a => a < keys[i]).Count() - 1;
var x = (framePos > -1) ? curveNode.Curves["x"].KeyValueFloat[framePos] : 0F;
framePos = curveNode.Curves["y"].KeyTime.TakeWhile(a => a < keys[i]).Count() - 1;
var y = (framePos > -1) ? curveNode.Curves["y"].KeyValueFloat[framePos] : 0f;
framePos = curveNode.Curves["z"].KeyTime.TakeWhile(a => a < keys[i]).Count() - 1;
var z = (framePos > -1) ? curveNode.Curves["z"].KeyValueFloat[framePos] : 0f;
animKey.Rotation = new float[] { x.ToRadians(), y.ToRadians(), z.ToRadians() }.QuaternionFromEuler(EulerOrder.XYZ);
}
// Scale
curveNode = curveNodes.Where(a => a.Name.Contains("S")).FirstOrDefault();
if (curveNode != null)
{
// check if the curve has a value for that frame first
var framePos = curveNode.Curves["x"].KeyTime.TakeWhile(a => a < keys[i]).Count() - 1;
var x = (framePos > -1) ? curveNode.Curves["x"].KeyValueFloat[framePos] : 0f;
framePos = curveNode.Curves["y"].KeyTime.TakeWhile(a => a < keys[i]).Count() - 1;
var y = (framePos > -1) ? curveNode.Curves["y"].KeyValueFloat[framePos] : 0f;
framePos = curveNode.Curves["z"].KeyTime.TakeWhile(a => a < keys[i]).Count() - 1;
var z = (framePos > -1) ? curveNode.Curves["z"].KeyValueFloat[framePos] : 0f;
animKey.Scale = new float[] { x, y, z };
}
// add the animation key to the list
result.Add(animKey);
}
return(result);
}
public Animator(FBXFile file)
{
var bones = Bone.GetBoneHierarchy(file);
var boneCurveNodes = new SortedList <string, List <CoreFBX.FBX.Animation.FBXAnimCurveNode> >();
AnimationKeys = new Dictionary <string, List <AnimationKey> >();
PoseKeys = new Dictionary <string, AnimationKey>();
foreach (var bone in bones)
{
AnimationKeys.Add(bone.Id, new List <AnimationKey>());
var curveNodes = FBX.FBXHelper.GetAnimationCurveNodes(file, bone);
// get curves for the curve nodes of the bone
foreach (var curveNode in curveNodes)
{
var curves = file.GetAnimationCurves(curveNode);
foreach (var curve in curves)
{
// the connection defines the axis being affected
var axis = file.GetConnectionType(curve.Id, curveNode.Id);
if (axis.Contains("X"))
{
axis = "x";
}
if (axis.Contains("Y"))
{
axis = "y";
}
if (axis.Contains("Z"))
{
axis = "z";
}
curveNode.Curves.Add(axis, curve);
}
}
boneCurveNodes.Add(bone.Id, curveNodes);
}
// convert curves to animation keys
var keys = boneCurveNodes.SelectMany(a => a.Value.SelectMany(c => c.Curves.SelectMany(b => b.Value.KeyTime))).Distinct().OrderBy(a => a).ToArray();
Frames = keys.Length;
for (int i = 0; i < keys.Length; i++)
{
foreach (var bone in bones)
{
var animKey = new AnimationKey()
{
Frame = i,
Transform = bone.JointMatrix
};
// Translation
var curveNode = boneCurveNodes[bone.Id].Where(a => a.Name.Contains("T")).FirstOrDefault();
if (curveNode != null)
{
// check if the curve has a value for that frame first
var framePos = curveNode.Curves["x"].KeyTime.TakeWhile(a => a < keys[i]).Count() - 1;
var x = (framePos > -1) ? curveNode.Curves["x"].KeyValueFloat[framePos] : animKey.Translation[0];
framePos = curveNode.Curves["y"].KeyTime.TakeWhile(a => a < keys[i]).Count() - 1;
var y = (framePos > -1) ? curveNode.Curves["y"].KeyValueFloat[framePos] : animKey.Translation[1];
framePos = curveNode.Curves["z"].KeyTime.TakeWhile(a => a < keys[i]).Count() - 1;
var z = (framePos > -1) ? curveNode.Curves["z"].KeyValueFloat[framePos] : animKey.Translation[2];
animKey.Translation = new float[] { x, y, z };
}
// Rotation
curveNode = boneCurveNodes[bone.Id].Where(a => a.Name.Contains("R")).FirstOrDefault();
if (curveNode != null)
{
// check if the curve has a value for that frame first
var framePos = curveNode.Curves["x"].KeyTime.TakeWhile(a => a < keys[i]).Count() - 1;
var x = (framePos > -1) ? curveNode.Curves["x"].KeyValueFloat[framePos] : 0F;
framePos = curveNode.Curves["y"].KeyTime.TakeWhile(a => a < keys[i]).Count() - 1;
var y = (framePos > -1) ? curveNode.Curves["y"].KeyValueFloat[framePos] : 0f;
framePos = curveNode.Curves["z"].KeyTime.TakeWhile(a => a < keys[i]).Count() - 1;
var z = (framePos > -1) ? curveNode.Curves["z"].KeyValueFloat[framePos] : 0f;
animKey.Rotation = new float[] { x.ToRadians(), y.ToRadians(), z.ToRadians() }.QuaternionFromEuler(EulerOrder.XYZ);
}
// Scale
curveNode = boneCurveNodes[bone.Id].Where(a => a.Name.Contains("S")).FirstOrDefault();
if (curveNode != null)
{
// check if the curve has a value for that frame first
var framePos = curveNode.Curves["x"].KeyTime.TakeWhile(a => a < keys[i]).Count() - 1;
var x = (framePos > -1) ? curveNode.Curves["x"].KeyValueFloat[framePos] : 0f;
framePos = curveNode.Curves["y"].KeyTime.TakeWhile(a => a < keys[i]).Count() - 1;
var y = (framePos > -1) ? curveNode.Curves["y"].KeyValueFloat[framePos] : 0f;
framePos = curveNode.Curves["z"].KeyTime.TakeWhile(a => a < keys[i]).Count() - 1;
var z = (framePos > -1) ? curveNode.Curves["z"].KeyValueFloat[framePos] : 0f;
animKey.Scale = new float[] { x, y, z };
}
// add the animation key to the list
bone.Keyframes.Add(animKey);
//AnimationKeys[bone.Id].Add(animKey);
}
}
//restore bind pose
foreach (var bone in bones)
{
var animKey = new AnimationKey()
{
Frame = 0,
Transform = bone.JointMatrix
};
// Translation
var curveNode = boneCurveNodes[bone.Id].Where(a => a.Name.Contains("T")).FirstOrDefault();
if (curveNode != null)
{
animKey.Translation = curveNode.Value;
}
// Rotation
curveNode = boneCurveNodes[bone.Id].Where(a => a.Name.Contains("R")).FirstOrDefault();
if (curveNode != null)
{
animKey.Rotation = curveNode.Value.ToRadians().QuaternionFromEuler(EulerOrder.XYZ);
}
// Scale
curveNode = boneCurveNodes[bone.Id].Where(a => a.Name.Contains("S")).FirstOrDefault();
if (curveNode != null)
{
animKey.Scale = curveNode.Value;
}
// add the animation key to the list
PoseKeys.Add(bone.Name, animKey);
}
}// Constructor()
