/// <summary>
///
/// </summary>
/// <param name="skeleton"></param>
/// <returns></returns>
public JPSkeleton ReadSkeleton(Skeleton skeleton)
{
rigidIndices = skeleton.GetRigidIndices();
smoothIndices = skeleton.GetSmoothIndices();
boneList = skeleton.MatrixToBoneList;
inverseModelMatrices = skeleton.InverseModelMatrices;
flagsRotation = skeleton.FlagsRotation;
flagsScaling = skeleton.FlagsScaling;
this.bones.Clear();
short count = 0;
foreach (Bone bone in skeleton.Bones.Values)
{
JPBone jpBone = new JPBone(this, count++);
jpBone = jpBone.ReadBone(bone);
this.bones.Add(jpBone);
}
this.Reset();
return(this);
}
public void Update(bool reset = false)
{
updated = true;
List <JPBone> bonesToProcess = new List <JPBone>();
// Add root bone
foreach (JPBone bone in bones)
{
if (bone.parentIndex == -1)
{
bonesToProcess.Add(bone);
}
}
// some special processing for the root bones before we start
foreach (JPBone rootBone in bonesToProcess)
{
rootBone.Transform = OpenTK.Matrix4.CreateScale(rootBone.sca) * OpenTK.Matrix4.CreateFromQuaternion(rootBone.rot) * OpenTK.Matrix4.CreateTranslation(rootBone.pos);
// scale down the model in its entirety only when mid-animation (i.e. reset == false)
// Maybe not relevant?
if (!reset)
{
rootBone.Transform *= OpenTK.Matrix4.CreateScale(1);
}
}
int numRootNodes = bonesToProcess.Count;
for (int i = 0; i < numRootNodes; i++)
{
bonesToProcess.AddRange(bonesToProcess[0].GetChildren());
bonesToProcess.RemoveAt(0);
}
while (bonesToProcess.Count > 0)
{
// BFS
JPBone bone = bonesToProcess[0];
bonesToProcess.RemoveAt(0);
bonesToProcess.AddRange(bone.GetChildren());
bone.Transform = OpenTK.Matrix4.CreateScale(bone.sca) * OpenTK.Matrix4.CreateFromQuaternion(bone.rot) * OpenTK.Matrix4.CreateTranslation(bone.pos);
if (bone.parentIndex != -1)
{
if (bone.UseSegmentScaleCompensate && bones[bone.parentIndex] != null &&
bones[bone.parentIndex] is JPBone)
{
bone.Transform *= OpenTK.Matrix4.CreateScale(
1f / bones[bone.parentIndex].sca.X,
1f / bones[bone.parentIndex].sca.Y,
1f / bones[bone.parentIndex].sca.Z);
bone.Transform *= bones[bone.parentIndex].Transform;
}
else
{
bone.Transform = bone.Transform * bones[bone.parentIndex].Transform;
}
}
}
}