private Godot.Collections.Array createSurfaceByBones(ArrayMesh mesh, int surface, Skin newSkin, List <UMAReciepeBindPose> origBindPoses)
{
var mdt = new MeshDataTool();
mdt.CreateFromSurface(mesh, surface);
var st = new SurfaceTool();
st.Begin(Mesh.PrimitiveType.Triangles);
var newBindPoses = new List <UMAReciepeBindPose>();
if (newSkin != null)
{
for (int i = 0; i < newSkin.GetBindCount(); i++)
{
newBindPoses.Add(new UMAReciepeBindPose
{
boneName = newSkin.GetBindName(i),
transform = newSkin.GetBindPose(i),
boneIndex = newSkin.GetBindBone(i)
});
}
}
var boneAmount = 0;
for (int i = 0; i < mdt.GetVertexCount(); i++)
{
var oldVer = mdt.GetVertex(i);
var oldNorm = mdt.GetVertexNormal(i);
var newVer = new Vector3();
var newNorm = new Vector3();
var indexes = mdt.GetVertexBones(i);
// st.AddTangent(mdt.GetVertexTangent(i));
st.AddBones(mdt.GetVertexBones(i));
st.AddWeights(mdt.GetVertexWeights(i));
int boneId = 0;
foreach (var weight in mdt.GetVertexWeights(i))
{
if (newBindPoses.Count >= indexes[boneId] && origBindPoses.Count >= indexes[boneId])
{
var restBoneNew = newBindPoses[indexes[boneId]];
var restBoneTemplate = origBindPoses[indexes[boneId]];
var dataup = restBoneNew.transform.Xform(Vector3.Up);
var dataright = restBoneNew.transform.Xform(Vector3.Right);
var templateup = restBoneTemplate.transform.Xform(Vector3.Up);
var templateright = restBoneTemplate.transform.Xform(Vector3.Right);
if (Mathf.Abs(dataup.AngleTo(templateup)) > 1 || Mathf.Abs(dataright.AngleTo(templateright)) > 1)
{
Transform convertMatrix = restBoneTemplate.transform.Inverse() * restBoneNew.transform;
newVer += convertMatrix.Xform(oldVer) * weight;
newNorm += convertMatrix.basis.Xform(oldNorm) * weight;
}
else
{
newVer += oldVer * weight;
newNorm += oldNorm * weight;
}
}
else
{
newVer += oldVer * weight;
newNorm += oldNorm * weight;
}
boneId++;
}
st.AddUv(mdt.GetVertexUv(i));
if (mdt.GetVertexColor(i) != null)
{
st.AddColor(mdt.GetVertexColor(i));
}
if (mdt.GetVertexUv2(i) != null)
{
st.AddUv2(mdt.GetVertexUv2(i));
}
st.AddNormal(newNorm);
st.AddVertex(newVer);
boneAmount += mdt.GetVertexBones(i).Length;
}
//creating indexes
for (int face = 0; face < mdt.GetFaceCount(); face++)
{
for (int faceI = 0; faceI < 3; faceI++)
{
var ind = mdt.GetFaceVertex(face, faceI);
st.AddIndex(ind);
}
}
st.GenerateTangents();
return(st.CommitToArrays());
}