// skinning
private void CreateMeshSkinning(Dictionary <string, List <VertexWeight> > vg, FBXNode pFbxMesh, FBXNode pSkeletonRoot, FBXScene pScene)
{
FBXSkin lFbxSkin = FBXSkin.Create(pScene, "");
FBXAMatrix lMeshMatTransform = pFbxMesh.EvaluateGlobalTransform();
foreach (string key in vg.Keys)
{
List <VertexWeight> bvg = vg[key];
FBXCluster lCluster = FBXCluster.Create(pScene, key);
FBXNode lFbxBone = pSkeletonRoot.FindChild(key);
if (lFbxBone != null)
{
lCluster.SetLink(lFbxBone);
foreach (VertexWeight v in bvg)
{
lCluster.AddControlPointIndex(v.vertexIndex, v.weight);
}
lFbxSkin.AddCluster(lCluster);
lCluster.SetTransformMatrix(lMeshMatTransform);
FBXAMatrix lBoneMatTransform = lFbxBone.EvaluateGlobalTransform();
lCluster.SetTransformLinkMatrix(lBoneMatTransform);
}
}
FBXGeometry lFbxMeshAtt = (FBXGeometry)pFbxMesh.GetNodeAttribute().ToGeometry();
if (lFbxMeshAtt != null)
{
lFbxMeshAtt.AddDeformer(lFbxSkin);
}
}
private void StoreRestPose(FBXScene pScene, FBXNode pSkeletonRoot, SkeletonAsset Skeleton)
{
Dictionary <String, FBBone> pose = Skeleton.ModelBones;
FBXAMatrix lTransformMatrix = new FBXAMatrix();
FBXVector4 lT, lR, lS;
lS = new FBXVector4(1.0, 1.0, 1.0, 0);
FBXPose lPose = FBXPose.Create(pScene, "A Bind Pose");
lT = new FBXVector4();
lR = new FBXVector4();
lTransformMatrix.SetTRS(lT, lR, lS);
FBXNode lKFbxNode = pSkeletonRoot;
lPose.Add(lKFbxNode, lTransformMatrix);
foreach (string key in pose.Keys)
{
FBBone bonePose = pose[key];
FBXNode fbxBone = pSkeletonRoot.FindChild(key);
FBXVector4 Forward = new FBXVector4(bonePose.Forward.members[0], bonePose.Forward.members[1], bonePose.Forward.members[2], 0);
FBXVector4 Right = new FBXVector4(bonePose.Right.members[0], bonePose.Right.members[1], bonePose.Right.members[2], 0);
FBXVector4 Up = new FBXVector4(bonePose.Up.members[0], bonePose.Up.members[1], bonePose.Up.members[2], 0);
FBXVector4 Trans = new FBXVector4(bonePose.Location.members[0] * exportScale, bonePose.Location.members[1] * exportScale, bonePose.Location.members[2] * exportScale, 1);
FBXAMatrix boneTransform = new FBXAMatrix();
boneTransform.SetRow(0, Right);
boneTransform.SetRow(1, Up);
boneTransform.SetRow(2, Forward);
boneTransform.SetRow(3, Trans);
lPose.Add(fbxBone, boneTransform);
}
lPose.SetIsBindPose(true);
pScene.AddPose(lPose);
}
private void StoreBindPose(FBXScene pScene, FBXNode pMesh)
{
List <FBXNode> lClusteredFbxNodes = new List <FBXNode>();
int i, j;
FBXNodeAttribute att = pMesh.GetNodeAttribute();
if (pMesh != null && att != null)
{
int lSkinCount = 0;
int lClusterCount = 0;
switch (pMesh.GetNodeAttribute().GetAttributeType())
{
default:
break;
case NodeAttribType.eMesh:
case NodeAttribType.eNurbs:
case NodeAttribType.ePatch:
FBXGeometry geo = (FBXGeometry)att.ToGeometry();
lSkinCount = geo.GetDeformerCount(EDeformerType.eSkin);
for (i = 0; i < lSkinCount; ++i)
{
FBXSkin lSkin = geo.GetSkinDeformer(i);
lClusterCount += lSkin.GetClusterCount();
}
break;
}
if (lClusterCount != 0)
{
for (i = 0; i < lSkinCount; ++i)
{
FBXGeometry geo = (FBXGeometry)att.ToGeometry();
FBXSkin lSkin = geo.GetSkinDeformer(i);
lClusterCount = lSkin.GetClusterCount();
for (j = 0; j < lClusterCount; ++j)
{
FBXNode lClusterNode = lSkin.GetClusterLink(j);
AddNodeRecursively(lClusteredFbxNodes, lClusterNode);
}
}
lClusteredFbxNodes.Add(pMesh);
}
}
if (lClusteredFbxNodes.Count != 0)
{
FBXPose lPose = FBXPose.Create(pScene, "pose");
lPose.SetIsBindPose(true);
for (i = 0; i < lClusteredFbxNodes.Count; i++)
{
FBXNode lKFbxNode = lClusteredFbxNodes[i];
FBXAMatrix lBindMatrix = lKFbxNode.EvaluateGlobalTransform();
lPose.Add(lKFbxNode, lBindMatrix);
}
pScene.AddPose(lPose);
}
}
private FBXVector4 CalculateBoneRotation(FBBone bone)
{
FBXAMatrix fbxrotMat = new FBXAMatrix();
FBXVector4 Forward = new FBXVector4(bone.Forward.members[0], bone.Forward.members[1], bone.Forward.members[2], 0);
FBXVector4 Right = new FBXVector4(bone.Right.members[0], bone.Right.members[1], bone.Right.members[2], 0);
FBXVector4 Up = new FBXVector4(bone.Up.members[0], bone.Up.members[1], bone.Up.members[2], 0);
fbxrotMat.SetRow(0, Right);
fbxrotMat.SetRow(1, Up);
fbxrotMat.SetRow(2, Forward);
fbxrotMat.SetRow(3, new FBXVector4(0, 0, 0, 1));
FBXVector4 boneRot = fbxrotMat.getR();
return(boneRot);
}
private void SetBoneTransform(SkeletonAsset Skeleton, FBXNode pSkeletonRoot)
{
Dictionary <String, FBBone> pose = Skeleton.ModelBones;
foreach (string key in pose.Keys)
{
FBBone bonePose = pose[key];
FBXNode fbxBone = pSkeletonRoot.FindChild(key);
FBXVector4 ForwardM = new FBXVector4(bonePose.Forward.members[0], bonePose.Forward.members[1], bonePose.Forward.members[2], 0);
FBXVector4 RightM = new FBXVector4(bonePose.Right.members[0], bonePose.Right.members[1], bonePose.Right.members[2], 0);
FBXVector4 UpM = new FBXVector4(bonePose.Up.members[0], bonePose.Up.members[1], bonePose.Up.members[2], 0);
FBXVector4 TransM = new FBXVector4(bonePose.Location.members[0] * exportScale, bonePose.Location.members[1] * exportScale, bonePose.Location.members[2] * exportScale, 1);
FBXAMatrix transfoMatrix = new FBXAMatrix();
transfoMatrix.SetRow(0, RightM);
transfoMatrix.SetRow(1, UpM);
transfoMatrix.SetRow(2, ForwardM);
transfoMatrix.SetRow(3, TransM);
FBXHelper.SetGlobalDefaultPosition(fbxBone, transfoMatrix);
}
}