I know it's old. But I need to complete some tasks before upgrading. So please bear with me If I use this code snippet to parse the x frame hierarchy

void MeshX::ParseParents(/*FRAME* root, FRAME* parent, FRAME* pCurFrame*/)
{	 

	// get all first child first, then the first child's 

	FRAME* pCurFrame = (FRAME*)m_pFrameRoot;
	LPD3DXMESHCONTAINER pCurMesh;
	stack st;
	st.push(pCurFrame);
	while (!st.empty())
	{
		pCurFrame = st.top();
		st.pop();
		if (pCurFrame != NULL)
		{

			FRAME* p = (FRAME*)pCurFrame;
			FRAME* c = (FRAME*)pCurFrame->pFrameFirstChild;
			FRAME* s = (FRAME*)pCurFrame->pFrameSibling;
 
			if (c && p->Id < m_frames.size())
				_linkFrame(p->Id, c->Id, -1);
			
			if (s && p->Id < m_frames.size())
				_linkFrame(p->Id, -1, s->Id);


			 
			st.push((FRAME*)pCurFrame->pFrameFirstChild);
			st.push((FRAME*)pCurFrame->pFrameSibling);
		}
	}
}
void MeshX::_linkFrame(BONE_ID parentFrameId, BONE_ID childFrameId, BONE_ID siblingID)
{

	if (parentFrameId != -1 && childFrameId != -1)
	{
		m_frames[parentFrameId].childId = childFrameId;
		m_frames[childFrameId].parentId = parentFrameId;
	}
	else if (parentFrameId != -1 && siblingID != -1)
	{
		m_frames[parentFrameId].siblingId = siblingID;
		//m_frames[siblingID].parentId = parentFrameId;
	}
 
	 
}

I will get these

0	Bip001	no parent	Bip001_Pelvis	Body01
1	Bip001_Pelvis	        Bip001	        Bip001_Spine	no sibling
2	 Bip001_Spine	        Bip001_Pelvis	Bip001_Spine1	Bip001_L_Thigh
3	 Bip001_Spine1         	Bip001_Spine	Bip001_Spine2	no sibling
4	 Bip001_Spine2	        Bip001_Spine1	Bip001_Spine3	no sibling
5	 Bip001_Spine3	        Bip001_Spine2	Bip001_Neck	no sibling
6	 Bip001_Neck	        Bip001_Spine3	Bip001_Head	Bip001_L_Clavicle
7	 Bip001_Head	        Bip001_Neck	no child	no sibling
8	Bip001_L_Clavicle	no parent	Bip001_L_UpperArm	Bip001_R_Clavicle
9	Bip001_L_UpperArm	Bip001_L_Clavicle	Bip001_L_Forearm	no sibling
10	Bip001_L_Forearm	Bip001_L_UpperArm	Bip001_L_Hand	no sibling
11	Bip001_L_Hand          	Bip001_L_Forearm	Bip001_L_Finger0	no sibling
12	Bip001_L_Finger0	Bip001_L_Hand	no child	no sibling
13	Bip001_R_Clavicle	no parent	Bip001_R_UpperArm	no sibling
14	Bip001_R_UpperArm	Bip001_R_Clavicle	Bip001_R_Forearm	no sibling
15	Bip001_R_Forearm	Bip001_R_UpperArm	Bip001_R_Hand	no sibling
16	Bip001_R_Hand	        Bip001_R_Forearm	Bip001_R_Finger0	no sibling
17	Bip001_R_Finger0	Bip001_R_Hand	no child	no sibling
18	Bip001_L_Thigh	        no parent	Bip001_L_Calf	Bip001_R_Thigh
19	Bip001_L_Calf	        Bip001_L_Thigh	Bip001_L_Foot	no sibling
20	Bip001_L_Foot	        Bip001_L_Calf	Bip001_L_Toe0	no sibling
21	Bip001_L_Toe0	        Bip001_L_Foot	Bip001_L_Toe01	no sibling
22	Bip001_L_Toe01	        Bip001_L_Toe0	Bip001_L_Toe02	no sibling
23	Bip001_L_Toe02	        Bip001_L_Toe01	no child	no sibling
24	Bip001_R_Thigh        	no parent	Bip001_R_Calf	no sibling
25	Bip001_R_Calf	        Bip001_R_Thigh	Bip001_R_Foot	no sibling
26	Bip001_R_Foot	        Bip001_R_Calf	Bip001_R_Toe0	no sibling
27	Bip001_R_Toe0	        Bip001_R_Foot	Bip001_R_Toe01	no sibling
28	Bip001_R_Toe01	        Bip001_R_Toe0	Bip001_R_Toe02	no sibling
29	Bip001_R_Toe02	        Bip001_R_Toe01	no child	no sibling
30	Body01	no parent	no child	no sibling

Assuming nothing wrong with the x file. You can see Bip001_L_Clavicle,

Bip001_R_Clavicle has no parents But their parents are supposed to be Bip001_Spine3

I test it in some other parser, it does indicate that

And Bip001_L_Thigh and R_Thigh should get the parent of Bip001_Pelvis

Any ideas how to fix this?

Thanks

Jack

This seems like something easily done using a debugger.

Also, it seems like parents can have only one child, but multiple childs can have the same parent?

I've solved it myself. I actually retrieve the parent of the parent and pass the sibling ID as the childID

to the _linkframe function, and it solved the problem

BTW, I've rewritten the _linkframe function significantly. But you can find it here

https://github.com/yorung/dx11bvh

Thanks

Jack