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try to find root joint node for skeleton

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This commit is contained in:
Angelo Scandaliato
2016-10-08 19:18:13 -07:00
parent c49971e120
commit 1f377bc99d
3 changed files with 38 additions and 4 deletions
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38
code/glTFExporter.cpp
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@@ -389,6 +389,39 @@ bool FindMeshNode(Ref<Node>& nodeIn, Ref<Node>& meshNode, std::string meshID)
return false;
}
/*
* Find the root joint of the skeleton.
*/
Ref<Node> FindSkeletonRootJoint(Ref<Skin>& skinRef)
{
Ref<Node> candidateNodeRef;
Ref<Node> testNodeRef;
for (unsigned int i = 0; i < skinRef->jointNames.size(); ++i) {
candidateNodeRef = skinRef->jointNames[i];
bool candidateIsRoot = true;
for (unsigned int j = 0; j < skinRef->jointNames.size(); ++j) {
if (i == j) continue;
testNodeRef = skinRef->jointNames[j];
for (unsigned int k = 0; k < testNodeRef->children.size(); ++k) {
std::string childNodeRefID = testNodeRef->children[k]->id;
if (childNodeRefID.compare(candidateNodeRef->id) == 0) {
candidateIsRoot = false;
}
}
}
if(candidateIsRoot == true) {
return candidateNodeRef;
}
}
return candidateNodeRef;
}
void ExportSkin(Asset& mAsset, const aiMesh* aim, Ref<Mesh>& meshRef, Ref<Buffer>& bufferRef)
{
std::string skinName = aim->mName.C_Str();
@@ -417,7 +450,7 @@ void ExportSkin(Asset& mAsset, const aiMesh* aim, Ref<Mesh>& meshRef, Ref<Buffer
// Find the node with id = mName.
Ref<Node> nodeRef = mAsset.nodes.Get(aib->mName.C_Str());
nodeRef->jointName = "joint_" + std::to_string(idx_bone);
skinRef->jointNames.push_back("joint_" + std::to_string(idx_bone));
skinRef->jointNames.push_back(nodeRef);
// Identity Matrix =====> skinRef->bindShapeMatrix
// Temporary. Hard-coded identity matrix here
@@ -456,7 +489,8 @@ void ExportSkin(Asset& mAsset, const aiMesh* aim, Ref<Mesh>& meshRef, Ref<Buffer
Ref<Node> meshNode;
FindMeshNode(rootNode, meshNode, meshRef->id);
meshNode->skeletons.push_back(mAsset.nodes.Get(aim->mBones[0]->mName.C_Str()));
Ref<Node> rootJoint = FindSkeletonRootJoint(skinRef);
meshNode->skeletons.push_back(rootJoint);
meshNode->skin = skinRef;
}