bool NifImporter::ImportSkin(ImpNode *node, NiTriBasedGeomRef triGeom, int v_start/*=0*/)
{
bool ok = true;
NiSkinInstanceRef nifSkin = triGeom->GetSkinInstance();
if (!nifSkin)
return false;
INode *tnode = node->GetINode();
NiSkinDataRef data = nifSkin->GetSkinData();
NiSkinPartitionRef part = nifSkin->GetSkinPartition();
vector<NiNodeRef> nifBones = nifSkin->GetBones();
//create a skin modifier and add it
Modifier *skinMod = GetOrCreateSkin(tnode);
TriObject *triObject = GetTriObject(tnode->GetObjectRef());
Mesh& m = triObject->GetMesh();
//get the skin interface
if (ISkin *skin = (ISkin *) skinMod->GetInterface(I_SKIN)){
ISkinImportData* iskinImport = (ISkinImportData*) skinMod->GetInterface(I_SKINIMPORTDATA);
// Set the num weights to 4. Yes its in the nif but Shon doesn't like to expose those values
// and the value always seems to be 4 anyway. I'd also this be more dynamic than hard coded numbers
// but I cant figure out the correct values to pass the scripting engine from here so I'm giving up.
int numWeightsPerVertex = 4;
#if VERSION_3DSMAX >= ((5000<<16)+(15<<8)+0) // Version 5+
IParamBlock2 *params = skinMod->GetParamBlockByID(2/*advanced*/);
params->SetValue(0x7/*bone_Limit*/, 0, numWeightsPerVertex);
#endif
// Can get some truly bizarre animations without this in MAX with Civ4 Leaderheads
#if VERSION_3DSMAX > ((5000<<16)+(15<<8)+0) // Version 6+
BOOL ignore = TRUE;
params->SetValue(0xE/*ignoreBoneScale*/, 0, ignore);
#endif
//RefTargetHandle advanced = skinMod->GetReference(3);
//setMAXScriptValue(advanced, "bone_Limit", 0, numWeightsPerVertex);
Matrix3 geom = TOMATRIX3(triGeom->GetLocalTransform());
Matrix3 m3 = TOMATRIX3(data->GetOverallTransform());
Matrix3 im3 = Inverse(m3);
Matrix3 nm3 = im3 * geom;
iskinImport->SetSkinTm(tnode, nm3, nm3); // ???
// Create Bone List
Tab<INode*> bones;
for (size_t i=0; i<nifBones.size(); ++i){
NiNodeRef bone = nifBones[i];
if (INode *boneRef = FindNode(bone)) {
bones.Append(1, &boneRef);
iskinImport->AddBoneEx(boneRef, TRUE);
//// Set Bone Transform
Matrix3 b3 = TOMATRIX3(data->GetBoneTransform(i));
Matrix3 ib3 = Inverse(b3);
ib3 *= geom;
iskinImport->SetBoneTm(boneRef, ib3, ib3);
}
}
if (bones.Count() != data->GetBoneCount())
return false;
ObjectState os = tnode->EvalWorldState(0);
// Need to get a list of bones and weights for each vertex.
vector<VertexHolder> vertexHolders;
vertexHolders.resize(m.numVerts);
for (int i=0, n=data->GetBoneCount();i<n; ++i){
if (INode *boneRef = bones[i]){
vector<SkinWeight> weights = data->GetBoneWeights(i);
for (vector<SkinWeight>::iterator itr=weights.begin(), end=weights.end(); itr != end; ++itr){
VertexHolder& h = vertexHolders[itr->index];
h.vertIndex = itr->index;
++h.count;
h.weights.Append(1, &itr->weight);
h.boneNodeList.Append(1, &boneRef);
}
}
}
tnode->EvalWorldState(0);
skinMod->DisableModInViews();
skinMod->EnableModInViews();
#if VERSION_3DSMAX < ((5000<<16)+(15<<8)+0) // Version 4
gi->SetCommandPanelTaskMode(TASK_MODE_MODIFY);
gi->SelectNode(tnode);
#endif
// Assign the weights
for (vector<VertexHolder>::iterator itr=vertexHolders.begin(), end=vertexHolders.end(); itr != end; ++itr){
VertexHolder& h = (*itr);
if (h.count){
float sum = 0.0f;
for (int i = 0; i < h.count; ++i)
sum += h.weights[i];
ASSERT(fabs(sum-1.0f) < 0.001f);
BOOL add = iskinImport->AddWeights(tnode, h.vertIndex, h.boneNodeList, h.weights);
add = add; // What was the purpose of this?
}
}
// This is a kludge to get skin transforms to update and avoid jumping around after modifying the transforms.
// Initially they show up incorrectly but magically fix up if you go to the modifier roll up.
// There is still an outstanding issue with skeleton and GetObjectTMBeforeWSM.
skinMod->DisableModInViews();
skinMod->EnableModInViews();
// If BSDismembermentSkinInstance, ...
if ( BSDismemberSkinInstanceRef bsdsi = DynamicCast<BSDismemberSkinInstance>(nifSkin) )
{
Modifier *dismemberSkinMod = GetOrCreateBSDismemberSkin(tnode);
if (IBSDismemberSkinModifier *disSkin = (IBSDismemberSkinModifier *) dismemberSkinMod->GetInterface(I_BSDISMEMBERSKINMODIFIER)){
// Evaluate node ensure the modifier data is created
// ObjectState os = tnode->EvalWorldState(0);
FaceMap faceMap;
int nfaces = m.getNumFaces();
for ( int i=0; i<nfaces; ++i ){
Face f = m.faces[i];
faceMap[ rotate(f) ] = i;
}
Tab<IBSDismemberSkinModifierData*> modData = disSkin->GetModifierData();
for (int i=0; i<modData.Count(); ++i) {
IBSDismemberSkinModifierData* bsdsmd = modData[i];
Tab<BSDSPartitionData> &flags = bsdsmd->GetPartitionFlags();
vector<BodyPartList> partitions = bsdsi->GetPartitions();
if (partitions.empty())
continue;
//bsdsmd->SetActivePartition( partitions.size() - 1 ); // Old Code
for (unsigned int j = 0; j < (partitions.size() - 1); ++j){
bsdsmd->AddPartition();
}
for (unsigned int j=0; j < partitions.size(); ++j ) {
flags[j].bodyPart = (DismemberBodyPartType)partitions[j].bodyPart;
flags[j].partFlag = partitions[j].partFlag;
}
for (int j=0; j < part->GetNumPartitions(); ++j) {
bsdsmd->SetActivePartition( j );
dismemberSkinMod->SelectAll(3); // ensures bitarrays are properly synced to mesh
dismemberSkinMod->ClearSelection(3);
vector<Triangle> triangles = part->GetTriangles(j);
vector<unsigned short> map = part->GetVertexMap(j);
GenericNamedSelSetList& fselSet = bsdsmd->GetFaceSelList();
if ( BitArray* fsel = fselSet.GetSetByIndex(j) )
{
for (vector<Triangle>::iterator itrtri = triangles.begin(); itrtri != triangles.end(); ++itrtri) {
Face f;
f.setVerts( map[(*itrtri).v1], map[(*itrtri).v2], map[(*itrtri).v3] );
FaceMap::iterator fitr = faceMap.find( rotate(f) );
if (fitr != faceMap.end())
fsel->Set((*fitr).second);
}
}
}
bsdsmd->SetActivePartition( 0 );
disSkin->LocalDataChanged();
}
}
}
}
return ok;
}
void Import::ApplyModifiers (dScene& scene, const MaxNodeChache& maxNodeCache)
{
dScene::Iterator iter (scene);
for (iter.Begin(); iter; iter ++) {
dScene::dTreeNode* meshNode = iter.GetNode();
dNodeInfo* info = scene.GetInfoFromNode(meshNode);
if (info->IsType(dGeometryNodeInfo::GetRttiType())) {
dScene::dTreeNode* skinModifierNode = NULL;
for (void* ptr = scene.GetFirstChild(meshNode); ptr; ptr = scene.GetNextChild(meshNode, ptr)) {
dScene::dTreeNode* node = scene.GetNodeFromLink(ptr);
dNodeInfo* info = scene.GetInfoFromNode(node);
if (info->GetTypeId() == dGeometryNodeSkinModifierInfo::GetRttiType()) {
skinModifierNode = node;
break;
}
}
if (skinModifierNode) {
//create a skin modifier and add it
Modifier* skinMod = (Modifier*) CreateInstance(OSM_CLASS_ID, SKIN_CLASSID);
ISkinImportData* iskinImport = (ISkinImportData*) skinMod->GetInterface(I_SKINIMPORTDATA);
INode* maxNode = maxNodeCache.Find(meshNode)->GetInfo();
_ASSERTE (maxNode);
IDerivedObject *derob = NULL;
Object* obj = maxNode->GetObjectRef();
if(obj->SuperClassID() != GEN_DERIVOB_CLASS_ID)
{
derob = CreateDerivedObject(obj);
maxNode->SetObjectRef(derob);
} else {
derob = (IDerivedObject*) obj;
}
derob->AddModifier(skinMod);
dGeometryNodeSkinModifierInfo* skinModifier = (dGeometryNodeSkinModifierInfo*) scene.GetInfoFromNode(skinModifierNode);
dMatrix matrix (skinModifier->m_shapeBindMatrix);
Matrix3 bindPoseMatrix;
bindPoseMatrix.SetRow (0, *((Point3*) &matrix[0]));
bindPoseMatrix.SetRow (1, *((Point3*) &matrix[1]));
bindPoseMatrix.SetRow (2, *((Point3*) &matrix[2]));
bindPoseMatrix.SetRow (3, *((Point3*) &matrix[3]));
iskinImport->SetSkinTm(maxNode, bindPoseMatrix, bindPoseMatrix);
int maxNodeCount = 0;
INode* maxNodes[1024];
for (void* ptr = scene.GetFirstChild(skinModifierNode); ptr; ptr = scene.GetNextChild(skinModifierNode, ptr)) {
dScene::dTreeNode* boneNode = scene.GetNodeFromLink(ptr);
INode* skelBone = maxNodeCache.Find(boneNode)->GetInfo();
maxNodes[maxNodeCount] = skelBone;
maxNodeCount ++;
skelBone->SetBoneNodeOnOff(TRUE, 0);
skelBone->BoneAsLine(TRUE);
skelBone->ShowBone(1);
if (iskinImport->AddBoneEx(skelBone, TRUE)) {
dSceneNodeInfo* sceneNode = (dSceneNodeInfo*) scene.GetInfoFromNode(boneNode);
dMatrix matrix (sceneNode->GetTransform());
Matrix3 bindPoseMatrix;
bindPoseMatrix.SetRow (0, *((Point3*) &matrix[0]));
bindPoseMatrix.SetRow (1, *((Point3*) &matrix[1]));
bindPoseMatrix.SetRow (2, *((Point3*) &matrix[2]));
bindPoseMatrix.SetRow (3, *((Point3*) &matrix[3]));
iskinImport->SetBoneTm(skelBone, bindPoseMatrix, bindPoseMatrix);
}
}
// must evaluate the node after adding bones
maxNode->EvalWorldState(0);
for (int i = 0; i < skinModifier->m_vertexCount; i ++) {
Tab<float> weightList;
Tab<INode*> boneNodeList;
for (int j = 0; j < 4; j ++) {
if (skinModifier->m_vertexWeights[i][j] > 1.0e-5f) {
int boneIndex = skinModifier->m_boneWeightIndex[i].m_index[j];
INode *skelBone = maxNodes[boneIndex];
_ASSERTE (skelBone);
boneNodeList.Append (1, &skelBone);
weightList.Append (1, &skinModifier->m_vertexWeights[i][j]);
}
}
iskinImport->AddWeights(maxNode, i, boneNodeList, weightList);
}
}
}
}
}
