void fbxLoader2::readAnimationTakeData(FbxNode* node)
{
FbxAnimStack* pAnimStack = FbxCast<FbxAnimStack>(scene->GetSrcObject(FBX_TYPE(FbxAnimStack)));
FbxAnimLayer* pAnimLayer = pAnimStack->GetMember(FBX_TYPE(FbxAnimLayer));
FbxAnimCurve* animCv = node->LclTranslation.GetCurve(pAnimLayer, FBXSDK_CURVENODE_COMPONENT_X);
FbxTimeSpan length = FbxTimeSpan();
int p = animCv->KeyGetCount();
const char* nameAnim = animCv->GetName();
const size_t len = strlen(nameAnim);
char * new_name = new char[len + 1];
strncpy(new_name, nameAnim, len);
animCv->GetTimeInterval(length);
FbxTime duration = length.GetDuration();
FbxTime::EMode mode = duration.GetGlobalTimeMode();
double frameRate = duration.GetFrameRate(mode);
double startt = length.GetStart().GetMilliSeconds();
double endt = length.GetStop().GetMilliSeconds();
int frames = animCv->KeyGetCount();
animationStructure = new AnimationData(new_name, startt, endt, (int)frameRate, frames);
for (int i = 0; i< frames; i++)
{
SkeletalData *sk = new SkeletalData();
for(int j = 0; j<skeleton->GetBonesCount(); j++)
{
BoneData *bonecopy = new BoneData();
bonecopy->SetID(skeleton->GetBone(j)->GetID());
bonecopy->SetName(skeleton->GetBone(j)->GetName());
bonecopy->SetParent(skeleton->GetBone(j)->GetParent());
sk->SetBones(bonecopy);
}
animationStructure->SetSkeleton(sk, i);
}
}
int32 UnFbx::FFbxImporter::GetMaxSampleRate(TArray<FbxNode*>& SortedLinks, TArray<FbxNode*>& NodeArray)
{
int32 MaxStackResampleRate = 0;
int32 AnimStackCount = Scene->GetSrcObjectCount<FbxAnimStack>();
for( int32 AnimStackIndex = 0; AnimStackIndex < AnimStackCount; AnimStackIndex++)
{
FbxAnimStack* CurAnimStack = Scene->GetSrcObject<FbxAnimStack>(AnimStackIndex);
FbxTimeSpan AnimStackTimeSpan = GetAnimationTimeSpan(SortedLinks[0], CurAnimStack);
double AnimStackStart = AnimStackTimeSpan.GetStart().GetSecondDouble();
double AnimStackStop = AnimStackTimeSpan.GetStop().GetSecondDouble();
FbxAnimLayer* AnimLayer = (FbxAnimLayer*)CurAnimStack->GetMember(0);
for(int32 LinkIndex = 0; LinkIndex < SortedLinks.Num(); ++LinkIndex)
{
FbxNode* CurrentLink = SortedLinks[LinkIndex];
FbxAnimCurve* Curves[6];
Curves[0] = CurrentLink->LclTranslation.GetCurve(AnimLayer, FBXSDK_CURVENODE_COMPONENT_X, false);
Curves[1] = CurrentLink->LclTranslation.GetCurve(AnimLayer, FBXSDK_CURVENODE_COMPONENT_Y, false);
Curves[2] = CurrentLink->LclTranslation.GetCurve(AnimLayer, FBXSDK_CURVENODE_COMPONENT_Z, false);
Curves[3] = CurrentLink->LclRotation.GetCurve(AnimLayer, FBXSDK_CURVENODE_COMPONENT_X, false);
Curves[4] = CurrentLink->LclRotation.GetCurve(AnimLayer, FBXSDK_CURVENODE_COMPONENT_Y, false);
Curves[5] = CurrentLink->LclRotation.GetCurve(AnimLayer, FBXSDK_CURVENODE_COMPONENT_Z, false);
for(int32 CurveIndex = 0; CurveIndex < 6; ++CurveIndex)
{
FbxAnimCurve* CurrentCurve = Curves[CurveIndex];
if(CurrentCurve)
{
int32 KeyCount = CurrentCurve->KeyGetCount();
FbxTimeSpan TimeInterval(FBXSDK_TIME_INFINITE,FBXSDK_TIME_MINUS_INFINITE);
bool bValidTimeInterval = CurrentCurve->GetTimeInterval(TimeInterval);
if(KeyCount > 1 && bValidTimeInterval)
{
double KeyAnimLength = TimeInterval.GetDuration().GetSecondDouble();
double KeyAnimStart = TimeInterval.GetStart().GetSecondDouble();
double KeyAnimStop = TimeInterval.GetStop().GetSecondDouble();
if(KeyAnimLength != 0.0)
{
// 30 fps animation has 31 keys because it includes index 0 key for 0.0 second
int32 NewRate = FPlatformMath::RoundToInt((KeyCount-1) / KeyAnimLength);
MaxStackResampleRate = FMath::Max(NewRate, MaxStackResampleRate);
}
}
}
}
}
}
// Make sure we're not hitting 0 for samplerate
if ( MaxStackResampleRate != 0 )
{
return MaxStackResampleRate;
}
return DEFAULT_SAMPLERATE;
}
bool UnFbx::FFbxImporter::IsValidAnimationData(TArray<FbxNode*>& SortedLinks, TArray<FbxNode*>& NodeArray, int32& ValidTakeCount)
{
// If there are no valid links, then we cannot import the anim set
if(SortedLinks.Num() == 0)
{
return false;
}
ValidTakeCount = 0;
int32 AnimStackCount = Scene->GetSrcObjectCount<FbxAnimStack>();
int32 AnimStackIndex;
for (AnimStackIndex = 0; AnimStackIndex < AnimStackCount; AnimStackIndex++ )
{
FbxAnimStack* CurAnimStack = Scene->GetSrcObject<FbxAnimStack>(AnimStackIndex);
// set current anim stack
Scene->SetCurrentAnimationStack(CurAnimStack);
// debug purpose
for (int32 BoneIndex = 0; BoneIndex < SortedLinks.Num(); BoneIndex++)
{
FString BoneName = UTF8_TO_TCHAR(MakeName(SortedLinks[BoneIndex]->GetName()));
UE_LOG(LogFbx, Log, TEXT("SortedLinks :(%d) %s"), BoneIndex, *BoneName );
}
FbxTimeSpan AnimTimeSpan = GetAnimationTimeSpan(SortedLinks[0], CurAnimStack);
if (AnimTimeSpan.GetDuration() <= 0)
{
AddTokenizedErrorMessage(FTokenizedMessage::Create(EMessageSeverity::Warning, FText::Format(LOCTEXT("FBXImport_ZeroLength", "Animation Stack {0} does not contain any valid key. Try different time options when import."), FText::FromString(UTF8_TO_TCHAR(CurAnimStack->GetName())))), FFbxErrors::Animation_ZeroLength);
continue;
}
ValidTakeCount++;
{
bool bBlendCurveFound = false;
for ( int32 NodeIndex = 0; !bBlendCurveFound && NodeIndex < NodeArray.Num(); NodeIndex++ )
{
// consider blendshape animation curve
FbxGeometry* Geometry = (FbxGeometry*)NodeArray[NodeIndex]->GetNodeAttribute();
if (Geometry)
{
int32 BlendShapeDeformerCount = Geometry->GetDeformerCount(FbxDeformer::eBlendShape);
for(int32 BlendShapeIndex = 0; BlendShapeIndex<BlendShapeDeformerCount; ++BlendShapeIndex)
{
FbxBlendShape* BlendShape = (FbxBlendShape*)Geometry->GetDeformer(BlendShapeIndex, FbxDeformer::eBlendShape);
int32 BlendShapeChannelCount = BlendShape->GetBlendShapeChannelCount();
for(int32 ChannelIndex = 0; ChannelIndex<BlendShapeChannelCount; ++ChannelIndex)
{
FbxBlendShapeChannel* Channel = BlendShape->GetBlendShapeChannel(ChannelIndex);
if(Channel)
{
// Get the percentage of influence of the shape.
FbxAnimCurve* Curve = Geometry->GetShapeChannel(BlendShapeIndex, ChannelIndex, (FbxAnimLayer*)CurAnimStack->GetMember(0));
if (Curve && Curve->KeyGetCount() > 0)
{
bBlendCurveFound = true;
break;
}
}
}
}
}
}
}
}
return ( ValidTakeCount != 0 );
}
void fbxLoader2::processMesh(FbxNode* node)
{
FbxMesh* mesh = node->GetMesh();
this->readAnimationWeigths(mesh);
if(mesh!=NULL && mesh->IsTriangleMesh())
{
for (int i = 0; i<mesh->GetControlPointsCount(); i++)
{
readVertex(mesh, i, &vertex[i]);
vertexArray[i].position = D3DXVECTOR3(vertex[i]);
}
int a = mesh->GetPolygonVertexCount();
for (int i = 0; i<mesh->GetPolygonVertexCount(); i++)
{
readUV(mesh, i, 0, &uv[i]);
readNormal(mesh, i, &normal[i]);
indices[i].indice = mesh->GetPolygonVertices()[i];
indices[i].normal1 = normal[i];
indices[i].uv1 = uv[i];
indicesMeshCount++;
}
}
//vertexLists.push_back(vertexArray);
indiceLists.push_back(indices);
FbxAnimStack* pAnimStack = FbxCast<FbxAnimStack>(scene->GetSrcObject(FBX_TYPE(FbxAnimStack)));
int numAnimLayers = pAnimStack->GetMemberCount(FBX_TYPE(FbxAnimLayer));
this->setBindPoseCluster(node);
for (int i = 0; i < numAnimLayers; i++)
{
FbxAnimLayer* pAnimLayer = pAnimStack->GetMember(FBX_TYPE(FbxAnimLayer), i);
FbxAnimCurve* animCv = this->findSkeletonRootBone(scene->GetRootNode())->GetChild(0)->LclTranslation.GetCurve(pAnimLayer, FBXSDK_CURVENODE_COMPONENT_X);
if (animCv)
{
FbxTimeSpan animationLength;
int p = animCv->KeyGetCount();
animCv->GetTimeInterval(animationLength);
for(int j = 0; j<animationStructure->GetFramesNumber();j++)
{
FbxTime timeKey = animCv->KeyGet(j).mTime;
//FbxTime interval = (duration/p)*j + animationLength.GetStart();
//int intervalVal = (duration.GetSecondCount()/p)*j + animationLength.GetStart().GetSecondCount();
const FbxTime pTime = animCv->KeyGet(j).mTime;
FbxAMatrix pGlobalPos = GetGlobalPosition(node, pTime, scene->GetPose(j));
ComputeSkinDeformation(pGlobalPos, mesh, timeKey, scene->GetPose(j), j);
}
}
}
for(int i = 0; i<node->GetChildCount(); i++)
{
processMesh(node->GetChild(i));
}
}