Adding CAMorph to CAPoseMorphTag [SOLVED]

  • On 12/05/2015 at 11:10, xxxxxxxx wrote:

    User Information:
    Cinema 4D Version:   R16 
    Platform:   Windows  ;   
    Language(s) :     C++  ;

    Hi, I am trying to add a absolute pose morph to the pose morph tag in C++. Below is code that adds a new morph to the tag.

    CAPoseMorphTag * rootPose = (CAPoseMorphTag * )clone->MakeTag(Tposemorph, nullptr);
    C4DAtom * rootAtom = (C4DAtom * )rootPose;
    rootAtom->SetParameter(DescID(ID_CA_POSE_POINTS), GeData(1), DESCFLAGS_SET_0);
    CAMorph * morph = rootPose->AddMorph();
    morph->SetTarget(rootPose, document, obj);
    morph->SetMode(document, rootPose, CAMORPH_MODE_FLAGS_COLLAPSE, CAMORPH_MODE_ABS);
    morph->Apply(document, rootPose, CAMORPH_DATA_FLAGS_POINTS);

    This code fails to set the morph mixing mode to absolute. I've also tried to set the mixing mode via SetParameter using ID_CA_POSE_MIXING. But this crashes C4D.

    C4DAtom * morphAtom = (C4DAtom * )morph;
    morphAtom->SetParameter(DescID(ID_CA_POSE_MIXING), GeData(ID_CA_POSE_MIXING_ABS), DESCFLAGS_SET_0);

    I noticed that the mixing parameters are inactive. Could this be related?

    I have an alembic hierarchy. And I am generating a polygon version of that hierarchy. Each object in the hierarchy has a pose morph tag that targets the alembic equivalent object.

    How do I correctly add morph targets with the correct mixing mode?

  • On 12/05/2015 at 11:55, xxxxxxxx wrote:

    Figured it out, you have to set the pose morph tag's active morph index. Like this:

    rootPose->SetParameter(DescID(ID_CA_POSE_MIXING), GeData(ID_CA_POSE_MIXING_ABS), DESCFLAGS_SET_0);

    This seems to select the pose morph in the pose list, allowing you to access the parameters.

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