Method Postprocess_BuildConstellation

code/AssetLib/AMF/AMFImporter_Postprocess.cpp:670–723

}

void AMFImporter::Postprocess_BuildConstellation(AMFConstellation &pConstellation, NodeArray &nodeArray) const {
    aiNode *con_node;
    std::list<aiNode *> ch_node;

    // We will build next hierarchy:
    // aiNode as parent (<constellation>) for set of nodes as a children
    //  |- aiNode for transformation (<instance> -> <delta...>, <r...>) - aiNode for pointing to object ("objectid")
    //  ...
    //  \_ aiNode for transformation (<instance> -> <delta...>, <r...>) - aiNode for pointing to object ("objectid")
    con_node = new aiNode;
    con_node->mName = pConstellation.ID;
    // Walk through children and search for instances of another objects, constellations.
    for (const AMFNodeElementBase *ne : pConstellation.Child) {
        aiMatrix4x4 tmat;
        aiNode *t_node;
        aiNode *found_node;

        if (ne->Type == AMFNodeElementBase::ENET_Metadata) continue;
        if (ne->Type != AMFNodeElementBase::ENET_Instance) throw DeadlyImportError("Only <instance> nodes can be in <constellation>.");

        // create alias for convenience
        AMFInstance &als = *((AMFInstance *)ne);
        // find referenced object
        if (!Find_ConvertedNode(als.ObjectID, nodeArray, &found_node)) Throw_ID_NotFound(als.ObjectID);

        // create node for applying transformation
        t_node = new aiNode;
        t_node->mParent = con_node;
        // apply transformation
        aiMatrix4x4::Translation(als.Delta, tmat), t_node->mTransformation *= tmat;
        aiMatrix4x4::RotationX(als.Rotation.x, tmat), t_node->mTransformation *= tmat;
        aiMatrix4x4::RotationY(als.Rotation.y, tmat), t_node->mTransformation *= tmat;
        aiMatrix4x4::RotationZ(als.Rotation.z, tmat), t_node->mTransformation *= tmat;
        // create array for one child node
        t_node->mNumChildren = 1;
        t_node->mChildren = new aiNode *[t_node->mNumChildren];
        SceneCombiner::Copy(&t_node->mChildren[0], found_node);
        t_node->mChildren[0]->mParent = t_node;
        ch_node.push_back(t_node);
    } // for(const CAMFImporter_NodeElement* ne: pConstellation.Child)

    // copy found aiNode's as children
    if (ch_node.empty()) throw DeadlyImportError("<constellation> must have at least one <instance>.");

    size_t ch_idx = 0;

    con_node->mNumChildren = static_cast<unsigned int>(ch_node.size());
    con_node->mChildren = new aiNode *[con_node->mNumChildren];
    for (aiNode *node : ch_node)
        con_node->mChildren[ch_idx++] = node;

    // and place "root" of <constellation> node to node list
    nodeArray.push_back(con_node);
}

void AMFImporter::Postprocess_BuildScene(aiScene *pScene) {
    NodeArray nodeArray;