Method MergeScenes

code/Common/SceneCombiner.cpp:178–210

------------------------------------------------------------------------------------------------ Merges two scenes. Currently only used by the LWS loader.

// ------------------------------------------------------------------------------------------------
// Merges two scenes. Currently only used by the LWS loader.
void SceneCombiner::MergeScenes(aiScene **_dest, std::vector<aiScene *> &src, unsigned int flags) {
    if (nullptr == _dest) {
        return;
    }

    // if _dest points to nullptr allocate a new scene. Otherwise clear the old and reuse it
    if (src.empty()) {
        if (*_dest) {
            (*_dest)->~aiScene();
            SceneCombiner::CopySceneFlat(_dest, src[0]);
        } else
            *_dest = src[0];
        return;
    }
    if (*_dest) {
        (*_dest)->~aiScene();
        new (*_dest) aiScene();
    } else
        *_dest = new aiScene();

    // Create a dummy scene to serve as master for the others
    aiScene *master = new aiScene();
    master->mRootNode = new aiNode();
    master->mRootNode->mName.Set("<MergeRoot>");

    std::vector<AttachmentInfo> srcList(src.size());
    for (unsigned int i = 0; i < srcList.size(); ++i) {
        srcList[i] = AttachmentInfo(src[i], master->mRootNode);
    }

    // 'master' will be deleted afterwards
    MergeScenes(_dest, master, srcList, flags);
}

// ------------------------------------------------------------------------------------------------
void SceneCombiner::AttachToGraph(aiNode *attach, std::vector<NodeAttachmentInfo> &srcList) {