Method WriteAnimationLibrary

code/AssetLib/Collada/ColladaExporter.cpp:1340–1501

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}
// ------------------------------------------------------------------------------------------------
void ColladaExporter::WriteAnimationLibrary(size_t pIndex) {
    const aiAnimation *anim = mScene->mAnimations[pIndex];
    if (anim == nullptr) {
        return;
    }

    if (anim->mNumChannels == 0 && anim->mNumMeshChannels == 0 && anim->mNumMorphMeshChannels == 0) {
        return;
    }

    const std::string animationNameEscaped = GetObjectName(AiObjectType::Animation, pIndex);
    const std::string idstrEscaped = GetObjectUniqueId(AiObjectType::Animation, pIndex);

    mOutput << startstr << "<animation id=\"" + idstrEscaped + "\" name=\"" + animationNameEscaped + "\">" << endstr;
    PushTag();

    std::string cur_node_idstr;
    for (size_t a = 0; a < anim->mNumChannels; ++a) {
        const aiNodeAnim *nodeAnim = anim->mChannels[a];
        if (nodeAnim == nullptr) {
            continue;
        }

        // sanity checks
        if (nodeAnim->mNumPositionKeys != nodeAnim->mNumScalingKeys || nodeAnim->mNumPositionKeys != nodeAnim->mNumRotationKeys) {
            continue;
        }

        {
            cur_node_idstr.clear();
            cur_node_idstr += nodeAnim->mNodeName.data;
            cur_node_idstr += std::string("_matrix-input");

            std::vector<ai_real> frames;
            for (size_t i = 0; i < nodeAnim->mNumPositionKeys; ++i) {
                frames.push_back(static_cast<ai_real>(nodeAnim->mPositionKeys[i].mTime));
            }

            WriteFloatArray(cur_node_idstr, FloatType_Time, (const ai_real *)frames.data(), frames.size());
            frames.clear();
        }

        {
            cur_node_idstr.clear();

            cur_node_idstr += nodeAnim->mNodeName.data;
            cur_node_idstr += std::string("_matrix-output");

            std::vector<ai_real> keyframes;
            keyframes.reserve(nodeAnim->mNumPositionKeys * 16);
            for (size_t i = 0; i < nodeAnim->mNumPositionKeys; ++i) {
                aiVector3D Scaling = nodeAnim->mScalingKeys[i].mValue;
                aiMatrix4x4 ScalingM; // identity
                ScalingM[0][0] = Scaling.x;
                ScalingM[1][1] = Scaling.y;
                ScalingM[2][2] = Scaling.z;

                aiQuaternion RotationQ = nodeAnim->mRotationKeys[i].mValue;