Method addNode

Source/Falcor/Scene/SceneBuilder.cpp:1060–1092

    // Scene graph

    NodeID SceneBuilder::addNode(const Node& node)
    {
        // Validate node.
        auto validateMatrix = [&](float4x4 m, const char* field)
        {
            if (!isMatrixValid(m))
            {
                FALCOR_THROW("Node '{}' {} matrix has inf/nan values", node.name, field);
            }
            // Check the assumption that transforms are affine. Note that glm is column-major.
            if (!isMatrixAffine(m))
            {
                logWarning("SceneBuilder::addNode() - Node '{}' {} matrix is not affine. Setting last row to (0,0,0,1).", node.name, field);
                m[3] = float4(0, 0, 0, 1);
            }
            return m;
        };

        InternalNode internalNode(node);
        internalNode.transform = validateMatrix(node.transform, "transform");
        internalNode.localToBindPose = validateMatrix(node.localToBindPose, "localToBindPose");

        static_assert(NodeID::kInvalidID >= std::numeric_limits<uint32_t>::max());
        if (node.parent.isValid() && node.parent.get() >= mSceneGraph.size()) FALCOR_THROW("Node parent is out of range");
        if (mSceneGraph.size() >= std::numeric_limits<NodeID::IntType>::max()) FALCOR_THROW("Scene graph is too large");

        // Add node to scene graph.
        NodeID newNodeID{ mSceneGraph.size() };
        mSceneGraph.push_back(internalNode);
        if (node.parent.isValid()) mSceneGraph[node.parent.get()].children.push_back(newNodeID);

        return newNodeID;
    }

    void SceneBuilder::addMeshInstance(NodeID nodeID, MeshID meshID)
    {