Method updateDisplayData

Source/Falcor/RenderGraph/RenderGraphUI.cpp:1365–1561

}

void RenderGraphUI::updateDisplayData(RenderContext* pRenderContext)
{
    uint32_t nodeIndex = 0;

    mOutputToInputPins.clear();

    // set of field names that have a connection and are represented in the graph
    std::unordered_set<std::string> nodeConnectedInput;
    std::unordered_set<std::string> nodeConnectedOutput;
    std::unordered_map<std::string, uint32_t> previousGuiNodeIDs;
    std::unordered_set<uint32_t> existingIDs;

    for (const auto& currentRenderPassUI : mRenderPassUI)
    {
        existingIDs.insert(currentRenderPassUI.second.mGuiNodeID);
        previousGuiNodeIDs.insert(std::make_pair(currentRenderPassUI.first, currentRenderPassUI.second.mGuiNodeID));
    }

    mpRenderGraph->compile(pRenderContext);
    mRenderPassUI.clear();
    mInputPinStringToLinkID.clear();

    // build information for displaying graph
    for (const auto& nameToIndex : mpRenderGraph->mNameToIndex)
    {
        auto pCurrentPass = mpRenderGraph->mpGraph->getNode(nameToIndex.second);
        RenderPassUI renderPassUI;
        bool addedExecutionInput = false;
        bool addedExecutionOutput = false;

        mAllNodeTypeStrings.insert(nameToIndex.first);

        while (existingIDs.find(nodeIndex) != existingIDs.end())
        {
            nodeIndex++;
        }

        // keep the GUI id from the previous frame
        auto pPreviousID = previousGuiNodeIDs.find(nameToIndex.first);
        if (pPreviousID != previousGuiNodeIDs.end())
        {
            renderPassUI.mGuiNodeID = pPreviousID->second;
        }
        else
        {
            renderPassUI.mGuiNodeID = nodeIndex;
            nodeIndex++;
        }

        // clear and rebuild reflection for each pass.
        // TODO: This is unsafe because render pass reflection may depend on the compile data, which isn't available here.
        renderPassUI.mReflection = mpRenderGraph->mNodeData[nameToIndex.second].pPass->reflect({});

        // test to see if we have hit a graph output
        std::unordered_set<std::string> passGraphOutputs;

        for (const auto& output : mpRenderGraph->mOutputs)
        {