Method getNextNodePosition

Source/Falcor/RenderGraph/RenderGraphUI.cpp:1322–1363

}

float2 RenderGraphUI::getNextNodePosition(uint32_t nodeID)
{
    const float offsetX = 384.0f;
    const float offsetY = 128.0f;
    float2 newNodePosition = mNewNodeStartPosition;

    auto topologicalSort = DirectedGraphTopologicalSort::sort(*mpRenderGraph->mpGraph);

    // For each object in the vector, if it's being used in the execution, put it in the list
    for (auto& node : topologicalSort)
    {
        newNodePosition.x += offsetX;

        if (node == nodeID)
        {
            const DirectedGraph::Node* pNode = mpRenderGraph->mpGraph->getNode(nodeID);
            if (!pNode->getIncomingEdgeCount())
            {
                newNodePosition.y += offsetY * pNode->getIncomingEdgeCount() * nodeID;
                break;
            }

            for (uint32_t i = 0; i < pNode->getIncomingEdgeCount(); ++i)
            {
                uint32_t outgoingEdgeCount =
                    mpRenderGraph->mpGraph->getNode(mpRenderGraph->mpGraph->getEdge(pNode->getIncomingEdge(i))->getSourceNode())
                        ->getOutgoingEdgeCount();
                if (outgoingEdgeCount > pNode->getIncomingEdgeCount())
                {
                    // move down by index in
                    newNodePosition.y += offsetY * (outgoingEdgeCount - pNode->getIncomingEdgeCount());
                    break;
                }
            }
            break;
        }
    }

    if (newNodePosition.x > mMaxNodePositionX)
        mMaxNodePositionX = newNodePosition.x;
    return newNodePosition;
}

void RenderGraphUI::updateDisplayData(RenderContext* pRenderContext)
{