Real-time environments are built around two core technologies that have transformed modern visualisation pipelines. Dynamic global illumination systems eliminate the need for pre-baked lightmaps by calculating light bounces in real time, and virtualised geometry systems allow film-quality high-polygon assets without manual LOD creation. Together they create a workflow where what you see in the viewport is essentially your final output — a major shift from traditional offline rendering. For visualisation work this means materials, lighting and large-scale scenes can be refined interactively, removing the wait of render queues entirely.