Aging, long-abandoned ancient cathedral with stunning stained glass windows; god rays streaming through a gaping hole in the roof, illuminating the interior as tiny sharp shards of glass seem to float through the air; seamless integration of ray tracing, rtx, shimmering reflections, with the realism of unreal engine and octane rendering; a visual feast in 4k and 8k resolution, featuring ethereal volumetric lighting and atmospheric depth.