A sleek hyperrealistic 3D rendered abandoned Japanese onsen thermal bathhouse nestled in misty mountain forest at dawn, weathered wooden structures with curved tiled roofs, steaming natural hot spring pools surrounded by smooth river stones, morning light filtering through cedar trees creating ethereal volumetric fog, hand-painted watercolor texture with visible brushstrokes, frame-by-frame animation aesthetic, soft sage green and warm amber sunrise palette, cinematic composition with strong cultural heritage depth, Blender Cycles quality with raytracing, PBR materials, volumetric mist, soft global illumination, serene forgotten sanctuary atmosphere