A cinematic 3D macro animation showing the center of a sponge cake rising and then gradually sinking in a soft, smooth flow. The cake is represented as a semi-viscous, homogeneous mass with subtle internal gas dynamics, not individual bubbles. The center slowly compresses under its own weight while the edges remain airy, creating a smooth, realistic densification. Camera focuses on the fluid-like motion of the batter collapsing softly, showing texture compacting without cracks, breaks, or hollow cavities. Lighting is warm and soft, 9:16 vertical format, smooth slow camera movement. The animation conveys the science of sponge cake collapse in an abstract, educational, and visually appealing way. No text, no labels, no sound — only visuals
