A stylized portal effect that materializes and expands into a full-fledged rectangular gate, created from animated pixel blocks. The portal gradually unfolds vertically, creating the effect of a digital opening, remains active for a configurable duration, and then collapses and disappears. Ideal for sci-fi, cyberpunk, teleportation, object spawning, level transitions, UI interactions, and dimensional gate effects.

Demo video: https://youtu.be/iOBkt_QMutw