glowing blue portal 3d model

A minimalist sci-fi portal designed for a top-down 3D game. The portal consists of a simple geometric frame made of clean, hard-surface shapes (mostly cubes and rectangular forms). In the center is a glowing energy field with a soft emissive light, slightly transparent, using a single vibrant color (blue or cyan). The design is abstract and stylized, not realistic, with smooth edges and simple geometry. No small details, no textures, flat colors only. The portal should clearly read as an interactive gameplay object from a distance. Optimized for real-time games, low-poly, game-ready.