stylized portal 3d model

A simple stylized 3D portal for a Roblox game lobby. The portal should look dark, ominous and dangerous, representing an entrance back into an infinite death loop. Design: * Large rectangular portal frame * Thick, chunky frame with simple geometry * Dark black and charcoal metal material * Bright glowing red energy inside the portal * Red neon cracks and subtle glowing details around the frame * Slightly damaged and sinister appearance * Small spikes or angular details around the outer frame * Strong red glow coming from the center * The inside of the portal should look like a mysterious red void * Symmetrical design * No text * No logos * No characters * No environment or background * Portal only Style: Stylized 3D game asset, low-poly, Roblox-friendly, clean geometry, optimized, simple but high quality, slightly cartoonish rather than photorealistic. The portal should look impressive from the front and remain visually clear from a distance. Make it suitable as a standalone game