Three.js 飞行隧道实现要点：翻转法线的圆柱体、5000 个星形粒子，粒子尺寸随速度变化。
游戏概念：一款飞行模拟器，玩家驾驶“Zenith”喷气式飞机穿越一个3D粒子隧道。隧道会根据玩家的速度产生反应，将粒子拉伸成长长的运动模糊线条。 技术提示： 使用一个大型的 CylinderGeometry 构建一个3D飞行隧道，并将法线翻转。在内壁上生成5,000个星形粒子。将玩家的速度与粒子的缩放大小关联起来。
Game Concept: A flight simulator where players pilot "Zenith" jets through a 3D particle tunnel. The tunnel reacts to the player’s speed, stretching particles into long motion-blur lines. Technical Prompt: Construct a 3D flight tunnel using a large CylinderGeometry with inverted normals. Generate 5,000 star-particles along the inner walls. Link player speed to particle scale.