这是一次在AC里实现开放世界的尝试，1km*1km的风格化地图，对3D树、自然地形、碰撞、lod...进行了测试。 共有6530棵树（平均每棵树650个三角面），1882块石头，所有岩石植被都生成在合理的位置，并且有其独特的大小和形状。地图中任何地方都能去，你可以随意探索，可以玩柏油、拉力，甚至越野。 之后可能会添加季节变化、彩蛋等。 This is an attempt to implement an open world in AC, a 1km*1km stylized map, and tests for 3D trees, natural terrain, collisions, lods... . There are 6530 trees (average 650 triangular faces per tree), 1882 stones, all rock vegetation is generated in reasonable locations, and has its own unique size and shape. You can go anywhere on the map, you can explore at will, you can play asphalt, rally, or even off-road. Seasonal changes, Easter eggs, etc. may be added later.