3D Model: A Stylized Low-poly Or Mid-poly 3D Terrain Base With Natural Dirt Soil Ground (not Stone), Slightly Uneven Surface, Small Grass Patches, And Tropical Vegetation Like Ferns Around The Edges. Designed To Fit An Ancient Javanese Temple Like Prambanan, With A Flat Central Area (about 100x100 Meters) To Place The Temple Model. The Terrain Should Look Natural, With Earthy Brown Textures, Subtle Elevation Variation, And Optimized For AR In Unity On Mobile Devices.