Impact Crater Terrain - Arizona Meteorite Crater USA: real-world terrain tile of 2,496 x 2,496 m with 187 m of relief, built from USGS lidar (1 m) and draped with a USDA aerial photograph. Made for aerial and medium-distance shots: flyovers, establishing shots, documentary, education and presentation backdrops.

What you get

• Blender 4.5 file (main product): LOD1 visible, LOD2 and LOD3 in hidden collections, and a Render Setup collection with a camera, a sun matched to the shadows in the aerial photo, a procedural sky and haze. Press F12 to render the first preview image. No HDRI or third-party assets inside.
• FBX, OBJ, USD and GLB of LOD1-LOD3; every archive works on its own.
• Optional full-resolution LOD0 (2 m grid, 1,557,504 quads) as FBX in its own archive.
• 8K PBR maps: aerial BaseColor, procedural BaseColor (lighting-free alternative), Roughness, and a Normal map baked for each LOD. A 4K set and a 16-bit heightmap come in a separate archive.
• A README in every archive with units, contents, limitations and credits.

Specifications

• LOD0: 2 m grid, 1,557,504 quads, 1,560,001 vertices
• LOD1: 4 m grid, 389,376 quads, 390,625 vertices
• LOD2: 8 m grid, 97,344 quads, 97,969 vertices
• LOD3: 16 m grid, 24,336 quads, 24,649 vertices
• Real-world scale in metres, origin at the centre of the footprint and the lowest point, identity transforms, one object and one material per LOD. Distances are UTM grid distances; true ground distances are 0.07 % longer.
• 8192 px maps: one texel = 0.30 m on the ground. Normal maps are OpenGL convention (flip green for DirectX software such as Unreal Engine).
• UVs: one planar, non-overlapping map shared by all LODs.

Viewing distance and limitations

• Built for aerial and medium distance. One 8K texel covers one pixel of a 1920 px frame at about 627 m; closer than that the ground gets soft. Ground-level close-ups need your own detail. The medium and low-altitude previews show the file as delivered.
• Height field: one height per position. No overhangs or vertical faces; steep walls have stretched quads and stretched top-down texture.
• The aerial BaseColor is a photograph (2023-06-27) and contains that day's sun shadows. The procedural map is the lighting-free alternative.
• Elevation from lidar collected 2023-05-28 to 2023-09-05; the aerial photo was taken at a different date.
• The crater is on private land. This model is built only from public USGS and USDA data and is not affiliated with, or endorsed by, the operator of the site.
• Bare-earth surface as surveyed; later changes on site are not included. Grid spacing is not positional accuracy: a visual asset, not survey data.
• The procedural BaseColor and the Roughness map are a designed palette placed by terrain rules, not measured colour.

Checked before upload

• Every archive was extracted to an empty folder and every file reimported in Blender 4.5: face counts, real-world size within 1 cm, UVs and texture links (14 of 14 files passed).
• FBX imported in 3ds Max 2027 with default settings: correct real-world size (2,496 x 2,496 m), all faces, textures found through the relative paths.
• In a centimetre scene Max shows the unit conversion as object scale 100; Reset XForm bakes it if you need scale 1.
• Max loads every bitmap with gamma 2.2: set the Normal and Roughness bitmaps to gamma override 1.0.
• Not tested in Maya, Cinema 4D, Unreal Engine or Unity.