USA Eastern Forests & Lakes Real-World Terrains 100 km²

31 real-world maps of the forested hills and mountains of the eastern USA, 10 x 10 km (100 km²) each at 2.48 m. 9 demo scenes, Built-in/URP/HDRP.

• Heightmaps - 31 x 16-bit greyscale PNG, 4033 x 4033 px: 31 maps of 10.00 x 10.00 km (about 10 x 10 km, 100 square km) at 2.48 m per pixel
• Relief - 77 m to 963 m per map (lowest point of each map at 0)
• Unity terrains - one terrain of 4097 samples per map, terrain holes for the exact edge
• Height precision - one height level is about 0.2 cm on the flattest map and about 2.9 cm on the map with the largest height range
• Demo content - 3 map prefabs (one prefab works in every pipeline) + 9 demo scenes (3 per pipeline)
• Ground textures - Eastern Hardwood Forest (8 ground layers) + the shared ground layers, 4096 x 4096 albedo, normal and mask
• Water - transparent lake and river surfaces whose colour comes from the real water depth (depth texture), soft shorelines, travelling waves and river flow, for Built-in, URP and HDRP
• Shaders - anti-tiling, world-aligned terrain shaders with side projection on steep faces (triplanar) for Built-in, URP and HDRP
• Editor tools - Terrain Builder, Project Setup, USA and UK Ground Textures; PDF documentation included
• Compatibility - Unity 2022.3 and above; Built-in, URP and HDRP

▶ Full 4K video showcase: https://youtu.be/C2MjlfEi1Go

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The forested hills and mountains of the eastern United States - Ozark and Ouachita ridges, Appalachian and Allegheny mountains, the White Mountains and big branching reservoirs - at their real size, 10 x 10 km per map

31 maps of the forested hills and mountains of the eastern United States from real-world elevation data (DEM). The Ozark plateaus and Ouachita ridges of Arkansas, the Appalachian and Allegheny mountains, the granite White Mountains of New Hampshire and branching reservoirs like Beaver Lake. Each map covers 10.00 x 10.00 km (about 10 x 10 km, 100 square km) at 2.48 m between samples. Every Unity terrain sample is an original heightmap pixel - nothing is stretched or resampled - and 1 Unity unit is 1 metre.

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✦ WHAT'S INSIDE

• 31 heightmaps - 16-bit PNG, 4033 x 4033 px, relief from 77 m to 963 m per map
• One Unity terrain per map - 4097 samples at the map's own 2.48 m spacing; the unused 64-sample strip at the edge is cut away with terrain holes
• 3 demo levels x 3 render pipelines - 9 ready scenes to fly or walk through: Ozark Lake, White Mountain Peaks, Allegheny Ridges
• Terrain Builder - one click turns any heightmap into a real-scale Unity terrain
• Eastern Hardwood ground look - 8 ground layers in 4K (Eastern Hardwood Forest: meadow, forest floor, dry earth, scree, rock, gravel, bog, lake bed)
• Shore water - transparent branching reservoirs and mountain ponds: clear at the shoreline, the bed visible in the shallows, darker water further out, rivers that follow the valley downhill, a thin moving shore film and wet ground just above the water, in Built-in, URP and HDRP
• Summer forest - the ground of the demo levels is painted from the real shape of each map: hardwood forest almost everywhere, green pasture on the valley floors and grassy balds, sandstone ledges and rubble on the steepest slopes, red clay banks, marsh in the bottomlands and red clay reservoir shores

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✦ FEATURES

• Huge real-world maps - 10 x 10 km of real ground in every map, at 2.48 m between samples: ridges, hollows, plateaus, coves, creeks and branching reservoir arms are in the data itself
• Exact scale - size and height range are in every file name and inside every PNG, and the builder reads them for you
• Anti-tiling terrain shaders - every layer blends three texture sizes by viewing distance, so no repeating patterns
• Cliffs without stretching - textures are projected from the side on steep faces, so walls show real rock texture instead of vertical streaks; flat ground is unchanged
• Verify - compares every terrain height with the original pixels

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✦ PERFORMANCE

• Native 3840 x 2160 - no upscaling, demo scenes in player builds: HDRP 134-209 FPS · URP 95-225 FPS · Built-in 340-690 FPS (RTX 3090)

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✦ DEMO CONTROLS

Mouse look · WASD move · Shift fast · G walk at 1.8 m eye height · F fly · N / P next / previous level · H help

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✦ UNITY 2022.3 AND ABOVE

Built-in, URP and HDRP in one package. Tools > Lidar Terrains > Project Setup switches on terrain holes, and Shore Water Setup the depth and opaque textures the water reads, in your pipeline asset with one click. The Built-in Render Pipeline has no post-processing, so the Built-in demo levels look simpler than the URP and HDRP ones.

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✦ USE CASES

Open-world games · flight and driving simulators · hiking, hunting and survival games · cinematics · terrain studies. The heightmaps also work in other tools: 16-bit PNG, north up, size and height range in the file name.

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✦ MORE REAL-WORLD TERRAINS

Same format, same tools:

• Alaska Mountain Peaks - https://assetstore.unity.com/packages/slug/425664
• Alaska Valleys & Uplands - https://assetstore.unity.com/packages/slug/425668
• Alaska Fjords, Lakes & Volcanoes - https://assetstore.unity.com/packages/slug/425670
• British Columbia Alpine Peaks - https://assetstore.unity.com/packages/slug/425040
• British Columbia Mountain Valleys - https://assetstore.unity.com/packages/slug/425042
• British Columbia Lakes & Rivers - https://assetstore.unity.com/packages/slug/425044
• British Columbia Plateau & Eskers - https://assetstore.unity.com/packages/slug/425046