USA Rocky Mountains & Great Plains Real-World Terrains 100 km²
Matei Ioan Alexandru
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41 real-world maps of the Rocky Mountains and the Great Plains, 10 x 10 km (100 km²) each at 2.48 m, 1:1 scale. 9 demo scenes, Built-in/URP/HDRP.Unity 2022.3 and above. Built-in, URP and HDRP in one package. Real-scale terrains (1 unit = 1 m) built from the exact heightmap pixels.▶ Full 4K video showcase: https://youtu.be/fhWOcYwpaAEThe Rocky Mountains and the Great Plains - high limestone and quartzite ranges, a great mountain lake below a range front, deep canyons, pine hills and wide prairie - at their real size, 10 x 10 km per map41 maps of the Rocky Mountains and the Great Plains from real-world elevation data (DEM). High ranges of the Wasatch, the Bighorns and the Teton front, the granite pine hills of the Black Hills, deep canyons and wide prairie of Nebraska, South Dakota, Kansas and Texas. 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.✦ WHAT'S INSIDE41 heightmaps - 16-bit PNG, 4033 x 4033 px, relief from 82 m to 1,756 m per mapOne 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 holes3 demo levels x 3 render pipelines - 9 ready scenes to fly or walk through: Mountain Lake Front, Wasatch Peaks, Bighorn CanyonTerrain Builder - one click turns any heightmap into a real-scale Unity terrainRocky Mountains and Prairie ground look - 8 ground layers in 4K (Rocky Mountains and Prairie: meadow, forest floor, dry earth, scree, rock, gravel, bog, lake bed)Shore water - transparent mountain lakes below a range front and prairie reservoirs: 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 HDRPSummer in the West - the ground of the demo levels is painted from the real shape of each map: pine forest on the shaded slopes, olive and straw grass on the sunny ones and across the prairie, limestone walls and talus, sage soil on dry slopes and green willow meadows along the creeks✦ FEATURESHuge real-world maps - 10 x 10 km of real ground in every map, at 2.48 m between samples: range fronts, canyons, cirques, moraines, hogbacks, breaks, draws and prairie creeks are in the data itselfExact scale - size and height range are in every file name and inside every PNG, and the builder reads them for youAnti-tiling terrain shaders - every layer blends three texture sizes by viewing distance, so no repeating patternsCliffs without stretching - textures are projected from the side on steep faces, so walls show real rock texture instead of vertical streaks; flat ground is unchangedVerify - compares every terrain height with the original pixels✦ PERFORMANCENative 3840 x 2160 - no upscaling, demo scenes in player builds: HDRP 98-119 FPS · URP 101-119 FPS · Built-in 132-192 FPS (RTX 3090)✦ DEMO CONTROLSMouse look · WASD move · Shift fast · G walk at 1.8 m eye height · F fly · N / P next / previous level · H help✦ UNITY 2022.3 AND ABOVEBuilt-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.✦ USE CASESOpen-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.✦ MORE REAL-WORLD TERRAINSSame format, same tools:Alaska Mountain Peaks - https://assetstore.unity.com/packages/slug/425664Alaska Valleys & Uplands - https://assetstore.unity.com/packages/slug/425668Alaska Fjords, Lakes & Volcanoes - https://assetstore.unity.com/packages/slug/425670British Columbia Alpine Peaks - https://assetstore.unity.com/packages/slug/425040British Columbia Mountain Valleys - https://assetstore.unity.com/packages/slug/425042British Columbia Lakes & Rivers - https://assetstore.unity.com/packages/slug/425044British Columbia Plateau & Eskers - https://assetstore.unity.com/packages/slug/425046Heightmaps - 41 x 16-bit greyscale PNG, 4033 x 4033 px: 41 maps of 10.00 x 10.00 km (about 10 x 10 km, 100 square km) at 2.48 m per pixelRelief - 82 m to 1,756 m per map (lowest point of each map at 0)Unity terrains - one terrain of 4097 samples per map, terrain holes for the exact edgeHeight precision - one height level is about 0.3 cm on the flattest map and about 5.4 cm on the map with the largest height rangeDemo content - 3 map prefabs (one prefab works in every pipeline) + 9 demo scenes (3 per pipeline)Ground textures - Rocky Mountains and Prairie (8 ground layers) + the shared ground layers, 4096 x 4096 albedo, normal and maskWater - 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 HDRPShaders - anti-tiling, world-aligned terrain shaders with side projection on steep faces (triplanar) for Built-in, URP and HDRPEditor tools - Terrain Builder, Project Setup, USA and UK Ground Textures; PDF documentation includedCompatibility - Unity 2022.3 and above; Built-in, URP and HDRP
