Lake Mead & Mojave Desert Real-World Terrains 406 km²
Matei Ioan Alexandru
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30 real-world maps of Lake Mead, the Moapa Valley and the Virgin Mountains, 20 x 20 km (406 km²) each at 10 m. 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/NVtl8ZIP7sILake Mead and the Mojave Desert - the Overton Arm and the open basins of Lake Mead, the Moapa Valley and the Muddy and Virgin Mountains - at their real size, 20 x 20 km per map30 maps of Lake Mead and the Mojave Desert from real-world elevation data (DEM). Desert ranges of grey limestone and red sandstone, wide fans and pale badlands around the Moapa Valley, the Muddy and Virgin Mountains, and the bays and arms of Lake Mead - with up to 2,043 m of relief on a single map. Each map covers 20.16 x 20.16 km (about 20 x 20 km, 406 square km) at 10 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 INSIDE30 heightmaps - 16-bit PNG, 2017 x 2017 px, relief from 379 m to 2,043 m per mapOne Unity terrain per map - one terrain of 2049 samples per map; the unused 32-sample edge strip is cut away with terrain holes3 demo levels x 3 render pipelines - 9 ready scenes to fly or walk through: Lake Mead Basin, Overton Arm, Virgin MountainsTerrain Builder - one click turns any heightmap into a real-scale Unity terrainMojave and Lake Mead ground look - 8 ground layers in 4K: meadow, forest floor, dry earth, scree, rock, gravel, red rock, lake bedLake Mead water - transparent dark blue-green lake coloured by its real depth, uneven sandy shores, wet ground at the waterline and a pale mineral band on the rock above today's water level, in Built-in, URP and HDRPDry season in the Mojave - the ground of the demo levels is painted from the real shape of each map: bedded limestone ranges, red sandstone, desert pavement and creosote on the fans, pale badlands and the pale band above Lake Mead✦ DESERT GROUNDTilted limestone beds - the desert ranges show bedded grey limestone whose beds cut across the slopes like real fault blocks, with ledges that catch the lightColour carried by the drainage - the ground below a wall takes the colour of the rock above it, carried down the map's real drainageWashes and shore sand - washes where the map's real drainage gathers, sandy shores placed from the real level of Lake MeadShrubs in the shader - separate creosote and bursage shrubs, small and far apart, drawn by the terrain shader on the painted groundFine surface relief - lumps and hollows finer than the height data on the near ground, fading out with distance✦ FEATURESHuge real-world maps - up to 20 x 20 km of real ground per map, at 10 m between samples: fault-block ranges, fans, badlands, washes, valley floors and the shoreline of Lake Mead 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 100-134 FPS · URP 104-202 FPS · Built-in 173-430 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 · western, survival and exploration games · cinematics · terrain studies. The heightmaps also work in other tools: 16-bit PNG, north up, size and height range in the file name.✦ THE GRAND CANYON SERIESNeighbouring ground, never the same map twice:Grand Canyon Rims & Plateaus - https://assetstore.unity.com/packages/slug/426850Grand Canyon Inner Canyons - https://assetstore.unity.com/packages/slug/426854Grand Canyon-Parashant - https://assetstore.unity.com/packages/slug/426856✦ MORE REAL-WORLD TERRAINSSame format, same tools:USA Sierra Nevada & Cascades - https://assetstore.unity.com/packages/slug/426148USA Rocky Mountains & Great Plains - https://assetstore.unity.com/packages/slug/426150USA California & Desert Southwest - https://assetstore.unity.com/packages/slug/426152USA Eastern Forests & Lakes - https://assetstore.unity.com/packages/slug/426154UK Fells, Moors & Dales - https://assetstore.unity.com/packages/slug/426156Alaska 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/425670Heightmaps - 30 x 16-bit greyscale PNG, 2017 x 2017 px: 30 maps of 20.16 x 20.16 km (about 20 x 20 km, 406 square km) at 10 m per pixelRelief - 379 m to 2,043 m per map (lowest point of each map at 0)Unity terrains - one terrain of 2049 samples per map, terrain holes for the exact edgeHeight precision - one height level is about 1.2 cm on the flattest map and about 6.2 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 - Mojave and Lake Mead (8 ground layers) + the shared ground layers, 4096 x 4096 albedo, normal and maskRock beds - a bed table per demo map, read by the terrain shader in Built-in, URP and HDRPWater - transparent river and lake surfaces whose colour comes from the real water depth (depth texture), soft uneven shorelines, travelling waves and river flow, for Built-in, URP and HDRPShaders - anti-tiling, world-aligned terrain shaders with side projection on steep faces, rock beds, shrubs and fine relief, for Built-in, URP and HDRPEditor tools - Terrain Builder, Project Setup, Grand Canyon Ground Textures; PDF documentation includedCompatibility - Unity 2022.3 and above; Built-in, URP and HDRP


