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This is a paid asset, but now you can download Rocky Hills Terrain Pack Free.
Rocky Hills Terrain Pack
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Rocky Hills Terrain Pack is a package of 10 terrain meshes for use in your Unity projects. Low poly (2000 triangles) versions also included.
NEW v1.5: Better support for Unity Terrains with custom splat maps and textures. Make a better looking FPS!
Features:
– 10 ground meshes 100mx100m in size.
– 10 16bit splatmaps to apply to your Unity Terrains for accurate texture distribution.
– 2048×2048 diffuse and normal maps; a set for each mesh.
– 16bit greyscale RAW maps for Unity Terrains
– Daylight skybox. Each side is 2048×2048.
– Looks great on mobile!
Note: Clouds shown in some screenshots are from 3D Cloud Models package.