3DTechDesign
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This mobile stairs have a height of 2 meter and the upper plattform has 3*3 meter.
You will get two texture sets.The first is made for Unreal Engine 4 ans hast BaseColor, Roughness, Metallic and NormamapThe second is made for Unity and has Albedo, AO, MetallicSmoothness and Normalmap
Both sets are 4096*4096 pixel, so you can reduce them as you like.