For Moss to be rendered with the best possible quality, refer to these settings https://drive.google.com/file/d/1V_L8bAoOefzpf-PZiud-km1rg7yicgwY/view 

decorative_set_87(by.shayan.sharify)
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Version:3Ds Max 2015
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Dimension: 157.91 x 79.15 x 93.99
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Polys: 626251
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Formats:vray+corona+obj
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The models have a turbosmooth modifier.
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Other Models:
https://3dsky.org/users/shayan_sharify_76