We have some great photoscanned ground materials in our library and in this video I'll show you how to make the most of them in 3DS Max with Redshift.
Load in a Poliigon material in the usual way, either via the material converter or by bringing in the textures manually. (If you're doing it manually, be sure to load in the displacement map too and connect it to the Redshift shader via a displacement node.)
Add a Redshift Mesh Parameters modifier to the modifier stack.
Adjust the amount of subdivision by raising and lowering the edge length, lower values provide more geometry at the expense of memory/performance.
Adjust the displacement strength via the Displacement Scale and Max Displacement values.
If needed, you can watch our other video, Using Poliigon materials in 3DS Max with Redshift prior to this video.