that's cool, the material helps it's realism.

In Blender assign a subsurf modifier + displace modifier with UV mapped displacement texture, and there you have it. You don't have to bake displacement into the model, because the Octane exporter will apply viewport (not render) modifiers on export.

I can play crysis, SC², Bioshock, portal, TRA, during many hours without a single crash...
Also with the game Mirror Edge we can turn on PhysX, and when i do that, my PC crash very fast, and i have to press 5s the power switch... When i disable this, it's ok.