Floor surfaces are not entirely smooth, they have some bumps. To simulate tiny bumps, we can use a VRayHDRI texture and link it to the Bump map slot of the VRayMtl. Note that the bump map is just a shading effect and does not change the original geometry, only the way it looks. In the Color space rollout, set the type to None. The Bump map we are using is black-and-white and does not need color correction. In the Maps rollout of the VRayMtl, reduce the Bump value to 8. When map tiling was not specified with a UVW Map modifier but in the Coordinates rollout of the diffuse map, then copy these tiling values to the bump map as well. |
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