Porcelain veneers are very smooth
Depending on the material, veneers are smooth. If veneers are directly created (no lab used at all), then they are often made out of a composite material. This material, if polished to a high shine, can appear too smooth but feel fine. If they are created to have natural curves, bumps and anatomy, then they may not feel as smooth but look more real. There are many compromises with composite veneers, but many people accept them.