Let's check out how the Bump map changes the floor's appearance.
The first render which we produced with Bump map multiplier of 30 is good but the surface looks too rough and the space between the individual wood planks is too pronounced. We need to reduce the fine details a little.
In the second render we use a Bump map multiplier of 8. See how the floor is slightly smoother and resembles a wooden surface. The space between the planks is smaller.
