All language subtitles for 16-MortarGaps

Our bricks and mortar are looking good, and the
basis of the displacement texture is done. Now

it's time to really start cranking up the visual
interest, by adding more and more variation.

Let's create some gaps in the mortar,
as if pieces of it had broken away.

For that, we'll need yet another Noise Texture.

This time, just like with the chipped texture we
made for the bricks, we don't want it to apply

everywhere, but just in some spots. So let's add a
Map Range, to clamp the lower end of the texture.

Let's also compress the range a bit from the
upper end, to create that extra contrast,

and to avoid sharp edges while clamping,
let's set the interpolation to Smooth Step.

Now we can add a Math node at the end of
our mortar chain, and set it to subtract,

just like we did with the
chipped texture. In fact,

this setup is practically identical to the
one we made for the chipped brick texture.

Connecting the Map Range to the subtraction,
we see some gaps appear in the mortar texture.

We can take a moment just to
organize these nodes a bit.

Looking at the output, the gaps
are again hard to see in Eevee,

as it doesn't really display differences in depth.

Though we do at least see how it affects
the shading, if we crank up the depth.

Switching to Cycles is when we
really see the effect properly.

The gaps that we made go much deeper, and the
shadows cast by the bricks really emphasize them.

Now, the higher we set the lower bound of
the range, the fewer gaps there will be,

as we are taking just the
very top part of the texture.

If we go very low, almost our entire mortar
disappears, and that wall probably wouldn't

even stand at all. So let's go
back to some intermediate range.

Basically, the size of the noise
determines the frequency of the gaps,

while the range determines how much
coverage they have on the wall.