What was shown in a previous topic “Grainy view” was an instance of Z-Fighting. When both surfaces are aligned on the Y-axis here and both trying to show at the same time.
Like this for example:
What we see here is both the top of the floor and the top of the tiles being at the same Y (0).
The teacher didn’t have this issue because he set the size of the tile to:
x: 4m | y: 0.1m | 4m
By doing this, the top of a tile will be 0.1 higher on Y than the top of the floor, so no Z-Fighting here.
You could even go for:
x: 4m | y: 0.0001m | 4m to avoid this and have a tile that doesn’t stick as much from the ground. But in our case here it’s not necessary you can just follow along.
So back to 0.1 instead of 0 and this is what we get:
