A cheat for seamless hex tiles
In some cases you can get away with letting the engine do some of the work.
Here is the strategy:
[dropcap style=”dark”]1[/dropcap]Take the texture you want to use for the tile. This texture need not be seamless.
[dropcap style=”dark”]2[/dropcap]Apply a hex mask such as the following to the texture:
This will give you tiles that look like this:
[dropcap style=”dark”]3[/dropcap]In your game, let the tiles overlap slightly.
Here is how this looks for the three tiles above:
In the images above, I rotated the tiles randomly so that repetitive patterns are less obvious.
You can color your tiles procedurally to add a bit of depth:
The tiles can also be used in the same image:
You can combine the two effects as well:
The problem with adjusting tile colors or using different tiles is that the resulting shapes are irregular, but not irregular enough that you can get away with it.
One way to get around this problem is to make your mask have jagged edges, so that the the overall shapes are irregular enough not to be displeasing.
This technique works well when there are regions of identical tiles. If we adjust the colours as before, this technique is not so effective.