I'm making a top-down style game in Unity 5 (2D). The floor is made up of many tiles (which are each game objects) of different types, eg sand and dirt.

I want to render a single texture over all of a single type of tile. So if I had a large area of sand, a single texture would be displayed for all of it. However, if there was a small area of dirt within that sand, that would need its own texture as well. These areas wouldn't necessarily be square either.

I've seen this used in games such as RimWorld, but I have no idea how to accomplish it. Any ideas?

Edit: Added picture of what I am attempting. This is a screenshot from RimWorld. As you can see, the sand is made up of hundreds of tiles, but has only one texture over it.

I'm making a top-down style game in Unity 5 (2D). The floor is made up of many tiles (which are each game objects) of different types, eg sand and dirt.

I want to render a single texture over all of a single type of tile. So if I had a large area of sand, a single texture would be displayed for all of it. However, if there was a small area of dirt within that sand, that would need its own texture as well. These areas wouldn't necessarily be square either.

I've seen this used in games such as RimWorld, but I have no idea how to accomplish it. Any ideas?

Edit: Added picture of what I am attempting. This is a screenshot from RimWorld. As you can see, the sand is made up of hundreds of tiles, but has only one texture over it.

This is all I have managed so far:

I'm making a top-down style game in Unity 5 (2D). The floor is made up of many tiles (which are each game objects) of different types, eg sand and dirt.

I want to render a single texture over all of a single type of tile. So if I had a large area of sand, a single texture would be displayed for all of it. However, if there was a small area of dirt within that sand, that would need its own texture as well. These areas wouldn't necessarily be square either.

I've seen this used in games such as RimWorld, but I have no idea how to accomplish it. Any ideas?

I'm making a top-down style game in Unity 5 (2D). The floor is made up of many tiles (which are each game objects) of different types, eg sand and dirt.

I want to render a single texture over all of a single type of tile. So if I had a large area of sand, a single texture would be displayed for all of it. However, if there was a small area of dirt within that sand, that would need its own texture as well. These areas wouldn't necessarily be square either.

I've seen this used in games such as RimWorld, but I have no idea how to accomplish it. Any ideas?

Edit: Added picture of what I am attempting. This is a screenshot from RimWorld. As you can see, the sand is made up of hundreds of tiles, but has only one texture over it.