What is the best way to make a huge world like Silent Hunter?

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Hello, I am new to Unity and I am looking for the best way to make a huge world. I am making a ship simulator. My terrain in my game is around ports and coastlines everything inland is unviewable. I just need the coastlines. I am looking to make the Mediterranean sea for start but if possible the whole world like Silent Hunter. I will use an ocean system like playway water so I am good with the sea. Anyway, please help me if you can! Your help will be greatly appreciated!

Also, so I dont start a new thread how much polys should the player’s ship be? Right now I have a high poly ship with interior as well for 2.7 mil polys. I think its too high right? What is the max poly count I should use?

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I think the basic idea is always the same: you divide the world into chunks, and load those chunks as needed. The fact that you need only the coastlines, and not the interiors, saves you a great deal (though it’s still a big task).

Depending on how much accuracy you need, you could also reduce the data requirements by using some procedural generation of the details. Google “procedural terrain generation” to open that particular fire hose.

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