I don't think you can change this for offline usage. The skins tab in the launcher allows you to set your model type (classic (steve) or slim (alex)) but that only applies to online play, it also affects the way your skin will look (sort off).
But to my knowledge this doesn't affect offline play. There you'll basically get a random model assigned and that's it.
Really? They should allow you to pick who you want to play as, that is kind of annoying.
the hosts skin and the steve can be solved with a resource pack i play a modded lan world with my sister and i've made a custom resource pack so i can see her skin and it works quite well if you are on LAN it shouldn't be a big deal to get everyone install the pack
If so, then... it's actually very complicated to try and change the skin appearance. Some people make a resource pack to switch Steve and Alex, but that won't help with what your friends see, unless they install the same resource pack. There's also mods like "OfflineSkins" - but that means all players need Forge and the mod loaded. Even then, there is a further complication - a known bug, MC-52974, means others on a LAN can't see the hosts' skin.
Unfortunately, I don't think there is an answer - and I'm not sure enough people care about it to get the bug fixed, because almost everyone on a LAN has an internet connection.
Sorry, I men't that the way LAN Doesn't show the host's skin.
Well, I guess that you cannot change it, that's annoying. Oh well, hopefully they will patch it. Some day.
How do I do that? There's no executable anymore and the launcher refuses to load the launch game button without first accessing the banner data from the server. It has changed with the new launcher.
but the skin storing sounds good
They just need to give you a client-side copy and a server-side copy, and have the client-side copy update every time you get access to the server. That way you still get the server advantage of being able to have it on multiple clients, and the client advantage of being able to use it while offline.
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I want ocean content(thanks Möjang!), nether biomes, and savanna passive mobs.