How does simulation-distance (a new 1.18 setting) effects chunk loading distance?



  • Before 1.18 there was a rule for chunk loading distance that said "the chunk loading distance is equal to the view-distance" (you can read this https://minecraft.fandom.com/wiki/Chunk#Ticket_types page at the section "player ticket".

    The same is answered in this https://www.reddit.com/r/Minecraft/comments/8vm897/question_regarding_chunk_loadingrender_distance/ or this Stackoverflow question about https://gaming.stackexchange.com/questions/150329/what-is-the-chunk-update-radius-in-single-player-minecraft?rq=1

    But since 1.18 there is a new config setting called "simulation-distance". I already know that this setting effects in what range entities and liquids will be loaded and calculated, so that is not the question.

    But I wonder if or how this new setting affects the chunk loading distance.

    e.g. if settings are:

    view-distance=5
    simulation-distance=10
    

    What will be the chunk loading distance (will it be 5, 10 or something else)?

    or with

    view-distance=10
    simulation-distance=5
    

    The wiki about https://minecraft.fandom.com/wiki/Server.properties#Java_Edition_3 does yust say [more information needed] for simulation distance.



  • I'm not fully sure on what it does either, but to my knowledge, it loads the chunks in the simulation distance range, but does not load models. This can save a bit of resources if you don't have a (good) GPU. So Mojang basically split the rendering process into two bits:

    • Loading models and visuals (view-distance or render distance)
    • Loading physics and entity movement (simulation-distance)

    Whichever is the highest will determine how many chunks you load, but having simulation distance lower than view-distance while having things outside of that range is very interesting (but ultimately quite useless). Entities will stop moving the moment they cross the simulation-distance border, and water will stop flowing if it flows outside of this border. If you have a lower end PC or laptop without a GPU, make sure to set your view-distance low. However, if you would still like to load things, just set your simulation-distance slightly higher than the view-distance.

    Hope this clears stuff up! Again, this is what I can tell from watching some stuff on YouTube and testing around myself. Maybe this is inaccurate!




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