I seen a server do this and i was wondering if it could be done forge side as well what i am wondering is if there is a way to get a block e.g. fern and set it to not be visible if option is selected but it to be dynamic meaning it can be done without having to restart world/client

It’s very possible, what exactly are you trying to do?

24 minutes ago, Cadiboo said:

It’s very possible, what exactly are you trying to do?

For me it is i am just simple building a mod that will hold a bunch of testing stuff to reference back to if i ever need a function and one things i was thinking of was what if i want to make a item that can only be visible if a certain condition is met e.g. if players inventory contains a special lens or something

I would do it by wrapping the model of the block with your own that checks if the block is visible. This will only take effect whenever the chunk is rebuild i.e. a BlockState inside that chunk is changed or a re-render is called, however you can force re-renders.

3 minutes ago, Cadiboo said:

I would do it by wrapping the model of the block with your own that checks if the block is visible. This will only take effect whenever the chunk is rebuild i.e. a BlockState inside that chunk is changed or a re-render is called, however you can force re-renders.

interesting what would the best way to check if a block is visable and then update/rebuild the chunk?

 

if(!ModConfig.getInvisibleBlockStates().contains(state))

 

and whenever the player puts on/takes off the goggles call world#notifyBlockUpdate (I think) on the chunk you want rebuilt

or RenderGlobal#loadRenderers to rebuild all chunks