Yeah even the new version has a high fail rate. Then when it fails on the next level up you get a block that can not be removed. Taking out the mod hoping to not loose the build.

I made a fork (since this one seems unmaintained) with some QoL polish:
https://steamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3565416454

- You don't need to toggle N N after confirming (Right Click), as it shows the ghost block immediately, and placing a block (Left Click) will hide the opaque preview axis
- Clearer messages that clarify what button to press next (eg. M now says to Right Click to confirm, since the original mod description doesn't mention that critical step!)
- Axis planes are more translucent (closer to Creative's) so they're less obtrusive
- Fixed bug creating glitchy clientside-only blocks if the mirroring fails due to missing inventory items
- Fixed cycling starting with 'None' axis

I suspect a lot of problems were from the unclear controls, or possibly weirdness from the wrong inventory check before placing.

it failure to place most of the time. nice mod when it works, but getting it to work every time is the hard part

Sometime the block places, sometimes it doesn't. Like Popcorn and V7I say; but unlike V7I I do get the block but it isn't consistent. I'll get gaps or misses entirely.

This Mod works, the instructions are not clear. Use M to show the mirror, Right Click to set the mirror. Start Building. Thank me later

this mod is just not working at all.
ill go to place a block, i can see in the mirror in red where it should place but it never dose no matter what i do.

Still quite inconsistent, like it's desynced sometimes and fails to place the other side of the mirror
Like 30% failure rate which is way too high

Still works perfectly on our server! Thanks so much! <3

PLEASE
FIX

I can get the mirror plane to appear, but blocks don't get placed.

This mod works fine for my saves on dedicated and local.
N to Enable/Disable, M to select axis while aiming at the block you want to mirror to, Right mouse to confirm the axis, N twice to reenable to get rid of duplicated colored pane and start building. Mirroring multiblocks will create "ghost" blocks. Relogging gets rid of ghost/no collision blocks.

Anyone know of any updated versions or similar mods that work?

doesn't seem to work anymore at all, can't lock in the planes and it doesn't mirror

wait......has this mod a range how far you can use it?! @math?

mod needs an update. some times it works and some times not

block does not rotate correctly making this mod useless sadly

I would love to use this, but there are a couple of issues, and I guess it is no longer being developed. 1st issue is that you can not lock in more than one plane like you can in creative. And 2nd issue is that it does not correctly mirror armour blocks that needs to use the "mirrored" counterpart of the same block.

i LOVE this mod if you could make a similar one where you can do the line placement thing i would def download it, thanks for making it!

it works just sometimes, and my friend get a bug with Ghost blocks he can´t destroy build or does something antoher when he use it so i have to set on this place a new block and destroy it again to fix it. can you please fix your mod it would be very helpfull :)

This is probably quite a long shot, but how difficult would it be to replicate the creative line or plane build modes in survival? Is this a "port" of the creative mirror tool, or did you have to rebuild it from scratch?

it sort of does sometimes it doesnt work for me either

Does this mod still work? I'm struggling to place the symmetry axis. It just won't accept it :(

(In a platonic fashion)

I love you.

Yes, thank you Math0424 - Works on my modded dedicated multiplayer server!!

Do you think you could implement an option to the projectors to mirror? very useful if you make half a ship and want to project the same on the opposite side. Another feature, in creative mode when copying could be pasted inverted would also nice

Have been personally using this for quite some time now, but i think it is unbearable, normal full blocks work fine, but Multiple blocks don't work, as it says that " they still are not supported", and worse of it all, every time you place a slope or something similar, it either places it on the other side with the wrong orientation, making you do twice as much work, especially in surival, or it simply decides not to place anything; i don't think it's just me having this issues, also i hope they get fixed, cause having to build in creative first is really annoying

yes i had the same problem as the comment below sometime it placed a lot of the time it didn't so i will not be using it until its fixed. great concept but functionally is lacking unfortunately but keep up the work if u are still working on this

This mod fails me.
Sometimes he places the block, sometimes not.
I'm using a large grid and placing 1x1 block.

I do not know what is happening!

Привет! Есть ли мод который может строить в выживании так же быстро как и в творческом режиме?! Я имею ввиду просто каркас для блоков которые потом нужно сварить! Спасибо!

Is there a way to use multiple axes of mirroring at once, instead of just one plane?

Perhaps @Math0424 will make an adjustment to the opacity or give permission to one of us to upload a "low opacity version"

For anyone wanting to change the opacity of the mirror plane... you can edit the MirrorUtils,cs file.

Look for this line (there are three that are similar to one another... each for a mirror plane mode):
Utils.DrawPlane(grid.LocalCordsToWorld(center), m.Up * bb.HalfExtents.Y, m.Forward * bb.HalfExtents.Z, 255, 0, 0, 200);

Changing 200 to a lower number will decrease the opacity. The first three numbers is the RGB value. The last number is the opacity.

A great tool to have for large builds. It goes great along with nanobots Build & Repair system. It's a shame that is not a part of the vanilla in survival.

me too

@CovertJaguar, I second this!

Is there any way we can get the opacity of the mirror plane reduced? It's kind of blinding at the moment. I can't see through it all, it's just an opaque wall.

that is already in game go to admin control panel and turn on creative tools this mod makes it so you can have symmetry w/o creative tools.

Any chance we can get the creative like blockplacement in survival too? I hate building one single block after another :D Your mod made me finally enjoy building in survival but still for large ships i feel forced to switch to creative as i dont want to build 3h for a freaking wall (at least its not 6 now haha) and aligning 20 Projectors to prevent 5000clicks is just a bit less painful

@Zeinath that happened to me as well when i adhs-clicked to place a longer row. The block will disappear when you go out of sync range and back (spectator works well for that).

Super awesome and works! Downside, places 2 blocks for 1 material, grind both blocks to double materials. Makes for some quick material duping...

Is what I originally said, till I started running into issues with blocks not being placed on a proper mirror, and occasionally having blocks placed that can't be removed, not even by an admin... that's pretty problematic.

BEST MOD EVER .

press M to show the mirror angle and click RMB to set mirror in place

Not sure how to use this?

pressing M cycles the mirror angle but does not seem placable (always sticks to the block I am holding)
pressing n says it enables and disables mirror mode

but no matter what i do I cant seem to actually get it to build in mirror mode

doesn't seem to work

revenant, did you find that mod? thats exactly what im after.

seems to work for me dalten. On my dedicated.

also OP, can you update this mod to bring in the drag feature, so I dont have to click a thousand times to put down a floor in survival. Would be nice to drag a row of blocks.

mod seems to have stopped working in 1.199. can anyone else confirm?

@revenant if you found aneything, i would be verry intrested too

does it support full X, Y, and Z symmetry at the same time ? i can only lock on 1 axis