RedLua crashes right after the loading screens in RDR2 / also doesn't load lua script - gives errors

[Krokx]

Hi I tried to install this mod: https://www.nexusmods.com/reddeadredemption2/mods/6602
which requires your RedLua, but after installing it, after the loading screens RDR2 crashes.
I managed to take a photo with my phone of the RedLua windows (which disappears after 3-4 seconds) with the errors:
ERROR [default] lua_State (000001C9D2A30380) error: .\RedLua\Scripts\benedict_scene.lua attempt to call global 'vector3' (a nil value)
I tried this with other .lua scripts with the same result. Also tried to change 'vectors3' to 'vec3' with the same result.
Any idea why it crashes and doesn't load the .lua scripts?

[Krokx]

Ok, I got the RedLua to work. I had to change int the graphics section to windowed mode instaed of fullscreen and now the debug console doesnt crash RDR2 anymore. But I'got some error showing when trying to load the .lua scripts.

2026-01-14 11:25:59,790 INFO [default] Logger initialized
2026-01-14 11:25:59,790 DEBUG [default] RedLua menu initialized
2026-01-14 11:25:59,990 INFO [default] Searching for lng files...
2026-01-14 11:25:59,991 INFO [default] Searching for new scripts...
2026-01-14 11:25:59,992 ERROR [default] lua_State(0000023EC2670380) error: .\RedLua\Scripts\benedict_music.lua:2: attempt to call global 'vector3' (a nil value)
2026-01-14 11:25:59,992 ERROR [default] lua_State(0000023EC2690380) error: .\RedLua\Scripts\benedict_scene.lua:2: attempt to call global 'vector3' (a nil value)

Also is it possible to start the game without the debug console showing on top? Can it start hidden and be called with a button?

[igor725]

That's actually weird, RedLua supposed to work in fullscreen too. I will check it later. On top of that, seems like the script in question was built not for my API in RedLua. I don't have vector3 function or any initializer like this. Maybe author of this script forgot to drop utility script they used to wrap my calls. Also it uses wrong load event - OnInit instead of OnLoad. Author could aswell put RedLua in dependencies by accident, confusing it with some other mod, I don't know.

[igor725]

In my library vector creation happens through native library - native.new('Vector3'), not through vector3() call. This mod seem to be built for CitizenMP (or some clone of it), I never used it so I can't say how to install it.

[Krokx]

Do you have somewhere the whole library, how to use with RedLua? I'm experimenting myself with coding right now for RedLua, but I'm a little bit lost. Or mayby you do have some example scripts, with spawning peds, making them travel and so on. I'm trying to do a simple ferry script Saint Denis - Blackwater - Saint Denis, where I need to spawn a steamboat, a captain and make a prompt at the captain to travel. Preferably not only teleport, but also a cutscene for the travel and payment of let's say 10 USD.

[igor725]

Actually there's no documentation on how to do in-game stuff anywhere. This is a private part of Rockstar, the only known stuff is the one that was reversed by enthusiasts. RedLua uses alloc8or's NativeDB - https://alloc8or.re/rdr3/nativedb/. You can see all ingame functions there. Some of these functions were named by community, some of them don't. If you see function names like _0x51548FED5959.... and so on - this means the function has no name in NativeDB and highly likely nobody knows how this function works, you have to test it yourself or disassemble game's code and see what this function actually does.
Here's example how function declaration in this NativeDB looks like:

Let's say you want to call this exact function using RedLua, this means you have to write in your script either AUDIO:CLEAR_CONVERSATION_HISTORY() or native.call('AUDIO', 'CLEAR_CONVERSATION_HISTORY'). This will call this game's function.

[igor725]

If we take your script in question, the one you tried to make working with RedLua, it has a lot of native calls wrapped into neatly named functions, probably the work of CitizenMP API. But it does have some pure native calls: blip = N_0x554d9d53f696d002(1664425300, pokerBlipCoords) like here for example. If you search for this function by its hash in NativeDB, then you will find it in this format:

So basically to "translate" this Citizen API function blip = N_0x554d9d53f696d002(1664425300, pokerBlipCoords) call into a RedLua call, you have to do MAP:BLIP_ADD_FOR_COORDS(1664425300, pokerBlipCoords), the important part is that pokerBlipCoords vector should be created before making this call.

[igor725]

Here's another example

This script has this line: local player = PlayerPedId(), to make this call in RedLua you should do it this way: local player = PLAYER:PLAYER_PED_ID(). Basically the whole script translation process is about searching natives and probably looking into Citizen documentation, pretty sure they have native function hashes specified in their docs.

I'm not familiar with Citizen API so translating this code into RedLua compatible code could be rather difficult, I just can show you some examples, like the ones above.

[igor725]

Also I just tested and I don't think I have any bugs in fullscreen mode with my RedLua. Most likely you just got confused, the mod works correctly no matter what the rendering mode is.

[Krokx]

Ok, I will try to figure this out somehow. Thank you for your help.

[igor725]

Your welcome!