udon-general

[grand temple]

yes

[jaunty dagger]

ERROR: [UdonBehaviour] An exception occured during Udon execution, this UdonBehaviour will be halted

Quite useless error message.

[grand temple]

hold tab and then click expand top left

[jaunty dagger]

Its already expanded

doesn't tell me anything else but that message

[grand temple]

it should show more details if it's expanded

[jaunty dagger]

let me try again

[grand temple]

you can also just go to the file where it's never collapsed

[jaunty dagger]

Possibly that's the error:

2022.01.07 20:49:31 Error - [UdonBehaviour] An exception occurred during Udon execution, this UdonBehaviour will be halted.
VRC.Udon.VM.UdonVMException: The VM encountered an error!
Exception Message:
An exception occurred during EXTERN to 'VRCSDKBaseVRCPlayerApi.__GetTrackingData__VRCSDKBaseVRCPlayerApiTrackingDataType__VRCSDKBaseVRCPlayerApiTrackingData'.
Parameter Addresses: 0x00000009, 0x0000000A, 0x00000008

Object reference not set to an instance of an object.

Not sure, as the log is a mess

But I do nothing with TrackingData here, so might because I am not using a VR headset

[grand temple]

that's probably a different udonbehaviour

are you sure this udonbehaviour is crashing when you click interact?

[jaunty dagger]

Yep.
Because the script is a simple Light button toggling room lights and changing the lamps material from a material with emission (turned on) to the same material without emission (turned off).

And what actually happens in game is, that only the first light gets disabled, but when it comes to the first MeshRenderers material, thats where it breaks

[grand temple]

then find the part in the log where this udonbehaviour is crashing

[jaunty dagger]

When I cut off the material part from the flow, the lights successfully turn on and off

2022.01.07 20:49:27 Error - [UdonBehaviour] An exception occurred during Udon execution, this UdonBehaviour will be halted.
VRC.Udon.VM.UdonVMException: The VM encountered an error!
Exception Message:
An exception occurred during EXTERN to 'UnityEngineMeshRenderer.__set_material__UnityEngineMaterial__SystemVoid'.
Parameter Addresses: 0x00000009, 0x0000000C

Object reference not set to an instance of an object.

This one I guess

[grand temple]

yeah that would do it

[jaunty dagger]

I am using one FOR loop for both, lights and MeshRenderers

[grand temple]

so are you sure every single mesh renderer is valid in that array?

[jaunty dagger]

Because every light has exactly one meshRenderer

Should be, I just dragged them in one by one again to be sure

[grand temple]

could you take a picture of the inspector with the lights and meshrenderers?

[jaunty dagger]

I will, one moment.

I just saw that somehow the array length chaned in the editor. 2x light, 1x meshRenderer. That would explain the error. Let me quickly double check and test again

[grand temple]

if you want to harden it against that kind of thing, you could add an isvalid check on everything

you could also use mathf.min on two array lengths so even if they're not the same lengths it'll stop on whichever one is shorter

[jaunty dagger]

Good idea! thank you 🙂

I just saw that somehow all MeshRenderers got reset. Not sure what kind of change did this, but I definitely need to be more careful in double checking these things when errors occure.
I guess now it will work once compiling is finished. Again thank you for your help! Definitely learned how to more efficiently Debug in Udon thanks to you

Still same problem. Could it be a problem that I attached a VRCObjectSync to all light objects? Would it be better to attach it to the light switch and will this have the same effect? (All players having the lights turned on or off if somebody uses the switch)

[grand temple]

objectsync doesn't have anything to do with this

it does not sync whether or not an object is enabled

all it does is sync the position

if you want this synced you should have a synced bool

but that's still not your problem if it's crashing

[jaunty dagger]

Oh okay

Yeah, still same error, despite having added all MeshRenderers and Lights. I will try it now with removing all VRCObjectSyncs from Lights, LampMeshes and Light Switches, just to make sure they don't interfer

Is there a difference between GetLength() and get Length() ?

[grand temple]

I don't think so

are you sure the meshes aren't getting deleted by something?

[jaunty dagger]

Shouldnt happen, nothing else is accessing them

I will try a different approach

I will try to create two for loops, one for the lights and one for the meshes

[grand temple]

that's not the problem

if it was, you would get an index out of bounds exception

just add isvalid before doing anything with the meshes

[jaunty dagger]

Okay, then I'll try that

Thank you, the isValid did the trick and addresses all MeshRenderers. Still wondering as to why it doesn't run through the loop without it.

[grand temple]

because somehow, one of your meshrenderers is invalid

[jaunty dagger]

Hm, I will check them one by one and see if I find the reason.
Other question: You mentioned to sync the lights between players, I need to sync the boolean

So I added a boolean to the Udon Graph which has sync checked and once the boolean gets set to true/false, there is also a check in "sendChanges"

Do I also need to add a VRCObjectSync to the light or the lamp mesh (parent of the light) ?
It seems not to sync between my two instances.

Ah nevermind, it gets synced, but on my PC only shows the changes once I change to the other instance.

Oh, no it doesn't sync. I got confused. Seems the light toggle only works locally

[grand temple]

you need to hook up the boolean so it actually applies the changes you want. It's not automatic

[jaunty dagger]

Should I maybe better create a RequestSerialization of the light[] and meshRenderer[] ?

I know, I hooked it up

[grand temple]

the basic flow is that on interact you would setowner (localplayer), set the bool to it's inverse, then requestserialization.

Then onvariablechanged of the bool, you would set the lights to the state of the bool

[jaunty dagger]

aaah okay

thank you! I will try that

Where do I find the "onVariableChanged" ?

It's an event?

[grand temple]

hold alt while dragging a variable into the graph

[jaunty dagger]

ooooh okay!

by setOwner you mean the owner of the light switch or of each light and meshRenderer?

[grand temple]

the owner of the object with the udonbehaviour

the lights don't matter

[jaunty dagger]

okay

[scarlet lake]

Do you have to call playerapi methods on the client that is said playerapi?

[jaunty dagger]

What is the input of the RequestSerialization? The current UdonBehaviour I am in?

[scarlet lake]

Do they have ownership of their own playerapi?

[jaunty dagger]

Yep, I call it in some other udon behaviour

[scarlet lake]

yes, but the self ref is implied

you dont need to add it

[jaunty dagger]

So I don't need to feed it any input?

[scarlet lake]

nope

same as when you call an event

[grand temple]

depends, some of them yes, like teleport

[scarlet lake]

yeah i was getting errors yesterday when I tried to run immobilize on all clients from my game master

I think teleport failed silently

but good to know

Are player APIs owned by their corresponding player then?

[jaunty dagger]

Should be

At least that's what I was expecting from the PlayerAPI

[scarlet lake]

Can't malicious players call functions like teleport manually then?

[jaunty dagger]

How would they go about it? You mean when the necessary mechanic is built into the world?

[scarlet lake]

Well if they call the teleport function and they have authority (as they're the owner of the object)

there'd be nothing saying "no you can't" right?

[jaunty dagger]

Hm true, but how would you call the function from within Unity Client?

Via usable item?

[scarlet lake]

I'm not sure as I don't really know a lot about cheating (other than what to generally do to prevent it in networking)

But if they could make their own method calls through some client they make they could just make it execute a teleport function

[jaunty dagger]

I guess one could write a gun script that on first click stores the raycast hit its pointing at and on second click teleports there

[scarlet lake]

I'm mostly asking because I'm not really sure how to make my game safe from cheaters

I suppose its always impossible to prevent the current gamemaster from cheating

[jaunty dagger]

I think generally speaking, VRChat is not yet at a point where its cheat-safe. When you allow users to create content, you are literally opening the door for cheaters, with so many APIs exposed.

Btw, my script works now, Thanks Phasedragon!

[scarlet lake]

true 😄 I suppose I can just let it go for now and worry about it if cheaters become an actual issue

[jaunty dagger]

I mean, basically VRChat is a huge sanbox with no consequences gameplay-wise. To me it feels semi-immersive. I play a game but I don't really fear any consequences of getting hit, losing or whatever, as I can just leave the world at any time and things usually don't really collide with the player.

My world is trying to change that a bit. I made little robots the player sits on and drives around with to player soccer. When the ball hits another players robot really hart, the robot topples which also topples the players view and will feel quite uncomfortable, being thrown around in the world like this.
I will make a list of how many beta testers puke 😄

[scarlet lake]

Haha, yeah I think that'll create a lot of motion sickness.

[jaunty dagger]

Lets hope so 😄 People should be SCARED of getting hit 😄

Optionally I will implement a top down third person camera that is not affected by the toppling and see what people prefer.

Guess I know the answer to that already haha

Btw, when I want to teleport Objects, do I set the Owner of the transform or the gameObject itself?

I mean before teleporting

[scarlet lake]

set the owner to what?

[jaunty dagger]

localPlayer

[scarlet lake]

depends on what its for

[jaunty dagger]

I have a lot of physics clutter in my map and a button that reserts everything to its starting position

[scarlet lake]

you'd still want to sync it to the rest somehow

unless its like

physics clutter that doesnt have to sync

[jaunty dagger]

Each object has a VRCObjectSync attached to it

[scarlet lake]

then you dont need to set the owner

[jaunty dagger]

No, the clutter shall be synced

But if another player messes with the clutter like holds it in hands, the other player pushing the reset button won't be able to reset its position

[scarlet lake]

someone should correct me if im wrong because this is from a UE4 dev perspective, but generally you'd send a network event to the owner thats like

OnClientRequestReset

when the button is pressed

[jaunty dagger]

Not sure if it works the same way in Udon.
Afaik you add a VRCObjectSync to every object you want to sync between players.
To make them Physical objects, you add a VRCPickup which also gives them a Rigidbody.

Per se, these objects are already synced between players, but if by using a button, you try to ´set the position of the object, I believe you have to set the position locally and then make sure the one who clicked the button becomes the owner of all objects before teleporting them as well.

[scarlet lake]

I think it would work the way I described

what you're saying is basically saying "make the player pressing the button the owner, so his changes sync"

[jaunty dagger]

I didnt find a "OnClientRequestReset"

[scarlet lake]

what im saying is "make the player that pressed the button run an event on the owner of the object, which will sync automatically becaue its the owner"

wait

1 sec I'll show you what I mean

You'd have to make an event like that

[jaunty dagger]

Okay 🙂

[scarlet lake]

custom event with a name like that

Basically, the button and the clutter is owned by the first player that joined and they have authority over them so their changes are the ones that get synced to others

so its easiest to just have the owner run the code that resets it all

[jaunty dagger]

Thats how the reset script looks right now

[scarlet lake]

ok im launching my project now and ill make some psuedo code

[jaunty dagger]

But owner changes when somebody else takes the clutter in hand

so after 5 mins playtime, half the clutter is owned by different players that were last fiddling around with it

[scarlet lake]

ahh

[jaunty dagger]

Clutter has the flag of changeOwnerOnCollision

This is why I was planning on just resetting ownership to the one who pressed the clean up button

It cleans up right now, but only if the person is already the owner of the clutter. Not sure why it doesn't Set the owenership

[scarlet lake]

in that case you could do either that or make it so the current gamemaster gets the ownership

[jaunty dagger]

I didnt touch the game master thing yet, otherwise I increase the amount of possible human errors when messing with that as well for the first time here xD

[scarlet lake]

the set ownership doesn't work because

probably

only the owner can set the ownership to someone else

let me double check that though

[jaunty dagger]

Okay, thank you!

[scarlet lake]

dont quote me on it though it's just an assumption

nvm im wrong

I'm not sure why its not working then

[jaunty dagger]

Hmmm, weird

[scarlet lake]

actually

im not sure its worded kinda weird

[jaunty dagger]

I have to read the ownership from the gO, not the transform right?

[scarlet lake]

I'm assuming the last bit is talking about the caller

i'd assume so yes

as its the gameobject that has ownership

[jaunty dagger]

Hmm weird, as I am doing exactly that

Checking if the current player is the owner and if not, giving him sovereignity over the object

[scarlet lake]

no errors?

[jaunty dagger]

lemme check

Ill quickly start two instances and check the logs

[scarlet lake]

kk

[jaunty dagger]

seems it successfully changes ownership

but fails at teleport.

Damn I have to run, friend is waiting. Thank you for your help mate! Highly appreciated!

[scarlet lake]

No worries 😄 I hope u can figure it out

@jaunty dagger there's a literal respawn function btw if you're looking for respawning the clutter

probably wont fix your issue

[jaunty dagger]

Ah perfect

[scarlet lake]

but might be useful for your case

[jaunty dagger]

thats what I would need

Friend is waiting to join but I fail compiling the map xD

Getting a weird error in the upload screen of Udon

[scarlet lake]

whats the error?

[jaunty dagger]

I updated Udon SDK today, could that be the reason?

Aaaaand i get kicked out from my account in unity every time after compiling and failing to upload

Deleted my old builöds from the map and trying again now. HOpe this worked

[scarlet lake]

hmm no clue sorry

[jaunty dagger]

Np.

Maybe its the VRCWorld object. will try to delete that and recreate

This kind of crap always happens when you try to show your world to someone xD

Does anyone know where to find the damn VRC_PipelineManager?

Figured it out

[scarlet lake]

Can you save data in a world on a specific player? Like having a database basically

So you can have savegames etc

[fiery yoke]

It was proposed in a dev stream. But no currently you cannot.
There is a project a friend of mine was/is working on, that allows this in a hacky way.

[scarlet lake]

Cool, well I'll probably wait for the official support, I'm not in a rush 😄

[jaunty dagger]

Hey guys, was wondering if there is a tutorial out there for how to stream videos via the VRC api as in the world Movie & Chill

And also if anyone knows a better way of handling physics and collision via the network than Udons built-in methods and classes.
I need something more accurate and precise for a soccer game I am working on.

[lament pike]

No idea about pre built movies etc like moivie and chill but there is one i know of for url inputs from yt

but i dont think that is what you are looking for, sorry if i couldnt help

[jaunty dagger]

Ah a nice person from this channel just sent me the link 🙂

I think it's the same player as in Movies & Chill

[lament pike]

ooo

glad you managed to get it!

A very dumb question but how should I go about making a audio slider for 1 audio source? the tutorial I am using has 2 and inserted a forloop but I don't know if I just remove it and continue everything else or if there is a completely different structure to it altogether

Here is an image of how the tutorials one looks:

[fierce verge]

After updating to 2019 (I put it off for quite awhile) all my programm sources are empty. How do I fix this?

I have backups btw

[fickle stirrup]

make a public variable for AudioSource, you can remove forloop, get length, get audio source. connect custom event directly to set volume, keep value as it is and connect public variable of audio source (not an array) to instance in set volume

[lament pike]

Thank you! I will try my best!!!

[topaz jetty]

you don't even have to use udon for this, you can just create a slider in your UI, and in the OnValueChanged event thingy just add the audio source and put volume as the property to edit

[grand temple]

Step 2.5 in this document is specifically about preventing that from happening https://docs.vrchat.com/docs/migrating-from-2018-lts-to-2019-lts

[lament pike]

Thank you too! I will try and do both and see which is easier

[fierce verge]

but the thing is

I did that xD

[grand temple]

then try it again

[fickle stirrup]

with event one on slider, would be perofrmanter than udon

[fierce verge]

I will, thanks anyway

[grand temple]

you could also try right click > reimport on your scene file

but only if you haven't saved it since migrating

sometimes that data is locked away and just needs to be refreshed enough to pull it out. But as soon as you save, you've lost it forever

[fierce verge]

I backup the 2018 version before updating or touching anything so should be no problem

[grand temple]

👍

[lament pike]

sorry to bother you again but just to double check, is this ok or are there any mistakes?

[fierce verge]

Did it again and this time it worked, idk what I messed up but thanks!

[grand temple]

probably wasn't you messing anything up, it's just that unity misses things sometimes

[fierce verge]

could be me could be unity, it is fixed so thank you!

[fickle stirrup]

yes, does it work as expected?

[lament pike]

I have not checked yet but now im happy it looks ok 😄

[indigo finch]

Is there a way to get a player's Id from a raycast? Do I instead need to create an object associated to the player, that the raycast then hits?

[fiery yoke]

yes, the latter. Because VRChat didnt think or care about raycast-player interactions

[indigo finch]

ah, gotcha. Thanks ^^

[lament pike]

what are common reasons buttons may not work?

I think i have my udon correct but are there any small details you would recommend double checking before seeking full advice

[indigo finch]

you didn't put a collider on them, you didn't give it an interaction. if its a ui button, you didn't put a ui shape on the canvus or you didn't call the event when clicked

[grand temple]

are you talking about UI buttons or udon interact?

[lament pike]

i put a collider on all (mesh collider with convex and IsTrigger on) I think i have the interaction down, I added a ui shape on the canvas and every button (not sure if i needed to add to every button) im not sure about calling the event when clicked refers to, that may be the one but im unsure

[grand temple]

here, check out some of the steps in this doc https://docs.vrchat.com/docs/vrc_uishape

[lament pike]

uuuuuh, i dont know how to answer so ima say both?

thank you!

[grand temple]

you do not need a uishape on every button

not sure if mesh collider works, that could probably break it

[lament pike]

Gonna Switch to box collider to set it out then!

[lament pike]

well the buttons work fine but they just dont do their respective duty. EG) play/pause can be pressed but doesnt pause. I think i have tried everything recommended thus far from people and the link so is it safe to assume it may be an udon related issue?

If sending ss of udon graphs can help identify the issue i am more than happy to

[grand temple]

you could check your log and see if something is crashing

[lament pike]

its empty which is the sadge part 😦

[grand temple]

pics of the button and the event that is supposed to be called would help

[lament pike]

will do, gimme a min ^^

Ima do just 1 button aka play/pause

I was working from Vowgan's tutorial

[topaz jetty]

You put Play/Pause in the event in your button but the event name is PlayPause in your code

[fading cipher]

Does VRC support Vector Graphics? (SVGs)

We can always convert them to SDFs if needed but I wonder if they're just inherently supported?

[mossy crane]

Is there a way to make a player look at something? via a PlayerTriggerEnter lookat(thing). or rotate to face said thing

Or can I grab the quaternion of a player holding a pickup?

nvm

[craggy harbor]

🤔 Everytime I create an U# script it says this... I guess there's no solution for this.

[scarlet lake]

im getting lag in my map and used the profiler to see what was going on. Does anyone understand where the lag is coming from here?

[solar glen]

I need help. I want to make a video world. Does vrchat not support splicing URL strings?

[indigo finch]

unfortunately no, and exploiting work arounds to do so goes against TOC. that being said, you can have set urls in your scene, with say a button that plays one of those url

[solar glen]

thank you..

[bleak echo]

is there a way to change the interaction text on a gameobject via udon sharp?

[lament pike]

Thank you, that was the issue, it works perfectly now

[gray fjord]

Can you get udon on chromebook?

[lament pike]

i dont think it should be impossible but dont take my word for it

[topaz jetty]

it might work if it's one of those newer x86 chromebooks that supports linux apps, and then using the linux version of unity, but that version isn't officially supported by VRChat and the majority of chromebooks are ARM anyways

[lament pike]

Not sure why but link loading doesnt work, i believe the url input field works fine, here is the event and button settings

[grand temple]

you have a box collider on the button?

[lament pike]

yes

[grand temple]

that's a bit unconventional

are you sure this is a problem with the video player, or is it a problem with the button?

[lament pike]

in the tutorial they have event custom and send custom event switched, i dont know if it makes a difference

uuuuuuuh

i would guess the button for loading the link as i can enter the url in without a problem

here is the settings of the url input field

if it helps

[grand temple]

is the button sending to the correct udonbehaviour?

[lament pike]

maybe? how would you go about checking it (sorry I'm not good with this)?

are you referring to this?

[grand temple]

if that's "TV+Player" then yes

does the udon graph from that have a LoadURL event?

[lament pike]

it is!

[lament pike]

yes, there is only 1 udon graph so far, it has the slider volume, play/pause and that url event i showed earlier

[grand temple]

and if you click the button, does that cause the input field to stop working?

[lament pike]

The load button?

[grand temple]

yes

[lament pike]

essentially yes, the link stays in the input field but doesnt get loaded onto the tv

[grand temple]

that's not what I'm asking

you said the inputfield worked if you don't click the button, right?

[lament pike]

when I say worked I was referring to me being able to write links in it but not load them, im sorry if im making this more confusing than it should be

[grand temple]

is there a reason why you're not just using a video player prefab?

just drop this in https://github.com/MerlinVR/USharpVideo

[lament pike]

I guess the best answer to that is because i am dumb...

[grand temple]

building a video player is pretty complicated, so it's fine. Maybe you can take a look at what this is doing to see how stuff is supposed to work

[lament pike]

That's an amazing idea

[grand temple]

though it does use udonsharp, which could complicate things even more. I don't know off the top of my head any video players built with graph

[lament pike]

the tutorial i was watching used both graphed events and udon sharp so I can compare the prefab to the tutorial, either way thank you very much for the prefab!

Now i just hope i dont struggle at somkething as simple as putting it into the world

[mossy crane]

I can use TeleportTo to set a players pos and rotation, and then i want to use Set Velocity to boost them forward, but calling SetVelocity even with a delay after the TeleportTo is not sending them in the constant velocity direction(like 5 on the z)

It seems to always send them the same direction in relevance to where they were facing before the TeleportTo, need a way to wait until they are facing the right way

[grand temple]

calculate the forward direction with where you want them to be rather than their current tracking data

[mossy crane]

My graph just died so i have to recreate, but i basically took the currentpickup quaternion, and used that as the reference for the TeleportTo and it will make them face away from the pickup on collision

And im trying to make it happen anytime anywhere, based off current rotation of pickup

always just face away then set velocity forward

[grand temple]

so whatever rotation you're plugging into the teleport, take that and use it for the velocity too

[mossy crane]

ooo okies, lemme remake everything and try, thanks!

unless you know how to fix this?

[grand temple]

not sure what's broken about that

[mossy crane]

opening the graph just gives this on every click and the variables wont load

and the nodes wont load

or highlight

started happening random 😦

[grand temple]

make a canny and post the graph

[mossy crane]

Roger, 4 hours on that graph ;_;

where do i log in to make canny?

[grand temple]

it should prompt you to log in with your vrchat account

[mossy crane]

lol

I need a canny for making cannys >_<

So without SetVelocity it works

but the setvelocity is like 10000 times too powerful and doesnt go in the right direction

So he always faces the right direction, but he only moved to the left

No matter where i am

direction is good, velocity is not

[indigo finch]

you want to times a vector3 (velocity amount) with the quaternion rotation and put that into the set velocity. you don't want the Quaternion.eulerAngles

[mossy crane]

so i would take a made up vector 3, and times it against the raw quaternion?

and slap that as velocity?

[indigo finch]

multiplying a vector3 with a raw quaternion changes that vector to face that rotation direction. never done it in udon graph though

[indigo finch]

basically

[mossy crane]

? lol

[indigo finch]

give that a go. see if it does what your after

[mossy crane]

!

yesss!!! thank you!

quaternions are so damn wierd

[indigo finch]

agreed ^^

[mossy crane]

any good double jump examples?

or where to start

I can get the InputJump, and test if the player is grounded, but how do i get the local player who jumped to mess with?

[grand temple]

input events only happen on the local player

so just use local player

[mellow parcel]

where does the pictures go when u take a selfie

[grand temple]

should be in your pictures folder under vrchat

[mossy crane]

What would go on false for instance to let another jump event happen when they are airborne?

[grand temple]

inputjump happens on both the down and the up, and the bool value indicates which

[solid hamlet]

i asked before tho it was under world development but with no luck, perhaps here i would have some as i think it might be udon related aswell,
so im looking for whatever can make me able to build a map where i can have spherical walking or / and sideways wall walking etc, basicly the trippy illusion of walking upside down but everything is in normal angle for u, i saw maps having some like it before and i wonder how to do for vrc because i barely can find any proper in regards to it .

[grand temple]

That's technically possible but really really complicated and janky

[mossy crane]

Just adding a boost if they try to jump while in the air would suffice

But this doesnt work

[grand temple]

you don't have the flow connected on the left

[mossy crane]

the HECK

ty...

[solid hamlet]

yeah all i found in regards to it, if udon scripts etc was player based, i tried to add them to the vrc_world but with no luck as it seems it wont apply it to the player itself kinda, also i believe its partially something that would have to be made on the objects / meshes rather than the player i believe ? tho im not sure exactly, it is a very complex one but i would love to build a map with that in main focus .

[mossy crane]

infinite jump woot!

[grand temple]

if you're new to udon I would highly encourage you to start with something a bit more achievable

[mossy crane]

Now is there a way to limit it? Like set them grounded for a bit

but while airborn

[grand temple]

just keep track of a bool or int and check on update if they're grounded so you can reset it

[solid hamlet]

im still on a amateur state for sure, but yea i see that might be a good idea :p tho ye i hope i can end up working towards that, i figured rigidbodies also could be in play but i guess its alot of udon work too

[mossy crane]

ty!

[grand temple]

the biggest challenge is networking. The whole thing is just an illusion and you need to manipulate where players see each other

[mossy crane]

Looking to get a hand bone for instance, and calculate a velocity using point A of hand OnPickupUsedown and point B being OnPickupUseUp, Vector3 Distance returns a float but unsure how to jam that back into a V3 variable for velocity

[grand temple]

B - A = the difference between the two

[mossy crane]

Will this work on a disabled gameobject?

My Otherscript is disabled atm

[grand temple]

I think as long as it has been enabled once before, then yes

not sure though

[mossy crane]

Will test then, thank you!

Is there a way to test build in VR with multiple clients?

Or even have a desktop client as long as 1 can be in VR>

[grand temple]

yeah, just launch VR then disable VR and launch again

[mossy crane]

Hmm cant seem to get it

i can get 1 VR and non but they arent in same world

[grand temple]

disable reloading

[mossy crane]

whats that

[grand temple]

it's an option that reloads the client's world instead of launching a new one

but if clients are not launched together they won't be in the same instance

[mossy crane]

Is that found on the VRChast SDK window for building?

[grand temple]

if you go to the settings page in the SDK and "show extra options" you'll see it

[mossy crane]

ahh thank you!

and then launch 1 client without force non and 1 with?

or 2 with

[grand temple]

with and without

[scarlet lake]

how can i make the point toggle for mirrors

instead of the buttons

[mossy crane]

Can I put a cube with rigidbody on the Player layer and make it fire OnPlayerTriggerEnter event? or is that only player players

[night viper]

There is an example scene on the SDK3 that has a mirror toggle with the point (raycast/UI button) You can see how it works from there

[scarlet lake]

so i have all setup but when i test it doesnt work

[night viper]

What doesnt work? Are you able to click the button on vrchat? Either the UI is not set up properly or the Script is missing something

[scarlet lake]

here

see

[scarlet lake]

i setup it up right but when i go in nothing works

[night viper]

Change the layer to "default" I think if it is in "UI" you can only interact if you open the vrc menu

[indigo finch]

if you don't want people to collide with it, walkthrough is better

[scarlet lake]

thanks 😊

going show screen shot in world deve what ive been working on

[gusty trout]

Anyone know why Udon Behaviour would start showing like this after an U# update?

[tall vault]

Change your inspector from Debug to Normal

[mossy crane]

Is there a good trick for activating a collider that hits anyone but the local player?

as in person A activates a collider and B,C,D are effected but not A

[gusty trout]

Already is in normal 😦

[tawny kite]

Hello, how can I add a video playlist? Is there a project where I can download it or something? Right now I am using USharpVideo player, is it possible to do something like this with that video player?

I've found ProTV video player which has a playlist.

[gusty trout]

Now that I managed to fix the first issue I had by reimporting everything, I am getting this error. Even tried to revert VRCSDK and U# but nothing is working. Everything that has an udon script is showing as not found.
Tried restarting Unity and reimporting all related scripts but no luck.

Any help is much appreciated ❤️

EDIT: idk how I fixed it but I must have reimported Udon Sharp, VRCSDK, Udon and some other scripts 10+ times and it eventually worked. Love unity

[icy pollen]

I dont know too much but try reimporting the audiolink script. And another thing that i had was i needed to compile it but i have no clue how to do that anymore

[gusty trout]

Yeah I've tried reimporting all the scripts I used and recompiling but that is when it spams errors. No idea what is happening considering a revert did nothing too

[icy pollen]

Man sorry i could help much good luck on it, hope you figure it out

[gusty trout]

All good thank you anyways ❤️

[dense goblet]

As soon as i pull any gameobject out of my scene into udon it starts screaming

How can i fix that?

[twilit breach]

Is anyone familiar with drop input events for Quest? It works fine on my WMR but doesn't seem to fire when I release my grip on the quest

[tawny kite]

Hello, I am using ProTV video player, I added a playlist with a search box, but the search box doesn't work, can someone help me?

[grand temple]

inputdrop does not fire when you release the grip button, it fires when you press the button that triggers "drop" which only applies to some controllers. If you never receive inputdrop you can assume that the player is using one such controller, and in that case you can have the same thing happen when you release grab

[twilit breach]

Ah, perfect I'll switch the nodes to grab. A nice easy solution, thanks Phase

[dapper lion]

you must go to the search bar game object, go to the udon behave in the inspector, find the playlist array, then drag and drop the playlists in your scene into that playlist array. if you have already done this, may i see screenshots of the playlist inspector and searchbar inspector?

[tawny kite]

I can't, there is no button to open udon graph

[dapper lion]

"Playlists to search"

put your image playlist in that array

[tawny kite]

Sorry, I'm not sure what you mean by that

oh wait

[dapper lion]

what does imageplaylist inspecotr look like?>

[tawny kite]

It works now, all I had to do was put the PlaylistSearch in to the ImagePlaylist "Playlists To Search" array.

Thanks

[scarlet lake]

how do i make a transparent mirror

[dense goblet]

How can i go back to look for other Stuff in the create node thingy

everytime i click it it goes to VRCEvent Search

but i want the search that i had the first time i opened this

[grand temple]

make sure you don't have another node highlighted

when you click on a node, it will give you only search results related to that node

[dense goblet]

Makes sense

is there a way to make an object uninteractable after something happens

[grand temple]

sure, set disableinteractive true

[dense goblet]

What would be the instance?

[grand temple]

the udonbehaviour that you want to disable interactive

you can leave it blank if you're talking about the one that this script is running on

[dense goblet]

Thank you

[dreamy gorge]

Anyone know how to disable the TMP things in the editor, they get really annoying

[dapper lion]

gizmos button on top right acene window

[dreamy gorge]

Yknow what

Its better like this instead

[dense goblet]

How to add 2 numbers together in udon i litterally cannot see it in the math module

I'm feeling very stupid not to be able to add 2 numbers together lmao

Found it

[indigo finch]

https://github.com/acertainbluecat/VRCPlayersOnlyMirror

[dense goblet]

How can i get a variable from another udonbehavior

[grand temple]

You need a reference to that other udonbehaviour, either by having a public variable of it or by using getcomponent. Then use the GetProgramVariable node

[grand temple]

Depends on your use case. The reason to use an object pool is because you usually want those objects to be able to send networked data, like with pickups. If you don't need that, you can use instantiate and have it all be managed and synced by a central non-instantiated object

if you're working with virtually unlimited objects then you might not even want every single object to be sending data anyway

could you provide more details about what you're trying to do? I could give you some recommendations on the best way to accomplish your goal

yeah you should just have a big object pool

make sure to put the pieces on a layer that does not collide with itself and performance shouldn't be too bad

pickup collides with itself. 500^2 collision checks is expensive

and you don't need 500 objects of each type, you only need 500 objects that can transform into whatever type you need

that transforming can be done with instantiation

you could have a big manual synced int array somewhere that corresponds to what type each object should be. Then it instantiates whatever children it needs to be that type

not if they're instantiated

but you can sync on the main object

[mossy crane]

Is there a good trick for activating a collider that hits anyone but the local player? As in person A activates a collider and B,C,D are effected but not A

[grand temple]

onplayertriggerenter, check if not local player

[delicate bluff]

What is udon?

[mossy crane]

Ahh, my 3 am brain couldn’t compute that thank you

[mossy crane]

In a nutshell, its the current way we can use Unity to add avatars and worlds to Vrchat

[delicate bluff]

O ok

[mossy crane]

Its a visual scripting addon like Playmaker but someone made it so you can C# code as well and turn it into "U#"

[grand temple]

not avatars

[mossy crane]

oh is that just SDK 3

[grand temple]

it's just worlds

avatars have their own SDK3 which is a different system

?whatisudon

[hidden marten]

VRChat Udon is a programming language built by the VRChat Development Team for use in VRChat worlds! It enables complex behaviors and logic in VRChat worlds. Read more about Udon in our documentation: https://docs.vrchat.com/docs/what-is-udon

[dreamy gorge]

any way to play audio from url containing .mp3 file?

like https://url.com/song.mp3

[mossy crane]

I have a InputUse im using to enable a gameobject with a collider, the collider has a graph on it to play a audio 1 shot on enable, and then a OnPlayerTriggerEnter and after 1 second the object turns off until InputUse is called again. My problem is both clients hear the OnEnable audio but the OnPlayerTrigger is not firing on non local players

This would work to detect other players on trigger enter right

adding the islocal and branch makes it not fire on the person triggering it, but with or without i cant get other players hit

[wind atlas]

Did you try a video player? I've seen sound cloud links work with that, so there is a chance mp3 will work.

[dreamy gorge]

I'm about to try

i have to edit the source code since im making a song browser

a track contains a VRCUrl object and when you click it, it should just play on the USharpVideo

i gotta figure out how i can do this the easiest way

ill just make my own method

[steady sun]

Man this is so cool I wanna get into it too

[wind atlas]

ProTV has a working playlist, with a custom editor to manage what's inside which is neat.
However, making it yourself isn't too difficult. Not sure if creating a script for every button is a good idea performance wise, probably fine if you disable networking. I'd personally give each button an Id and use that to identify the song in a VRCUrl array.

[dense goblet]

how exactly would the getcomponent method work?

[grand temple]

plug the udonbehaviour type into it

[dense goblet]

and out of that getComponent how exactly am i able to get the ProgramVariable?

[grand temple]

like this

[dense goblet]

oh

type

ofc

[dense goblet]

I think i'm missing something

but i don't know what

[grand temple]

that should work, are you sure that isLocked and isClosed are spelled correctly?

and that there is an udonbehaviour on Door with those variables?

[dense goblet]

Yes and yes otherwise CyanEmu probably would've complained

Oh wait

nevermind

me idot

[mossy crane]

this sets this gameobject active

[grand temple]

??

[mossy crane]

And the OnEnable of the other object fires

but the OnPlayerTriggerEnters only sees local player

[grand temple]

make sure the collider is touching the ground. Remote player colliders are a small sphere around the feet instead of a full capsule

[mossy crane]

Pretty big collider i think it touches

im basically moving a object to a players location on click

and anything caught in that triangle should get hit by OnPlayerEnterTrigger

which it does if the 1 who clicks steps on it

[grand temple]

does it have a rigidbody?

[mossy crane]

it does not

[grand temple]

if you're moving an object with colliders it should have a rigidbody if you want collisions to happen properly

[mossy crane]

before it was a child of a pickup with a rigidbody, maybe thats it

[dense goblet]

Ist this bool automatically changed when another script calls SetProgramVariable

[mossy crane]

definitely hitting other player, and the other player sees it hitting them

but only the 1 who clicked will get the OnPlayerTrigger Event

[grand temple]

what does the onplayertriggerenter look like?

[mossy crane]

it was working before on my OnPickupuseDown enable

[grand temple]

teleportto only works for the local player

you can't teleport other players

[mossy crane]

i def can

[grand temple]

no you cannot

[mossy crane]

D:

I had that same triangle collider on the end of a pickup, and wherever i faced that player, they would rotate the same way im facing, and get launched

[grand temple]

to teleport another player you need to communicate with them somehow and then get an udonbehaviour on their client to call teleport

[mossy crane]

but before i was using a pickup get player as my ref for rotation on the teleport

This 1 works on teleporting other players

[grand temple]

idk what you were doing but it's probably not what you think you were doing

[mossy crane]

oh

[grand temple]

Yeah, in that case the other player detects the collision and teleports themselves using the currentplayer of the pickup

[mossy crane]

Hmm how would I strip out the need for a pickup? and just have a disabled gameobject in the scene at start with the collider, be able to hit other players

a manual sync type deal?

with serial and deserial

[grand temple]

well how do you want to define the location that players get teleported to?

[mossy crane]

I want it based off their current location

basically want to move them up .01 Y to get them off the ground

turn them around

and velocity them away

[grand temple]

so why do you need to define some specific player?

and why does that need any networking at all

[mossy crane]

player A clicks mouse and enables and move the object so the collider is facing away from them, anyone caught in that goes woosh

but if i click while sprinting, i can also enter the collider and get wooshed

the isplayer local == false fixes the clicker getting wooshed, but still need any other players to feel it

[grand temple]

ok so when a player does inputuse they need to take ownership and set synced variables for the position of the thing. Then other people receive that data, move it into place, and if they touch it and they need to know about the owner they just do networking.getowner

[mossy crane]

hmmm... click > take ownership > others test for owner, OntriggerEnter if not owner execute?

[grand temple]

yeah

[mossy crane]

gotcha, ill play around with that thank you!

[dense goblet]

this should work yes?

[grand temple]

only if that event is on this udonbehaviour

[dense goblet]

Really

omg

no way to send a custom event to a different udonbehavior?

[grand temple]

plug a different udonbehaviour into the "instance" slot

[dense goblet]

oh

[dense goblet]

shouldn't this be switched everytime the event is called?

[grand temple]

yeah that should work

you really should just use an udonbehaviour variable instead of gameobject+getcomponent though

[dense goblet]

then something with my teleport system is broken because as soon as i interact with the door it just does nothing

The disable interactive is above this

[grand temple]

is target or count not set in the inspector?

[grand temple]

check your log to see if anything is crashing

https://docs.vrchat.com/docs/debugging-udon-projects

[hushed gazelle]

I've seen a few worlds achieve vehicles moving on a track (eg UdonTycoon), what's the method being used to achieve that given splines don't seem to be exposed?

[grand temple]

make your own splines with math

[unborn hornet]

M A T H M A G I C

[slate orchid]

is there a guide to do the following when bullet hits a box it turn the renderer off, play a particle effect, play a sound,

[mossy crane]

Can probably just look up any unity tutorial for that, most of the things exist in Udon for Collider event and setting gameobject components on or off. As well as audio play 1 shots

[indigo finch]

It's rather niece topic, in an environment that already doesn't contain many tutorials in general. I would look into seeing if you can find any similar prefabs at places like VRCPrefabs.com and the likes, and seeing what they did and adjusting it. Most people will likely use udon#, and if your comfortable with that, many unity tutorials for C# will help. If your doing this with udon graph, perhaps looking at Bolt tutorials might help? but they too aren't that common either and there are differences between Bolt and udon graph.
As for that script in particular, it would be something like this. I haven't tested this, and I'm suspicious of the 'particle system play' part of it not working, but it'll hopefully give you some pointers as to where to look

[slate orchid]

@indigo finch could we vc and u help me out

[indigo finch]

Honestly, I think someone else will be better at helping you achieve it. There's just too many holes in my udon knowledge. I just shared something that will likely work (or at least close to it) to help give you a jumping off point, and/ or to get the code roasted and me learn something new ^^

[slate orchid]

i did see this

[indigo finch]

That seems as good of a reference point as any. It'll likely use udon#, but there are plenty of people that can help, expecially if you can break down the problem into a small, specific question

[boreal lynx]

Does anyone knows a way to load image texture from "URL" inside udon ?

[indigo wagon]

Why not just, put the PNG into your project

[fickle stirrup]

posters, calendars

[fickle stirrup]

i think for now with udon, only via video players or avatar previews, maybe im wrong, but i think the thing that used in sdk2 to load images after join isn't supported in sdk3

you can try to look at some Japanese, Korean calendar prefabs, they should have any kind of implementation of this, i think https://github.com/AoiKamishiro/VRC_UdonEventCalendar but maybe not 🤷‍♀️

[slate orchid]

@indigo finch this shit is getting to overwhelming i'm making a game and i did all the map making and i am not meant to be doing the f**ing coding my friend is but he has not done anything for a week and i really wana get this done i have been trying to do sht for 4 hour and i give up for now

[boreal lynx]

Interesting ! thanks will look into it.

For the time being I did the same with SDK2 with VRC_panorama .
Is there any demerits if i stick with sdk2

[topaz jetty]

Eventually SDK2 will no logner be supported, and then you can't upload or update worlds or avatars using SDK2 anymore

I wouldn't reccomend using it

plus a lot of cool prefabs are sdk 3 only

[lament ether]

Would anyone know how I would be able to toggle the material in for the world from dynamic materials instead of it being in the actual world?

[obsidian turtle]

Hi, is there a way to get video players to play a Youtube Playlist?

I'm using Wolfe's Video Player

currently it's playing the first video, but doesn't change to the next video

[grave lantern]

Is there an easy way to freeze an animation?

[grand temple]

sure, you could create a float variable and have it affect the speed of the animation. Then just set it to 0 to pause

[grave lantern]

Genius 😛

[grave lantern]

Should this work 😒

[grand temple]

yeah

[opal dew]

I'm trying to capture and store a still image from a render texture (to take a player 'profile picture') for a menu system (similar to what the Among Us world does), how is this achieved? I've tried something like the following but getting "ReadPixels was called to read pixels from system frame buffer, while not inside drawing frame."

Unless that update call is being fired before the current frame completes...

[grand temple]

you don't need readpixels at all, just render the camera to the rendertexture that's it

readpixels is for something else entirely

[opal dew]

And if I turn the camera back off.. it preserves the last capture?

[grand temple]

yes

[opal dew]

sweet!

Thanks

I'm building up a menu system for a game and for a game master to review a player list and assign roles etc. The main annoyance I have though is it seems the best way to do stuff is a menu where you cycle through each player, as its possible to say, have a button per player and know what button was just clicked on because of the limits of the event system not letting you pass data

So I can't do something like playerButton(player), only, playeroneButton(), playertwoButton() and that REALLY doesn't scale :D;;;

[fiery yoke]

The most common way people get around that is by setting the textfield of a text ui component to some specific value, and then sending a custom event to an udon behavior, which then reads that field. It requires either manual setup in-editor or an editor script though and is very roundabout

[opal dew]

@fiery yoke The other thought that came to mind was doing something painful like seeing if I can read what control the laser pointer (be it head or hand sourced) is focused on.

Skimming through though, that looks like it would pretty impossible to discover though

[grand temple]

you can do that if they're toggles. the udonbehaviour can loop through all toggles and see if one is true. then it knows which was pressed and can also reset it back to false

I still prefer the text string method though

[opal dew]

I thought custom events mind have no arguments though? Unless I've missed something here.

eg, if I have a player button with a display name

And I send 'PlayerButton()' clicked, how do I know which player button sent the message?

[grand temple]

correct, the text is a way of creating an argument though

The button sets the text then sends the event to the udonbehaviour. The udonbehaviour then reads the text as the argument

[opal dew]

Oh, so something like this is permitted?

[grand temple]

regular text, not textmeshpro

[opal dew]

Oh sure, I only had a textmeshpro to hand to quickly build this

[grand temple]

lots of button events get filtered https://docs.vrchat.com/docs/ui-events'

[opal dew]

Right, but even a deactivated invisible regular text field would still be updated?

[grand temple]

yep

[opal dew]

Okay, awesome

Clunky but awesome

Then I could string to int, int to matching int in the player list, then woo

@grand temple Many thanks :)

[grand temple]

use int.tryparse

[opal dew]

Oh, one small urk, I'd still need player buttons for every player slot wouldn't I? Because I'd need to input the data for the first field. I couldn't just VRCInstantiate a button and change the data within that onClick Invoker.

[grand temple]

so just have a bunch of buttons disabled

[opal dew]

Yeah.. that's what I thought. Just you know. Say, 32 player world, with the 2x overflow to the hard cap, that's 64 buttons to setup. Sob.

[grand temple]

that's not a big deal

[opal dew]

Well... one last idea.. split the difference. Use a paginated list.

Then I only have say ten buttons, and keep track of which users are on that page.

With a different ouch being that players leaving/joining would cause a reshuffle

[grand temple]

if it's just the manual effort of creating the buttons, then use this

[grave lantern]

So i got it to work but it seems that it doesn't work to play animations in reverse using a speed value of -1. Do you have a trick to go around this so i could play my anim in reverse? 👼

[grand temple]

use an animator variable for speed instead of the animator speed itself

when you click on a state in the animator, at the top right there is a "speed" property. You can enable a multiplier that can be a variable

[opal dew]

Oh nice o__o; Is this something you made for yourself?

[grand temple]

yeah

[opal dew]

Ah cool! Well, thank you for sharing! ^^

[vital cypress]

How hard is it to convert a pc world to quest compatibility

[brazen epoch]

not that hard. There are some limitations such as limited transparency/cutout support.

Udon stuff is pretty much the same

[opal dew]

Depends entirely on the kind of world

I never quite understood that one, how do you do like... windows, without transparency?

[brazen epoch]

You can fake it with matcaps

[novel prism]

I have an issue where I can't click canvas buttons in-game in the world I'm making in SDK 3, any ideas?

[grand temple]

Take a look at the common problems in this doc https://docs.vrchat.com/docs/vrc_uishape

[mystic pond]

How can I globally reset objects in my world?

[valid basin]

@dusk lance i noticed the CyanClimbing package is listed as SDK2 prefab, is there a SDK3 version out anywhere?

[wanton palm]

Is there any way I can call finalIK script methods through udon?

[dusk lance]

At this time, CyanClimbing is only for SDK2. Other people have made their own climbing systems, but they may be paid. I suggest checking booth or gumroad.

[wanton palm]

Does anyone know how can I get local player bone positions?

I'm guessing it's something like

VRCPlayerApi.GetBonePosition(,HumanBodyBones.Head);

but I don't know what to put on the first parameter

[grand temple]

Networking.LocalPlayer

[wanton palm]

many thanks

[valid basin]

thank you

[grave lantern]

this may be a silly question but how do i upload my world without replacing the version that is already published?

[grand temple]

upload to a different world ID

[obsidian mountain]

Is there a way of destroying objects?

[grand temple]

yeah, just call destroy

[obsidian mountain]

Unity's destroy doesn't work though

[grave lantern]

how do i change the world id?

[grand temple]

click detach in the scene descriptor

[grand temple]

can you share the code or graph you're trying to use? It should work

[obsidian mountain]

    private void OnCollisionEnter(Collision collision)
    {
        if (collision.gameObject.name == "TestCube") EarnedCube(collision.gameObject);
    }

    public void EarnedCube(GameObject obj)
    {
        Destroy(obj);
    }```

[grand temple]

In order for oncollisionenter to happen you need both objects to have a non-trigger collider and at least one of the objects needs to have a rigidbody. Is that the case?

[obsidian mountain]

Yeah I know about collisions, though I just realized I forgot I set the object with the script attached to trigger lol 🤦‍♂️

[fiery yoke]

OnCollisionEnter is specifically for non-trigger colliders

[obsidian mountain]

Still doesn't work it seems though

[grand temple]

are you getting any errors? Directly asking for the name of something like that could cause your udonbehaviour to halt if it hits a protected object

you could filter it by checking if (!utilities.isvalid(collision.gameObject)) return;

[obsidian mountain]

No errors from what I'm seeing

[fiery yoke]

Also because I saw it before you removed it, wasnt there thing with "PlayerManager"? I remember that some class names are already taken or used so UdonSharp gets confused. Or something like that.

It was a niche issue a while ago, not sure if thats still the case.

[obsidian mountain]

No worries on that, it was irrelevant so I removed it

Also Unity itself would alert you if you used the same class name

[fiery yoke]

Yeah not in all cases. Unfortunately its not all that straight forward.

I specifically remember having an issue with generically named class (Im like 90% sure it was PlayerManager)

But yeah:

• Respect the rules for collisions
• Make sure the behaviour didnt crash
• Make sure your method of testing the collision actually works
  (So when you do a Debug.Log, make sure you also run a Debug.Log in Update to both make sure it actually logs and didnt crash)

[dreamy gorge]

How do I label this section of code? Like a comment

it gets a bit confusing, ive seen comments in other code

[grand temple]

right click, add comment

[dreamy gorge]

garcacas

gracisas*

[toxic pecan]

what is udon

[novel prism]

This is extremely frustrating, I've been working on this for an hour now, an Udon graph is working in editor when I invoke OnClick(), but isn't working in game even though I CAN click the button

[grand temple]

VRChat removes some button events for security reasons, you may be running into that

https://docs.vrchat.com/docs/ui-events

[hidden marten]

VRChat Udon is a programming language built by the VRChat Development Team for use in VRChat worlds! It enables complex behaviors and logic in VRChat worlds. Read more about Udon in our documentation: https://docs.vrchat.com/docs/what-is-udon

[grand temple]

?whatisudon

[novel prism]

Hold on... Maybe my issue isn't with the button itself. Does VRChat not allow GameObject creation using C# script??

[grand temple]

no, you cannot upload worlds with C# scripts directly. You must use udon

however, UdonSharp is a tool that allows you to compile C# into udon

[novel prism]

Okay, thanks, now at least I know what's wrong

    {
        GameObject spawnLocations = new GameObject();
        spawnLocations.name = "spawnLocations";
        int count = 0;
        foreach (Transform child in transform)
        {
            GameObject location = new GameObject();
            location.name = count.ToString();
            count++;
            location.transform.position = child.position;
            location.transform.rotation = child.rotation;
            location.transform.parent = spawnLocations.transform;
        }
    }``` So what's wrong with this

I get this error System.Exception: Method is not exposed to Udon: Void .ctor(), Udon signature: UnityEngineGameObject.__ctor____UnityEngineGameObject

[grand temple]

you can't create new gameobjects like that

If you need to instantiate, you can do so with VRCInstantiate, which will clone an existing gameobject

[royal acorn]

any better way to create chairs without taking the VRCChair, scaling and moving it to the correct spot and deleting the model? I mean, obviously there is, but what would that way be? I feel like custom behaviors/scripting with Udon could be just as tedious, but maybe I’m wrong.

[dreamy gorge]

How would I call this U# method from a graph asset (featuring parameters)

[novel prism]

Now I'm not creating any new GameObjects, I'm just trying to Find() GameObjects and VRCInstantiate and it still gives the exact same error

[grand temple]

are you sure you replaced all the new GameObject() parts?

[novel prism]

    void Start()
    {
        GameObject spawnLocations = GameObject.Find("spawnLocations");
        int count = 0;
        Vector3 position = new Vector3();
        Quaternion rotation = new Quaternion();
        foreach (Transform child in transform)
        {
            count++;
            position = child.position;
            rotation = child.rotation;
            GameObject temp = VRCInstantiate(emptyObject);
            temp.transform.parent = spawnLocations.transform;
        }
    }```

And I was gonna drag the emptyObject from the hierarchy onto the script in the editor

[grand temple]

I mean, if you're not using new gameobject then there's no way to get that error. I guess clear your log and recompile?

[vague osprey]

Could Udon be used to make a functional elevator where the door shuts, and the Elevator proceeds to go to the floor it's supposed to go to, open the doors up, and be able to use it again to go back to the original floor?

[grand temple]

Yes, that's totally possible. That's probably a decent beginner project

[mossy crane]

So, i have a manual udon behavior that anyone can call with InputUse, it makes them owner, executes and OnPlayerTriggerEnter only hits non owner, what would be a good way to add a cooldown on InputUse for anyone who has called it recently to prevent spamming?

Seems to work

[grand temple]

set a float to time.time and check if time.time-float > cooldown

[mossy crane]

ahh gotcha thanks!

I can skip a separate object for cooldown and just make a custom event that counts?

[grand temple]

sure

[mossy crane]

using

[compact stirrup]

Quick question for peeps here! Event_OnPickup, does it fire for only the player picking up the item like Event_interact? Or will it fire for all clients in the world when the object is picked up?

[grand temple]

only the person who did it

[compact stirrup]

perfect, thanks

[mossy crane]

How are people making these? Right click Comment just gives a centered text line and it obscures all my noodles

groups seem to work but i cant change their size

Ah nevermind, select nodes then group

[hushed gazelle]

Is player TrackingData not consistent between desktop and VR? I'm trying to track the head position for a portal camera, but it's coming out off-position in VR.

[unborn hornet]

You would have to open the uasm asset and find the udon variable that it compiles into, which is fragile because certain changes in the script could cause it to compile to a different variable name.

The better option would be to predesignate a variable to act as the method parameter and be used by the method in place of the usual one.
Attached is how I would write it using an IN_ prefix to denote the variable as one that is used explicitly as an input to an event call. To call it, you'd do UdonBehaviour -> SetProgramVariable [target, "IN_PAUSED", true] then UdonBehaviour -> SendCustomEvent(target, "_SetPaused");
(Ignore the red squigglies, cba to type out all the objects).

[brazen epoch]

Might be because you don't set a value on PickupUse* events

gotta connect a const value to the value input

boolean const true or const false and attach those constants to the value input

[mossy crane]

Does the owner of a gameobject also become the owner of the UdonBehavior on that object?

[brazen epoch]

yes. Only the behavior on this GameObject. Not it's children

[mossy crane]

Excellent. Thank you!

[boreal lynx]

Unfortunately external url texture with VRC_Panorama is not working with android build ( for quest 2)

• although it works with windows deployment

Is there any material or texture optimization that we wanna do to make a texture quest compatible ?
couldn't figure our why it happens

[edgy sparrow]

Hello there, i'm just kind of reposting my message from #world-development here, trying to be more specific.
Is there a way to add 2 different interactions in one component depending on the platform the user is on ? For example, a door handle that could be grabbed in vr to trigger a sliding door that would just be a trigger opening the door automaticaly in PC ?

[lament ether]

So I currently have this Udon graph to change the mesh renderer from a material already in the world. However, I also want to use a material from Dynamic Materials as well but I have no idea how to do that. Any help?

[grand temple]

don't use dynamic materials, that's an old sdk2 thing

[lament ether]

So i'm gonna have put the texture on a plane and then just grab from there instead.

[grand temple]

just make a public material variable and drop it in the inspector

[lament ether]

How would you do this? I'm very new to udon and don't really know that much

[grand temple]

make a new variable

make it a material

set it to public

[lament ether]

Like this?

[grand temple]

the name doesn't matter, I mean check the public box in the dropdown

[lament ether]

Ok done it

[grand temple]

now it 2ill show up in the udonbehaviour as a slot you can put anything in

[lament ether]

I don't see any new slots

Oh wait nevermind just needed to compile

give me a moment to sort it and i'll see if it works

I think I am still a bit confused, may try again later

[dapper brook]

Hi I followed a tutorial to create a URL player with play/pause, volume control but the volume is the only part that works! the play/pause dose nothing and loading a URL just freezes the current playing video! can anyone see whats wrong?

[dapper brook]

There is no UdonExampleScene in the VRChat Examples folder?

[grand temple]

Have you made sure that the buttons are calling the correct sendcustomevent's with the correct capitalization and everything?

[dapper brook]

will check that over now! thanks

[dapper brook]

ok that fixed the play/pause button! had a cap L in play by mistake! load URL still not working so gonna have a look and see if i can see whats up with that part of the graph?

[dapper brook]

nope no idea why the URL is not working? back to reading docs i guess

[novel prism]

Is there even any way to automate object position reset in Udon?? I ended up writing this script that should automate creating empty gameObjects where the spawn locations would be, with an Udon graph that teleports the objects to those empty gameObjects. Now it works half the time, and they teleport very slowly. public GameObject emptyObject; void Start() { Debug.Log(transform.childCount); GameObject spawnLocations = GameObject.Find("spawnLocations"); int count = 0; Vector3 position = new Vector3(); Quaternion rotation = new Quaternion(); foreach (Transform child in transform) { count++; position = child.position; rotation = child.rotation; GameObject temp = VRCInstantiate(emptyObject); temp.transform.parent = spawnLocations.transform; } }

[hollow smelt]

hey im kinda new to unity and i was wondering if there is like a way to union diffrent cubes together

[grand temple]

That's typically something you would be doing in a 3d modeling program like blender, and then you can export the model to use it in unity

[hollow smelt]

oh ok ok ill model the road in blender then!

thanks for the help!

appriciate it

[grand temple]

sure, just replace playerapi set velocity with rigidbody set velocity. Make sure the object has an objectsync on it and then also make sure you do setowner

[indigo finch]

Yup, there is a 'PlayerApi.isUserInVr' node. An example of that script would be something like:

[scarlet lake]

How would I get every instance of a component in a scene? Say, for example, every MeshRenderer component? Every time I try an alternative method, I receive an error that the method isn’t exposed by Udon

[grand temple]

you're welcome!

[hard panther]

hey so is there a way to fix the “unusual client behavior”

and thats a ip grabber

[hard panther]

anyone?

[indigo finch]

That sounds... destructive. Perhaps this will be more useful. This example script grabs the mesh renderer of every child of a public gameObject and turns it off. With it, you could grab all the objects you want to toggle off their rendering, put them all under an empty and use a button to toggle them all off

[scarlet lake]

Awesome, thank you very much for the help

[indigo finch]

np ^^

[slate orchid]

hi I'm working on a game i no next nothing about udon it's a gun game i have the map made it;s just coding i'm stuck on could someone help where i should start

i flicked throught it but he did not really explain it he just kinda did it i'm trying to remake steel n gold but know nothing about coding

[slate orchid]

@reef nebula u have been typing for soo long

[grand temple]

current it is getting the player's velocity and adding onto that, then applying it to the rigidbody. You probably want to add onto the rigidbody's velocity instead

that doesn't really explain why it would do nothing though, it should still move it just not how you want

have you assigned a rigidbody to the "fighter" variable in the inspector?

is the rigidbody set to kinematic false?

kinematic true will disable physics and setting velocity will do nothing

if you don't want it to have gravity you can disable gravity

probably want to add a bit of air resistance unless you want it to keep flying indefinitely

that will prevent it from speeding up beyond 50, but that will not slow it down

[reef nebula]

I don't know if someone from the support team can talk to me now

[grand temple]

it's a value on the rigidbody

[reef nebula]

anybody please

[grand temple]

if you need help from VRChat support you should contact them at https://help.vrchat.com/hc/en-us

[reef nebula]

yeah but what I want to reports is complicated

[grand temple]

either way, this is not the appropriate channel for that

[kindred trench]

Tf is UDON

[grand temple]

?whatisudon

[reef nebula]

like target crash one person (me) from a map and when relaunching the game return to the same map it instancrash again

[hidden marten]

VRChat Udon is a programming language built by the VRChat Development Team for use in VRChat worlds! It enables complex behaviors and logic in VRChat worlds. Read more about Udon in our documentation: https://docs.vrchat.com/docs/what-is-udon

[kindred trench]

Ah

Thanks

[slate orchid]

@blissful shore how would i make it so when a animaion plays so does the particles at the moment when i run a ani atm i have the gameobject it is in just turn on and off but after testing my bool it dose not render the partical more then once

[reef nebula]

I don't know who to talk to and what category to report it

and if I can talk in this server of this

[grand temple]

You should use particlesystem.play instead of relying on play on wake

[slate orchid]

ooo thanks i was looking for something like that did not know what it was called thxs

[slate orchid]

is that for udon or the animation tab cus i can not find it in the add propertys

[grand temple]

animations can't do that, you'd need to do it with udon

[slate orchid]

ooooki

[scarlet lake]

It doesn't appear that Udon offers many methods to arbitrarily find and return one or more components/GameObjects. I'm trying to add a component to all players at runtime, but I can't seem to find a practical way of accomplishing this. Does Udon not intend for this kind of usage?

[slate orchid]

could someone vc and help

this is my graph atm

[grand temple]

I guarantee there's a way to do what you want, but not specifically through adding a component to a player. There is gameobject.find to find some object by name, but that will not give you players because players are protected and cannot be modified by the world. Furthermore, adding a component to an object is not supported. You can instantiate objects as a copy but be aware they will not have any networking capabilities

[slate orchid]

how would i add the partical.play

[scarlet lake]

Oof, well, that settles it, then. What I'm trying to do is impossible. Thanks for letting me know

[grand temple]

typically if you want to give an object to each player you would need a player pool that automatically assigns objects as they join. If you want to then attach those objects to players you can simply set their position on update

[grand temple]

Add a new variable of a particlesystem. Make it public so that it shows up in the inspector. Then search for the particlesystem.play node

[scarlet lake]

Hm, that's good to know. Unfortunately, since I'd need to modify a component on a player, there's not much I can do at the moment. Thanks for the advice, though!

[grand temple]

but what component do you want to modify?

if you give some details about what you want I may be able to point you in the right direction

[scarlet lake]

MeshRenderer to allow LightProbeProxyVolumes

For higher-fidelity dynamic lighting. No idea why it isn't a feature by default

[grand temple]

ok that's fair

[slate orchid]

so like this but how do i connect it so when the ExplodableBarrel animator is true they both play at the same time

[grand temple]

connect the arrows with the white lines together. That is called flow and determines the order in which things happen

[slate orchid]

so conect it to the setbool one?

[grand temple]

yes

[slate orchid]

urrrrr? i'm sorry i'm still lost

[grand temple]

connect the white arrows together

[slate orchid]

i did

[grand temple]

and how does it look now?

[grand temple]

yes, that should work

make sure that the particles are enabled and do not get disabled by the animator

[scarlet lake]

hello?

i need help

[grand temple]

https://dontasktoask.com/

[slate orchid]

vrc need vc chats here

[grand temple]

non-convex mesh colliders don't work on rigidbodies. Set it to convex, which will simplify it

transform.rotation

[slate orchid]

it dose not work

must be fucking something up

[grand temple]

you can get and set transform.rotation, though you probably won't want to directly set it because that will spin way too fast. You could instead use Quaternion.Slerp and provide the current rotation of the rigidbody, the desired rotation of the rigidbody, and some very low number like 0.05 which will determine how much it moves per frame

[grand temple]

have you enabled the particles? In the latest screenshot I can see that they are disabled

[slate orchid]

yup

[grand temple]

does the animator work?

in both directions - turning it on and also turning it back off

[slate orchid]

yup the mesh turns off and the sound plays

[grand temple]

could be something wrong with the particle system. What does that look like?

also woah, you have two scenes. That's not supported for a VRChat world and would probably prevent you from uploading correctly

[civic birch]

I'm trying to port a world from SDK2 in which an animation plays upon interaction with a part of the world and makes a game object active. I've gotten the former to work, but every time I try to add the object enabling, the whole thing breaks, possibly because said object is part of the armature doing the animation

[slate orchid]

i know i'm just playing with a prefab under the project

[slate orchid]

is it cus the bool is in the animation

[grand temple]

how are you trying to add the object enabling?

[grand temple]

I see nothing that would prevent that from working. The animator is not touching the particle system. Does the particle system play when you manually click play? Does it not have emission or something weird?

[civic birch]

Mostly through the GameObject.Set kinda commands

[grand temple]

just make sure you're plugging in a valid gameobject and it should work

[civic birch]

Like this?

[grand temple]

yep!

[slate orchid]

it plays fine when i push play

[grand temple]

how exactly are you testing this?

[civic birch]

CyanEmu

[slate orchid]

CyanEmu pushing toggle on the event

[civic birch]

Also that

[slate orchid]

wait u talking to me @grand temple or @civic birch

lol

[grand temple]

you

[slate orchid]

CyanEmu pushing toggle on the event

[civic birch]

@grand temple Also it seems that the anim is working okay, but the object isn't spawning

[grand temple]

honestly I have no idea why this would break anything but just to rule out any weirdness, try unloading the other scene entirely and use VRChat to test instead of cyanemu

[slate orchid]

i did

[grand temple]

you disabled the other scene. Unload it

[slate orchid]

u sure the graph is right the bool comes from the animation controller

[slate orchid]

yup

did that

@civic birch what r u making?

[civic birch]

A machine the dispenses a piece of gum, the anim carried over fine from SDK2, but I can't seem to enable the gum object via Udon

It's supposed to do this when I click on a part of the machine

[slate orchid]

did u try maybe just an animation to toggle it on and off with a bool

[civic birch]

Not sure that would work as it's part of the machine's animator

But I am trying to use a bool in Udon to toggle it

I'm wondering if there's just a reeeeeally specific thing I'm missing

[grand temple]

does the animation forcefully disable TCGum?

[dreamy gorge]

can someone show me how an IF statement works with udon?

that did not work ^^

[grand temple]

Branches are the equivalent of an if statement. Isvalid is checking whether or not something is valid, and bools are always valid so that will always return true

[civic birch]

Nope just moves the bones

[dreamy gorge]

How can I check if something is true or false then?

[grand temple]

with a branch

[dreamy gorge]

OH

[civic birch]

TCGum was also the means of deactivating the machine in SDK2 as its own trigger, so I enabled and disabled the object itself

[dreamy gorge]

Okay thanks

thank you:D

[grand temple]

do you have any udonbehaviours on TCGum?

[civic birch]

Not yet as I'm stuck on the "turn on machine" part

[grand temple]

do you have any other udonbehaviours that affect TCGum in any way?

[civic birch]

I can check for leftovers from SDK2, but that's about it

[civic birch]

Nothing here

[grand temple]

you have slerp, but not doing anything with it. You need to slerp from the rigidbody's current rotation to the pickup's current rotation. The resulting rotation should be plugged into a rigidbody set rotation node that happens after you set velocity

actually moverotation I think would be the best

yeah, you can start here https://docs.vrchat.com/docs/what-is-udon

however that mostly handles the vrchat-specific parts. A lot of this is actually straight out of unity, so you can also reference unity documentation for things like rigidbodies https://docs.unity3d.com/ScriptReference/Rigidbody.html

[civic birch]

I'm about to lose my mind over a piece of virtual gum

[grand temple]

@civic birch @slate orchid I'm not sure why you're having issues, those both sound like extremely simple things that shouldn't be having any problem. I would recommend trying to recreate the same scenario in a fresh scene where nothing is happening except this one udonbehaviour and animator. For good measure, you can also take a look at this page and make sure you're not getting any errors. https://docs.vrchat.com/docs/debugging-udon-projects

You could also try adding udon debug logs to make sure that things are happening when you expect them to

[slate orchid]

i got it working but....the particles goes off a good few sec before the ani

[grand temple]

you can use sendcustomeventdelayed to delay things

[slate orchid]

shouldn't i have everything done in udon instead of turn stuff on and off in the animator

[grand temple]

depends how you want to do it

[slate orchid]

is there a easy code to toggle a bunch of verbal's at once

[grand temple]

if it requires a bunch of complex timing and moving objects to specific places, it's easier to do that in an animator. But if it's just enabling and disabling some objects that's easily something you can do in udon

[slate orchid]

yea i am just disabling some objects

[grand temple]

you can create a Gameobject array (it looks like Gameobject[]) and that can contain multiple gameobjects. In your udonbehaviour, you can use a "for" node to loop through that array and apply some change to each of those objects individually

[slate orchid]

so all iwant is for the audio to play amd then the mesh and collder turn off and particles turn on

[civic birch]

I got it! I got it!

[grand temple]

do you know what the issue was?

[civic birch]

I essentially needed to negate the bool that was keeping the object inactive

[grand temple]

that... doesn't make sense but ok

[civic birch]

Odd... it isn't giving me the option to edit interaction settings

[grand temple]

do you have an interact event?

[civic birch]

Added it oops

forgot this was just a custom event

How do I remove interactability from an object?

[slate orchid]

@grand temple this worked but i just need to workout when i push it again go goes back to it's default state

[edgy sparrow]

Nice, thanx a lot ! :)

[civic birch]

Hmm, I can't seem to be able to interact with TCGum when testing

Do I have something set wrong?

[civic birch]

nvm fixed

[civic birch]

Still need to do this tho

[grand temple]

enable disableinteractive

[civic birch]

Tysm

[civic birch]

Is that for the object itself or the UdonBehavior?

[grand temple]

it's a node that affects the udonbehaviour

[civic birch]

Am I missing a piece?

Wait found it I think

[grand temple]

weird to use unarynegation like that, just use a const bool

[slate orchid]

@grand temple can i get some help about setting everything back after pushing the toggle again

[grand temple]

ahhh I should really be going to sleep 😪

[slate orchid]

oki sry

u should sleep

[grand temple]

try searching google or this channel for previous questions and answers

[slate orchid]

hi is anyone able to help me

[civic birch]

I don't need this info right away, but does anyone know how to make an object work as an avatar pedestal without showing the preview image? Could this be done just by Udon or can a pedestal activated remotely accomplish the same?
I plan on making this a toggleable easter egg

[slate orchid]

can i plz get some help

[indigo finch]

Trying to get a raycast to work (just a simple gun), but for some reason this script seems to crash after the first shot

I wanted more info for why it might be crashing, so I did it in udon#, but this one doesn't crash, but it seems to be working... kind of. there is a massive delay between shots, and/ or it almost seems like I have to move the gun around like I have to dodge the old collider. unfortunately, there are no error messages... any ideas what I'm doing wrong?

[indigo finch]

It shouldn't need a const bool value, and wanted to setActive to false not true. Did realise I didn't check if the raycast hit anything on the udon graph, and thus it might have been crashing if it didn't see anything, but that doesn't explain the weird behaviour with the udon# script

perhaps somethings wrong with the use in the world... eh, tomorrow's problem

[blissful shore]

I'm in a world of udon hurt my self trying to make a spacechip fly

[blazing hedge]

"attach to me" package works when "I build and Test" when I try to publish the world I get this Error ... PLZ HELP!

[elder peak]

does this error stop the build/upload?

[blazing hedge]

its doesnt allow me to type my worlds name n click on publish button ]

[elder peak]

do you have Error Pause in your logs enabled? if so, disable that

[blazing hedge]

how do u do that?

[elder peak]

look at the console tab, there is a button with that label

[blazing hedge]

It worked ❤️ Thank u

[elder peak]

nice! you are welcome
what happened: you had a false-positive error caused by vrchat's sdk going to play mode but player contexts were invalid there thus the scripts failing and if you have the error pause on, it will somewhat halt the upload, a bit silly

[blazing hedge]

ikr hahah thanks to u mate

[pseudo pelican]

Why do Udon# scripts sometime close up like this?

Unity restart fixed it

Weird bugg

[high mural]

how can i get/set the public variables from the VRCWorld component in udonsharp?

[grand temple]

the scene descriptor is not exposed to udon

[high mural]

so it's not possible to adjust a player's walkspeed in-game?

[grand temple]

you can adjust that, but you would not do so through the scene descriptor

you would do so by getting networking.localplayer and setting runspeed/walkspeed/strafespeed

[high mural]

cool i'll try that thanks. can you also get the player avatar's height like that?

[grand temple]

the script on the vrcworld that does that is simply an udonbehaviour which applies settings like any other udonbehaviour can

depends what exactly you need. You can get the player's bone positions or tracking data and compare the distance from root to head

though if they crouch it will be inaccurate

[high mural]

well i saw these mirror buttons that adjusted in height depending on the height of the avatar you were currently using. i wanted to try and recreate that myself in udonsharp

[blissful shore]

I'm stil working on this one @grand temple . All the ship does now is float in space (its kind of Calming actually) how ever grabbing the flight stick and pulling the trigger does nothing.

[grand temple]

you're not doing anything with the slerp

[blissful shore]

what should I put on slerp? how do I utalise it ?

[grand temple]

A is where you're slerping from, B is where you're slerping to

you want to slerp from the rigidbody's current rotation to the pickup's rotation

that will give you a resulting quaternion that you can then take and plug into a rigidbody move rotation node

[blissful shore]

ohhh ok like this?

[grand temple]

use A and B inputs

[high mural]

how do you transfer ownership of an object to another player in udonsharp?

tried this but got an error
Networking.LocalPlayer.TakeOwnership(transform.gameObject);

[blissful shore]

are we there yet? @grand temple

[grand temple]

you're using a and b now, but they're going in the wrong direction. You want to slerp from the rigidbody's current rotation to the pickup's rotation. So you need to flip the A and B

[grand temple]

Use Networking.SetOwner