udon-general

[compact stirrup]

I have a fixed update that moves a platform, but I only want to move it OnPlayerTriggerEnter, I have a bool variable but I can't find anything to set it

oh, let me see if I can find them

[unborn hornet]

Drag tha variable name onto the graph for the get node

[compact stirrup]

right

oh I see! when dragging with ctrl it's a setter

[unborn hornet]

Indeed

[compact stirrup]

thanks!

[livid beacon]

I'm having a really weird problem

  An exception occurred during EXTERN to 'SystemInt32.__op_LessThan__SystemInt32_SystemInt32__SystemBoolean'.
      Parameter Addresses: 0x00000036, 0x0000001D, 0x0000001B
  
  Cannot retrieve heap variable of type 'String' as type 'Int32'

I have no idea why the heck this would possibly cause an error

[compact stirrup]

Are you trying to store a string of an int into slice somewhere?

[livid beacon]

No

No strings

It is set by two things

[pure harness]

Is there any kind of drawback to using Udon Sharp rather than using the graph?

[mighty fjord]

@livid beacon Have you tried adding a constant integer and connecting it to the 'Set slice_counter' node instead of having the '0' be directly in it?

[livid beacon]

WTF

That worked

Why does that even matter?

[bleak widget]

Udon bugs work in mysterious ways

After a while, you start getting used to a lot of them

[livid beacon]

Are there any other bugs I should know about?

[unborn hornet]

Yes.

[livid beacon]

so uh question

are uh

are while loops broken too?

It's getting in an infinite loop somehow

and I've made sure to actually confirm that the condition does eventually become false

through the power of debug,log

[wheat rover]

You using U#?

[livid beacon]

no

[wheat rover]

Well, try sharing your noodles.

(Screenshot 'em)

[livid beacon]

noodles is a fitting name

[void ridge]

(udon is a type of noodle)

[wheat rover]

How about the part that, presumably, increments slice_counter? There any conditionals for it or anything?

[livid beacon]

like I said, noodles is a fitting name

the purpose is to set exactly 3 random items in a boolean array to true

I've tried adding a debug.log at the end and confirmed that the slice_counter does in fact go up to 8

[mighty fjord]

Been having issues with while loops aswell, so I decided to pass on them for now

[bleak widget]

Those aren't noodles. That is spaghetti

[livid beacon]

yeah

spaghetti code

it really is a fitting name

[wheat rover]

It goes all the way up to 8 even though it's supposed to end after 3...? Yeah, that's weird.

[livid beacon]

exactly

alright time to write some real shitcode

well

noodle

welp

so my solution was a for loop that loops a billion times with an if statement to only run the body if the number is less than 3

is it shitcode?

yes

[mighty fjord]

Try checking ever loop to see if the int is less than 3, then assigning a boolean if it isnt, and then also use that bool for the while loop.

[livid beacon]

but does it work?

also yes

[wheat rover]

Yeah, what Nestor suggested may work better.
Alternatively you could set what ever the for loop is reading from/incrementing to the end value when the check fails as well

[celest olive]

Uh question. How would I go about making interactions trigger a specific animation in udon?

This kinda doesn't want to work actually.

The animator for that object is set up like this. Transitions are actually empty, but I have no idea how to properly work with those from code..

(also the top Set isOpen is obviously on false. No idea why it set itself back to true..)

actually I guess I can do that

[fickle swift]

You would need a transition going the other way from idle and have a animation trigger that you tell UDON to make happen.

[celest olive]

Mhm. What function is that actually? I guess I can access the animator's variables through code somehow..

And then just have it natively react to that as by transition rules

[fickle swift]

I think it’s SetAnimationTrigger

[celest olive]

Mhm. I'll look into that! Thanks c:

[fickle swift]

You have to select animatior first

[fiery yoke]

Animator.SetTrigger(string name)

[fickle swift]

Yep

That

If your doing UDON# that is.

[fiery yoke]

Well there is no good notation for Nodes

[fickle swift]

True

[fiery yoke]

Animator -> SetTrigger
Expects:
string

That maybe

[fickle swift]

Na. The other way it probably how I’m going to do it from now on.

[fiery yoke]

But all of that information is bascially in
Animator.SetTrigger(string name)
as well

[fickle swift]

The this -> that way sucks

[fickle swift]

Yea

[pseudo parrot]

Is there a working Panorama script for UDON yet?
Kinda wanted to add some Event posters in my world.

[livid beacon]

aaaa why is udon so goddamn buggy

[dapper lion]

its is a new technology

[livid beacon]

I'm gonna try this u# stuff

[fickle swift]

That’s the best idea XD

[dapper lion]

good plan

[pliant spade]

Can some one help me with triggering a model animation

Please

[jagged crow]

when a user joins an instance will they be sent all the synced variables?

or do I need to code that in manually

[wheat rover]

You have no control over synced variables being...synced. I believe they'll get them all the next time they're synced normally (which should usually be shortly after they join)

[unborn hornet]

Synced variables are transferred automatically.

[jagged crow]

no way to trigger a sync "early"?

[unborn hornet]

Nope.

[jagged crow]

mk, that simplifies things I guess

[unborn hornet]

You can detect or read synced variables changes (the 5-10 times/second) using the OnDeserialization event.

That runs for every non-owner of an object each time they receive a "sync update"

[jagged crow]

ooh

that would probably be better than doing it on update

[unborn hornet]

And anytime an owner is sending a "sync update", the OnPreSerialization event runs.

[pseudo parrot]

Is there a working Panorama script for UDON yet?

[fickle swift]

Only if you want to make it!

[keen imp]

When will TextMeshProUGUI be added this should have come with the introduction of TextMeshPro there is no reason for it to not be there its identical

https://feedback.vrchat.com/vrchat-udon-closed-alpha-feedback/p/add-textmeshprougui-to-the-whitelist

[fickle swift]

Anyone happen to know how that among us game routes the voice chat to the lobby?

[keen imp]

Ask Jar

[fickle swift]

👍🏼

[pliant spade]

Can i make it so when the animation is done it sets the bool back to false?

[rancid cedar]

So in SDK3 has udon replaced stuff like "VRC_Trigger"? Im following a simple tutorial and got to the step about making a toggle mirror and am missing components that he uses

[scarlet lake]

follow this tutorial, sdk3 don't have VRC_Trigger so yeah
https://youtu.be/ibDu0dCeUE8

[rancid cedar]

okay cool

[pliant spade]

I made a button that plays a animation in my world but it keeps looping the animation, can someone please help me

[mighty fjord]

You can turn off animation looping on the animation clip itself through your assets

[pliant spade]

I know that but i want the bool to go false when the animation is done

[mighty fjord]

I wonder if it's possible and viable to do animation events in Udon...

[rancid cedar]

So Udon seem pretty straight forward coming from UE4, but I'm having an issue where my public variables look like this and i can't assign anything to them

[mighty fjord]

Have you put that script on a game object PottedFox?

[rancid cedar]

i have, should i do it after?

oh i got it

yeah i didn't assign the right one lol

[pliant spade]

It loops

I don't know how to fix that

[rancid cedar]

I've not messed with animations enough Ocublox, ill be interested in what the fix is though

[mighty fjord]

Could possibly set up a small timer that keeps the bool parameter on for a bit, and then the animator state goes to the animation and then goes back when it's done

[rancid cedar]

Whats a good number of batches to have in a world?

[serene shale]

do the player audio mute/unmute cubes not work in the UdonExampleScene?

spun it up in a local build instance with 2 clients, and nothing happens with the voice audio when I try to click them

[fickle swift]

Looks correct

[scarlet lake]

sorry for tagging but any update on this? im packing data in my program into synced strings currently, and sometimes it produces invalid utf16 sequence which causes the utf8 encoder to restore incorrect values once its gets synced (replaces chars with 0xFFFD). im at a loss to try and prevent this on my own

[fickle swift]

It is

[fickle swift]

Give me a few min and I can send the script I use for animations

[pliant spade]

k

[rancid cedar]

is there a node to set the position of a game object? struggling to find what it might be called

yeah totally lost on this one, cant really find much info

[mighty fjord]

It's under 'Transform'

[rancid cedar]

figured it out

ty though ❤️

[cunning mist]

@pliant spade Have you figured out the looping yet? The animation file itself has a bool you can check in the Inspector that toggles it's ability to loop.

[fickle swift]

Then I have a transition that happens on TryUse

[cunning mist]

I highly recommend using Snipping Tool in order to get clear screenshots 👍

[fickle swift]

Yea. My PC doesn’t have discord on it right now.

That’s a task for later today XD

[cunning mist]

Unfortunate haha

[rancid cedar]

Is there anything obviously wrong with this? Apparently an object isn't set to an instance of an object

both variables are set to public

[fiery yoke]

But have you also populated the variables with objects in the Inspector? :P

[rancid cedar]

no because it won't compile and give me the fields to fill lol

do you have to set them before you continue with the graph?

[fiery yoke]

The graph compiling and udon running are two completely different things

You should be able to compile any graph at all times without any errors

[rancid cedar]

Well that's the issue im having, hitting compile on the graph throws an error

[fickle swift]

I see nothing wrong with it.

Can you show us the full graph screen?

[rancid cedar]

well thats no good

sure ill take a gif because the error icon is strobing now lol

https://i.gyazo.com/1fc5ae0f42ac11880802daee8f13caff.mp4

[cunning mist]

So here's what you do
Delete your graph and remake if from this screenshot
🤷

[rancid cedar]

dab

[cunning mist]

As well, you can just use public Transform variables instead of gameobjects, then you don't need to be grabbing the transform variable everytime

[rancid cedar]

alright ill try to remake it lol

remaking the graph and just using transforms worked

who knows lol

[raven peak]

Curious if the get transform from gameobject is bugged. Would be something to write a canny about.

[mighty fjord]

Hey, is it possible to make custom Udon nodes, like functions I might use somewhat often?

[raven peak]

Custom event node.

[mighty fjord]

As in setting up an object with said custom function on it and then sending a custom event and information to it whenever I want to use it?

[raven peak]

no udon doesn’t natively support that yet. If you use udonsharp there are some work arounds to do that though. You can also use nonpublic variables to set the values before you call the event.

Then use those values during the event.

[mighty fjord]

Yeah, but my main point is to clean up my graph a bit.
Does anyone happen to know if sub-graphs are still supported?
https://ask.vrchat.com/t/subgraphs-nested-graphs/214

[cunning mist]

They dropped it a while back while redoing things, it will be coming back just not at present.

[mighty fjord]

Ah, thank you for letting me know. ^^

[raven peak]

I just want the udon network update 🥺. It looks so nice so far.

[cunning mist]

Same, is big nice, though Dan's entirely redoing ownership, so it may be a couple more months...

[raven peak]

Personal estimations would be first quarter 2021.

[pliant spade]

No @cunning mist

[mighty fjord]

Oh hey, that sounds intriguing, where could one find information regarding it?

[pliant spade]

Why

[cunning mist]

Did unchecking loop work?

[pliant spade]

No

[cunning mist]

Unfortunate

[pliant spade]

I need to make it so the bool gets set to false

or it loops

STOP

[cunning mist]

You should be safe just using a trigger instead

[pliant spade]

JUST LEAVE

[cunning mist]

Literally none of us are mods, do this in General

That usually works

[pliant spade]

Just leave the server

wtf

[cunning mist]

@ripe musk Again, #vrchat-general-2 is where you probably want to try

[pliant spade]

...

[raven peak]

That was fun.

[pliant spade]

NO

[cunning mist]

Dammit Helper

[pliant spade]

Not helpful

[fiery yoke]

Sorry but this is just toxic. Slightly amusing yes. But mostly just toxic.

Thanks. I guess

[pliant spade]

😠

@cunning mist How do i get up a trigger

[raven peak]

Like a collider trigger? Or different trigger.

[pliant spade]

I just want a button that plays a animation in my world

[cunning mist]

Use a Trigger variable instead of a Bool, than instead of SetBool use SetTrigger. Have an idle state you go out if using the trigger, than a transition out when the animation ends.

[cunning mist]

Yeah Jet that was on a previous conversation

Ooo Linux

[pliant spade]

|: |

[cunning mist]

What are you running?

Nah for linux, recent build or just something you're used to?

[fiery yoke]

Aww

[pliant spade]

omg

[limber shard]

Hmm.

[cunning mist]

The world may never know

[fiery yoke]

I was just starting to enjoy that shitshow

Guess they got what they wanted

[cunning mist]

Anyway yeah do the trigger thing

[raven peak]

I wanted him to be kicked instead. Rip.

[fiery yoke]

so win-win

[fickle swift]

Darn

[void ridge]

Figuring out teleporting players around. Seems like the essential node is Vrcplayer Api Teleport To, but I can't create that in my graph. Where did I go wrong?

[mighty fjord]

Is it not under PlayerApi > Teleport To?

[void ridge]

Hmm ok, that found it. I typed "api" to find that. But typing "tele" found nothing 🤔 I guess the search feature is more fiddly than I thought. Will have to get used to it. Thank you

[fierce verge]

Hello, Im trying to make a large video screen but even when using the prefab the video quality is really bad. How do I fix this??

also tried @cunning mist 's video but still the quality is quite bad even when set to 2160 or 4K

[cunning mist]

I haven't been able to make anything above 1080p work personally, I have no idea how to enforce a higher resolution. It seems to be dependent on your internet connection.

[fierce verge]

I have quite a solid internet connection, but small plane or big plane, 1080p or 2160p its al quite bad 😦

[serene moat]

YTDL maxes out at 720 usually, you can't really get around that if you're using YouTube since YouTube doesn't serve formats compatible with VRC that go above that most of the time. If you host your own 4K video it might work, though you might start lagging people out if the decoder needs to work for it.

[fierce verge]

hmmm, Im trying to make a screen like in the VOLT club, how would I do that then if only 720 works

[serene moat]

VOLT uses YouTube so it has the same resolution limitations

[fierce verge]

hmmmm

thanks 🙂

[dapper lion]

try using off shore links such as streamable or vimeo to go over the youtube plugin limitations ( assuming thats what you mean) @fierce verge

[fierce verge]

I will try, thanks!

[mighty fjord]

@pliant spade I believe found a solution to your problem. Though I still firmly believe the best alternative would be to use an animation event.

(Had to use LateUpdate since I was already using Update for a thing)

Animator setup is just Entry to an Idle state, then if the PlayAnim bool is true, it proceeds to the animation, and then if that bool is false, it just goes back

[cunning mist]

What in the

[jaunty schooner]

Can anyone tell me why this trigger doesn't seem to be respawning the player?

The trigger is in the sky and is huge and thick enough that any player hitting it ought to trigger it.

And the respawn point is VRCWorld's transform, which is right here:

But the script doesn't seem to work at all.

[floral dove]

You have the target Transform set to 'self'

You've got to double check your variables when dragging and dropping to create them.

[jaunty schooner]

What is Self then? I just assumed Self meant Self.Transform of the VRCWorld object.

[void ridge]

I think they mean this bit?

[jaunty schooner]

Yes, but I meant, what is that Self object? What's it referencing? I click it but it doesn't highlight anything in the heirarchy.

[void ridge]

"Self" in this context is your SkyTrigger object, if I understand correctly

[floral dove]

@jaunty schooner - you want to set that to be the VRC World transform.

Right now, your graph will teleport the player to the position and rotation of the Trigger Collider

[raven peak]

By default transform properties in udon will reference the gameobject transform the udonbehaviour is attached to.

[jaunty schooner]

So the skytrigger was teleporting players to the skytrigger? Hmm well, I suppose that location would be hard to tell if it was actually doing anything...

@floral dove How about their velocity? This trigger is because the world has the player yeet script. They will be moving fast. Should I instead teleport them below the ground or will the teleport zero their velocity? Or is there a way for me to zero the velocity myself?

[raven peak]

That depends on the player yeet script. If it stops when the player touches the floor it should be ok.

[jaunty schooner]

I have no idea what it does, but I would have just assumed it adds velocity to them and then lets the wind take them where it will.

So you're saying a teleport will not zero the velocity for me. So I should probably zero that.

[raven peak]

The script can continuously set the players velocity. If it doesn’t that then setting it to zero will do nothing. Teleporting should set velocity to zero.

[jaunty schooner]

Yeah but I see no reason for it to function that way. If they did that they'd have to like simulate gravity and such, and it would just be so much easier to set their velocity on release.

But just in case, since I don't wanna re-upload the world again cause it takes forever, I set it to zero anyway:

[void ridge]

nothin' wrong with a little redundant code once in a while 😛

But it sounds to me like this still misses jetdog's point. If you're setting velocity to 0 on that event, the velocity might still get updated (on the next frame?) if the script is still running

The only way to be sure what will happen is to know what the script is doing. However, it does sound like a pretty fair guess that it wouldn't be updating velocity continually

[jaunty schooner]

Sure, and I understand that. If the players behave weirdly, I'll check that in that case.

[unborn hornet]

I had a discussion with someone about that when working on my tv prefab... can confirm ytdl doesn't return good res links, but vimeo and a couple others seems to be able to provide high res videos. I tried with an 8k nature video from vimeo and it seemed to be at much higher quality in general.

[serene moat]

Yes other services work for that, but they also cost money to be reliable or store more than a few GB of video.

YouTube splits the streams into two different ones for audio and video when you get above 720 and you need to mux them together to have it work, which the video players can't do easily

[raven peak]

There are some youtube videos that send below 720p videos. Not sure what dictates those situations.

With avpro you can grab the texture resolution to make sure what it is.

[jaunty schooner]

It just occurred to me that the player velocity couldn't be being reset when I use teleportto, because if it were, then I would not have seen the players hit the collider above the trigger (failsafe) and then continue to slide along it and off into oblivion for a minute or two. So either Jetdog is correct about the yeet script controlling the velocity, or he's incorrect about it resetting the velocity when you teleport a player. I'm kinda inclined to think it's the latter cause it doesn't make a lot of sense for the yeet script to bother simulating movement when setting one variable would do, and it would sort of make sense for VRChat not to reset a player's velocity when they're teleported because there's many cases where you would want that velocity to be retained, like if you were emulating Portal.

Anyway I just uploaded a new version of Big City which is the world I have this stuff in, so I guess I'll find out if the teleporter works later this evening when I hop on!

[raven peak]

Im sadly currently away from my pc so i cant check at the moment.

[scarlet lake]

What is udon?

[raven peak]

#udon-info

[serene shale]

are the mute player cubes working in the UdonExampleScene? testing with multiple clients and the voice falloff doesn't change, fresh scene.

[hardy fog]

Can the master of a world teleport another player if they have that player's id? Or does a player have to teleport themselves?

[fiery yoke]

A player has to teleport themselves

[hardy fog]

Thanks

[fiery yoke]

but you can always send a custom network event to tell them to teleport themselves

[hardy fog]

I only know how to send custom network events to all or master

[fiery yoke]

Yeah that is pretty much the problem

[hardy fog]

I could sent it to all, and then only actually do it if it's the right person.

send*

[fiery yoke]

But how do you locally determine the "right" person? :P

[hardy fog]

Lol

[Udon_synced]

I have an idea, I'll come back if it works/breaks

[fiery yoke]

well mixing synced vars and network events is usually a pretty bad idea...but good luck

[hardy fog]

I ended up sorting a player list from low player id to high, then using the fact that all clients will have the same players at the same indexes of their versions of that list to send players. I generate a random number from 0 to the number of players in lobby, then teleport the host if the host is the client, and the one we're sending. If we are sending the one who is clicking the even I have them teleport themselves. If we are sending a player who is not the client, we broadcast a message to all called send+index of target player in playerList which means we have 12 functions with only a different number at the end of their names. Each function checks if this client's localplayer id is the player id opf the corresponding player in that index of playerlist, then if ithat is true they teleport themselves.

[fiery yoke]

The first part is true until you realize that while sending an event another player could join. An edge case, but it might happen, depending on the frequency.

[hardy fog]

If another player joined while the event was sent, I think it would just add them to the end of the array, and not change the order of the other players

[fiery yoke]

Ohh

I meant leave

sorry

[hardy fog]

Yes

That would break it

hahaha

[fiery yoke]

Yeah there is no way to make anything perfect currently. And generally in Networking you have to accept certain uncertainties

[hardy fog]

We could put a counter, and if it is unresolved after trying twelve players, have it generate a new random player

Because would it break if they left? I guess it would try to send a message to have them teleport.

But they wouldn't get it

[fiery yoke]

No if a player leaves then your ordering gets messed up

[hardy fog]

I'm only calling a function on a player if they hear an event

So if they are missing, they just don't hear it

[fiery yoke]

Thats not what Im talking about
Players A B and C are number 1 2 and 3
You want to send a message to player B
So you send message to player 2
Player A disconnects
Now player B is 1 and C is 2
C receives the message because they are player two.
And suddenly you teleported the wrong player.

[hardy fog]

Okay

I'll have to think about that error

[fiery yoke]

I have

for a while

and you cant solve it I think

At least not with events alone

[hardy fog]

Well

My check is based on the playerId, not their index in the array

So they wouldn't have a match with the player we were trying to teleport

[fiery yoke]

Then you need an event for every single id that might ever exist :P

[hardy fog]

Yes

Yes

Yes

Yes

12 times

[fiery yoke]

That could potentially go into the hundreds

[hardy fog]

Well no

[fiery yoke]

at least if you want your stuff to not break

[hardy fog]

Because I reference it through the index of the array

so I cut it back down to only 12

[fiery yoke]

But thats exactly the problem

if you have an index to an array then you need to guarantee that the array locally looks exactly the same from when you send it to the remote when they receive it

and that simply isnt possible

[hardy fog]

The random number is array index, but it only resolves if the playerId's match

[fiery yoke]

match to what?

[hardy fog]

Yeah I just sorted it from low to high

so it always matchs

[fiery yoke]

Do I have to repeat myself?
If one player leaves in-between sending and receiving the message...then you get a problem

[hardy fog]

I remember that, and I'll watch out for it

It might be something I have to live with for now, if it even happens with my system which I don't think it does because no two players should ever have the same playerId

I think if someone left and another player was sorted into their element in playerList, the if statement would return false, and nothing would happen. Which would mean I teleport no one.

People are having matching player Id's on my local tests. Please tell me that's not true on published worlds lol

[fiery yoke]

Every client that connects should increment the player id

maybe that doesnt happen locally not sure

[hardy fog]

On master it works as expected, but on all other clients it lists playerId 1 as playerId 2

I'll test on a published version to be sure.

[hardy fog]

It works for all but the first and second players who have the same playerId for some reason.

[wooden turtle]

Anyone know why I can’t create avatar it says no asset bundle has been set

[open lion]

you'll want to ask that in avartars 3.0 gabe

[hardy fog]

To fix the edge case of a player being teleported while they quit, I'll have the master wait for a confirmation from the player that they teleported themselves, then teleport another random player.

[fickle swift]

Don’t be cross posting issues. The mods don’t like that XD

[wheat rover]

Also playerId isn't consistent between clients. I had problems with this before myself, finding that playerId is in fact not a good way to track players across clients.

The only way I found that was consistent was object ownership

[sand anchor]

Does anyone here know the link to the DalekHQ discord server

[hardy fog]

Thanks for the advice. I'll start thinking about how that could work.

[wheat rover]

The way I have it is an array of objects that the master will give to players as they join.
To mark them as used I would use a bool array...but we know arrays aren't synced, so I use an int with bitwise operators to encode bools as a bit in the int instead.

But, object ownership resets before onleave so clearing it is hard...
my method wound up involving also tracking the ids of the players who own them, locally un-synced, to use to figure out who left.

Networking with Udon is hell.

[unborn hornet]

Does OnPlayerJoined run before, after or indeterminately of the player receiving buffered events like ownership updates?

[grand temple]

@wheat rover no, player ID is absolutely consistent between clients. I have complex systems that rely on this.

Every player that joins will get a new playerID. It starts at 1 and just keeps going up. It never reuses numbers if someone leaves and rejoins

[wheat rover]

Huh. Well then.

[grand temple]

You can try it out, it's at vrcprefabs.com/browse in the udon section, "simple object pool" it assigns a unique object to every player in the instance

[wheat rover]

Guess my battle is somewhere else with networking then.

[grand temple]

By default, it will give ownership to the player it is assigned to. But there's a much cheaper mode that doesn't transfer ownership if you don't plan to use synced variables. It's great if you need some way to identify players, put them into groups like teams, or do anything interesting with voice range.

[hardy fog]

I can take screenshots of my world assigning multiple users the same playerId

Admittedly, it might have been my fault. Although I'm not sure how bad I'd have to mess up to modify a read-only value

[grand temple]

Just do onplayerjoined > debug log player name and player ID

[hardy fog]

Where can you view the debug log while you're playing? Is there a part of the docs that says how to do that?

Right. It does unique playerIds for the master client, but for the other players who join it. Well I'll get a screenshot

[grand temple]

There's a series of keys I don't remember, I don't use it. Usually I use the unity editor console because udonsharp has a built in log reader that automatically pulls logs into the console from whatever vrchat instance is running

If you're not using udonsharp, you can still add it to your project to get the log reader

Just enable it in project settings

[hardy fog]

Thanks, I'll read about logreader. I love udonsharp

Helps so much to do it in C# syntax

Here's the master's view

And the second player's view

So when player 2 teleports a player one, they both teleport.

[grand temple]

Wait when you say player ID are you talking about their index in the playerlist? Because yes that's all over the place. I mean vrcplayerapi.playerid

It seems like you're just getting two references to the same playerapi. I assume this is an array, how are you populating it?

[hardy fog]

https://github.com/jsusher/playerlist-vrc

Here's my actual code, too

Onjoin and onleft I use VRCPlayerApi.GetPlayers(playerList), then I sort playerList by lowest playerId

Oop. I just doxxed myself.

[hardy fog]

By playerList do you mean the one I declared myself? Yes that is allllll over the place lol, but after being sorted it should be concurrent

[grand temple]

It sounds like an issue with your sorting but it's too late at night to comb through that lol. What I can say for sure is that you will have a problem with "invalid" playerapis, which are players that have left. If you try to access anything about them, your script will crash. But they won't be null either so the only way you can deal with them is onplayerleft, look through your arrays and set those elements to null. If you just run getplayers again, it will not remove invalid playerapis. Which is why some people opt to just recreate the array from scratch every time a player joins or leaves. Something like

playerList = new vrcplayerapi [vrcplayerapi.playercount];

[hardy fog]

Honestly I cannot thank you enough. I was wondering if GetPlayers completely overwrote the old array or not, I'll try clearing it first, and update you tomorrow.

[fiery yoke]

Well it does

sort of

[grand temple]

This is entirely personal preference, but I prefer to avoid getplayers entirely. This is what I use instead, keeping the same array and manually adding and removing players each time

    VRCPlayerApi[] allPlayers = new VRCPlayerApi[80];
    public override void OnPlayerJoined(VRCPlayerApi player)
    {
        for (int i = 0; i < allPlayers.Length; i++)
        {
            if (allPlayers[i] == null)
            {
                allPlayers[i] = player;
                break;
            }
        }
    }
    public override void OnPlayerLeft(VRCPlayerApi player)
    {
        for (int i = 0; i < allPlayers.Length; i++)
        {
            if (allPlayers[i] == player)
            {
                allPlayers[i] = null;
                break;
            }
        }
    }```

If you wanted to add sorting logic to this, you could just do a basic insertion sort per element rather than resorting the entire thing every single time

[fiery yoke]

GetPlayers probably only overwrites the elements in the array provided that are necessary. So if you have 4 players and the last player leaves it will write the first three elements of that array, but the last element will still be written to from last time. If this is the case then you should only get an invalid playerapi if the last player that joined left, and if any other player left, the last player should exist twice.
Just my speculation tho.

If that is the case then writing null to index of playercount should fix that

[grand temple]

That sounds correct, but also jank like that is why I don't bother with getplayers haha

[fiery yoke]

Well the intention was to avoid allocations

which youre not doing when you create a new array every time

The question is: Does it really matter...

[grand temple]

Yeah I can see why they didn't make a method that returned a new array every time, it's better but also if they're not clearing the null elements that's problematic

[hardy fog]

When I do it, I'll keep the same array and just assign/remove players from it

[fiery yoke]

Well you cant do that easily

[grand temple]

Why not? That's what the code I just posted does

[fiery yoke]

The best algorithm for that is "null gapping" which just searches for the first null element

Worst case the lobby is full and one player leaves and reconnects constantly

in which case you have to search the entire array from start to end every time

ofcourse in this use case thats neglectable

[grand temple]

That's a whole lot cheaper than re-assigning the entire array every time

[fiery yoke]

Yeah. Just saying that its not a solution that will work in all circumstances.

But probably most

Especially in Udon

And also that will completely jumble which player joined when

So if that is important then you need another method

[grand temple]

If you need sorting, you add an insertion sort to that. If you need cheap, that's already cheapest. Not sure what situation it wouldn't be best in

[wheat rover]

That code you posted will also fail to track any players that joined before you.

[fiery yoke]

No it doesnt

[grand temple]

No, when you join you get spammed with a bunch of onplayerjoined

[fiery yoke]

thats the lovely part about OnPlayerJoined

Since from your view everyone is joining you

As there is no "host"

[wheat rover]

Oh.
That's kinda stupid honestly

[fiery yoke]

Its actually not

Youre not joining someone

[wheat rover]

You are joining a lobby, though.

[fiery yoke]

There is no lobby

Matrix quote

[wheat rover]

Yes, there is a lobby.
The lack of a central host doesn't mean there's no lobby...

[fiery yoke]

VRChat works on a P2P-based system

Everyone is connected to everyone through a middle man

[grand temple]

You still need to instantiate their player objects in your client. At some point, you need to receive the message that they exist. And that message is onplayerjoined. Maybe that's not the best name, but it is very useful to what is actually happening

[fiery yoke]

I think its a good name

[wheat rover]

OnPlayerStart would make more sense as a name than OnPlayerJoined then. Oh well.

[fiery yoke]

The player joins your view of the world

In fact

you can join an instance without other players joining you. In case they are on a different branch.

You will technically still be connected to the same instance over photon, but you wont receive any of the player controlled data.

Since you are on different network builds

[verbal socket]

Is there somewhere a code i can copy paste for a udon code for playing a viseme anim when a button is pressed and when its pressed again the anim is played in reverse

@me when answering

[compact stirrup]

I have made an udon behavior and inside the behavior I have a non-public bool variable. I've set the default value to true, but when I repoen the variable file, it sets the default value back to false, this is incredibly frustrating and I've had it happen multiple times, with script variables, and also boolean node boxes inside the script logic itself, anyone else experience this?

it's also not saving my preference of sync type either, reverting back to none

[fickle swift]

I dont know what I'm doing wrong. But I'm trying to set the Voice audio of a single player to be heard by everyone in the world not that large. But for some reason its not working

It doesnt seem to be doing anything and you can only hear them at the default distance

[cunning mist]

While I haven't played around with this system much myself, you'll likely have to set it up to be global, as right now the system is just telling you to play your own voice further. As to how you would network that I'm not experienced in getting a player variable globally.

[verbal socket]

why do my reflection probes turn black when i bake em ?

[unborn hornet]

For posterity, the in-game command is right-shift+`+3, but it requires the paramters --enable-debug-gui and --enable-udon-debug-logging in the launch.bat file for VRChat.

Damn, how does one escape backticks...

Got it. wew

[normal yarrow]

Hey there, so I'm trying to play a YouTube video on the VRC Unity Video Player component, but I notice it doesn't play at all when the map loads.

Anyone know what might be wrong?

[fickle swift]

Hmm. I’ll play around with it.

[normal yarrow]

It won't play YouTube URLs but videos from self-hosted sites seem to work.

[dapper lion]

@normal yarrow seems fine, have you tried using the example prefab in the vrcsdk examples folder?

[normal yarrow]

Yes

[dapper lion]

hmm, tried other video links?

[normal yarrow]

I noticed these errors

[dapper lion]

it may be a url that is blocked or requires payment to watch

try a different url and see if work

[normal yarrow]

Hm.. tried a different one and got the same result.

[dapper lion]

same errors too?

[normal yarrow]

Yep

[dapper lion]

and youve uploaded this world to vrc and got the same problem? (just making sure if it needs the server or not)

[normal yarrow]

I've done build tests and it didn't play there.

[dapper lion]

well usually what ive seen causes it to not play is because it needs the server to pull from, but testing and playing it in unity will obviously not pull from a server

so if it works when its uploaded, then that was the problem, if not. it may be either the link or the video player not pulling anything at all

[normal yarrow]

It's weird cause I can pull and play videos from my own site (server hosted elsewhere)

[dapper lion]

ah, so try streamable.com

[normal yarrow]

I would but videos won't stay there forever.

[dapper lion]

with the same video, if its less then 10, you can just convert

[serene moat]

YouTubeDL does not exist in the editor, so you cannot resolve any URL's that are not direct links to the files

[dapper lion]

streamable links stay for 6 months

[normal yarrow]

Ahh

[dapper lion]

that is correct as well

[normal yarrow]

Is there a way to incorporate it to the editor? 🤔

[dapper lion]

unless you have the plugin in unity

[serene moat]

For VRC, yes if they wanted to. For you, probably not easily without breaking TOS.

[normal yarrow]

Hm.. so I got no way to really test this on editor.

That's unfortunate.

Oh well, guess I'll have to host it off my site.

[dapper lion]

well i mean you could test if th uploaded world method works

[normal yarrow]

I could do that but it would take forever just to test one video.

[serene shale]

this error even shows with merlin's video player after filling out the playlist url field for that reason, works fine ingame :P

[fickle swift]

Messed with it and it still doesn’t work. I doubt it’s bugged as a few other worlds do this.

[olive sphinx]

I'm following the tutorial for running the UdonExampleScene. The VRChat client is not launching when I press "Build and Test"

[normal yarrow]

I notice that this doesn't seem to work in VRChat, is there a way I can have music have reverb to them?

[dapper lion]

@normal yarrow you need a zone

[normal yarrow]

A zone? Hm..

[dapper lion]

and make sure it has "audio listener"

[normal yarrow]

Alright.

How do I properly set up the min and max values?

Do I just max it all the way around the whole map?

[dapper lion]

for areal?

for the whole map, just leave it normal without the sudio source

[dapper lion]

you also need the filter

[normal yarrow]

Got it now

[dapper lion]

you need both if its for player audio and off shore audio

[normal yarrow]

Gotcha.

Actually, I only want the entrance music reverberated.

[dapper lion]

then move the zone by the entrance

[normal yarrow]

(And microphone speaking, but I can't seem to get that done right now since VRC_PlayerAudioOverride doesn't exist for Udon)

Oh wait, so does this zone only need to go over the audio source object?

[olive sphinx]

Well it works now using Steam. VRChat client would not launch with Viveport.

[dapper lion]

it needs an audio source, from what ive see, and override should work

[normal yarrow]

I can't even find that script.

I think they took it out.

[dapper lion]

? ive never used the script, just the traditional unity way of doin it

[normal yarrow]

Ah

[dapper lion]

add the audio listener to the cam, and bend it to your will via that

[normal yarrow]

https://ask.vrchat.com/t/vrc-playeraudiooverride-not-work-with-vrcsdk3/1793

[dapper lion]

ahhhh, yes, i belive it still works

[normal yarrow]

I was gonna use this so that if you're holding a microphone, your voice will project throughout the whole arena, and also therefore reverberate since it would come from the same audio source as the entrance music (ideally),

[dapper lion]

so it was added, i see what you mean now

[normal yarrow]

Or at least an audio source right next to it.

[dapper lion]

lemme send you something you can tinker with

[normal yarrow]

Sure thing.

[dapper lion]

you have messaging blocked

but theres a player audio chnger called " better player audio" and it works with udon, its worked for me for worlds i needed players to be heard accross the room (very big rooms)

[normal yarrow]

Oh wait

Let me fix that

Alright go ahead

[void ridge]

I have two questions and a report

1. What units are velocity measured in?
2. Is there documentation where I could have just looked up the answer to that, and the answers to other specific questions about nodes

[normal yarrow]

Oh hey Joker, lol

[void ridge]

Hey Pablos!

[normal yarrow]

Nice seeing ya here 👍🏽

[void ridge]

I see you're still making wrestling stuff 😄

[normal yarrow]

Haha yep.

Wish I could've gone this far in Rec Room though.

[void ridge]

🤷‍♀️ do whatcha gotta do

[normal yarrow]

Yep

I'm learning a lot about Unity with this though.

[void ridge]

yeah, learning Unity is why I'm here too 😄

[normal yarrow]

It's definitely worth it.

[void ridge]

anyway, let's save the chatting for in-game, I'll DM you my profile-- Back to on-topic:

I have two questions and a report

1. What units are velocity measured in?
2. Is there documentation where I could have just looked up the answer to that, and the answers to other specific questions about nodes

[normal yarrow]

Sure thing.

[void ridge]

and the report is: The "Searching for nodes" link on this page is broken:
https://docs.vrchat.com/docs/udon-node-graph-upgrade
It should be linking to here https://docs.vrchat.com/docs/searching-for-nodes but isn't

[normal yarrow]

https://docs.unity3d.com/ScriptReference/Rigidbody-velocity.html#:~:text=Note%3A A velocity in Unity,and Z defining the direction.

[void ridge]

Hmm ok, this kind of answers me

A velocity in Unity is units per second. The units are often thought of as metres but could be millimetres or light years. Unity velocity also has the speed in X, Y, and Z defining the direction.
But I think to be precise the answer would have to be specific to VRChat, right?

[normal yarrow]

Not really.

It's mostly Unity stuff.

[void ridge]

Same with my more general question about docs. A lot of the particulars about nodes in Udon are going to be unique to VRChat, aren't they?

[normal yarrow]

I think so, but I haven't screwed too much with Udon stuff yet.

[grand temple]

Anything related to players and networking will be vrchat specific, yes. But rigidbodies, transforms, rendering, that's all unity

[normal yarrow]

Well there ya go

[trail shard]

how does the gun grip work for pickups?

[grand temple]

You will hold it with x forward and z up

[trail shard]

also hi phase lol

mine kinda freaks out I'm not sure, what do I need to do to set the actual location of where the grip is?

[dapper lion]

gun grip also does not allow you to turn it in desktop

[grand temple]

Assign an empty gameobject to the gun slot in the pickup

[trail shard]

and then just move it to the grip?

[grand temple]

Yeah

And rotate it so that x is forward and z is up

[void ridge]

I'm using a trigger collider to add some velocity, and it seems inconsistent. Sometimes it adds, sometimes it doesn't. Anyone offer insight why?

[trail shard]

I rotate it on the x axis -90 degrees to get the z axis facing up and x is still forward correct?

[grand temple]

Setvelocity is very unreliable if the player is grounded and the value you're setting is low. It might be more reliable if you set 10 or if you try setting velocity every frame until the player is ungrounded

Normally z axis is forward but if you're coming from another program like blender that entire concept is thrown out the window so I have no idea what the forward axis of your particular model is

[unborn hornet]

3 (90 days), unless account is paid which is ~60/year

[trail shard]

ayy got it thank you phase

[dapper lion]

@unborn hornet i saw on their thing it said 6 months, i must be going crazy then

[void ridge]

How should I detect when a player becomes ungrounded?

[unborn hornet]

@dapper lion

[dapper lion]

guess i was crazy

[grand temple]

If you have the player, it's just a property, is grounded

[void ridge]

It seems like OnPlayerTriggerStay will be using more CPU time 🤔 am I right to think that?

I went with this, but I don't love it

It's checking the state of every player that's colliding, every frame, right? So at some large scale (lots of players, frequent collisions), could this be adding up to perf loss?

[celest olive]

Uh what do I need to make an interact-able button? I tried using a vrcpickup component with pickuppable turned off, and - as I peeked into a Vowgan video out of frustration - without literally anything but a UdonBehaviour that does have an Interact-Event in it's script.

Really just this little black cube object there. Click it, get stuff to happen.

nothing fancy.

[unborn hornet]

Similar to Update/LateUpdate, it is called for every frame that the player is determined to be within the trigger area.

[void ridge]

Right, so wouldn't OnPlayerTriggerEnter cost less CPU?

[normal yarrow]

I'm trying to figure out how to swap a Render Texture to a different one, and I'm new to Udon, oof.

[unborn hornet]

Yes

[normal yarrow]

I don't think I'm doing it right at all

[void ridge]

Enough less that I should keep that in mind, or am I just being obsessive? 😛

[unborn hornet]

Down side is that there are rare conditions when lag may occur which a player might pass through the trigger without having a frame of being registered as being within the trigger zone. So take care to be sure that the zone is large enough for your use case.

(though that applies to trigger zones in general, just a head up tip mostly)

[unborn hornet]

Make sure you have a collider on the object that has the script with Interact on it. Otherwise what you have should work.

[celest olive]

Uh evidently I did the big dumb and didn't link up the script.... sorry for the premature and unprofessional intrusion? :x

[normal yarrow]

Okay I cleaned it up a little bit. Anyone know how I can achieve swapping render textures through a toggle button?

[unborn hornet]

No worries, little things like that can be overlooked sometimes.

[unborn hornet]

You'd want to have a bool or int flag to track the state and Branch based on the state after it's been changed.

[normal yarrow]

Alrighty.

Okay, I concede that I have no idea what I'm doing.

[fickle swift]

Don’t mind if I could get that also?

[dapper lion]

sure lass

[normal yarrow]

Okay, so I got this to disable the sprite and animation, however, I notice that it only resumes the animation and doesn't restart (it does restart when I manually disable/enable the animator in the editor)

@unborn hornet

[normal yarrow]

Ok nevermind I just disabled the whole gameobject and that works instead.

[slim hound]

@void ridge If you don't want to use OnPlayerTriggerStay you could do this

Teleports the player up a tiny amount before applying the velocity so being grounded isn't an issue

[solid apex]

I want to know how to make a simple time delay , anyone can help me ?

[fiery yoke]

Since Udon runs on the main thread synchronously you have to test a condition every frame.
The best solution is to have a boolean and a "EndTime" float variable that you set to Time.time + delay.
Then in Update you test if the boolean is set to true and if Time.time > EndTime and if so set the boolean to false and trigger your stuff.

[void ridge]

Thank you 🙂

[verbal socket]

ok is there a place where i can dl udon code thingies ?

i kinda want one that toggles between animations i made...

door open / close

i have no clue what so fucking ever on how to do anything

[void ridge]

If you're thinking you can find a way to have a door that's pre-configured: it's kind of possible, but you're gonna need to have some idea of what you're doing to connect everything up. Recommend watching some tutorials and getting an idea. Vowgan's are easy to follow https://www.youtube.com/watch?v=Bw4uvjrvdbU

[tawdry surge]

Probably been answered multiple times before, but I don't know how to search for it: Are there already Udon prefabs that mimic all the triggers available in SDK2? I'd like to upload a world I bought from booth on SDK3 in order to future proof and save time later. Plus I could dissect the prefabs to start learning Udon while being able to have my world made public in a timely manner.

[raven peak]

It doesnt have all the triggers but i put this together for common requests and examples for people to learn.

This also shows the node equivalent for the sdk2 triggers. https://ask.vrchat.com/t/vrc-triggers-udon/196/3

[verbal socket]

@void ridge i kinda have no clue how to do ANY thing in the udon graph

and he just shows "its this"

and some of the things he has i cant get for some reason

[dapper lion]

@verbal socket what you need?

[verbal socket]

a udon graph where when a button is pressed an animation plays

for opening / closing a door

[dapper lion]

sorry bud, dont have something like that

[raven peak]

@verbal socket you want something like a bool variable in the animator to switch between the two animations. then you would use the Animator.SetBool to make it open and close.

[dusk lintel]

PC build but every time I upload it says it must be under 50 Megs....

[bleak widget]

Is there an easy way to locally sync a variable across alike udon scripts?

[fiery yoke]

The simpler way is having a shared reference to a common data container. Otherwise you have to set it on all of them individually.

[bleak widget]

Yup that is just what I was going to do next. I was just wondering if there was an alternative method that was built in to do that. Thank you ^-^

[void ridge]

Checking my understanding on this: is this the best way to handle gravity for a World? This is the graph component of my VRCWorld object. I just added on a Set Gravity node.

Or is there some better designed way for handling "global" gravity? Maybe something that's referenced for objects, too?

[raven peak]

that just sets the players gravity.

[void ridge]

Right, so do I have to also set the default gravity for objects somewhere, in a similar way? Or is there some more central place where gravity is controlled

[spring moss]

Is there a way to force avatars on players upon world entry? Or maybe the player has to be standing on a player square and their avatar is force changed before the game starts.

[fiery yoke]

Lookat Physics.gravity

[raven peak]

physics.gravity. sets the scenes gravity for rigidbodies. https://docs.unity3d.com/ScriptReference/Physics-gravity.html

[fiery yoke]

Jinx!

[void ridge]

So is that a yes? Or are you just saying, this is how I change gravity for objects

And I still have to do them separately

[raven peak]

its for the whole scene just have to do it once.

[void ridge]

OK, because players count as rigidbodies?

[fiery yoke]

Well...

[raven peak]

only when not grounded.

[fiery yoke]

Welcome to VRChat development. Players are weird. Especially when it comes to physics interactions.

[raven peak]

im not sure why discord keeps trying to reply when im not wanting to. rip

[void ridge]

I also want to know the answer to this question 😛

[bleak widget]

They change from rigidbodys to non rigidbodys?

[raven peak]

vrc uses the rigidbody for gravity when the user is falling/not grounded. when you are walking on the floor you dont need that on so they probably set it to kinematic.

for force avatar stuff you can call the setavataruse on a pedestal during the start event but players can just switch back after. and most people will stop visiting your world.

people like using their own avatars.

[fiery yoke]

Mostly because you cant temporarily set an avatar or restore their one

[void ridge]

Is there a way to read what avatar someone is using?

In such a way that you could enforce certain conditions if they are/are not wearing a certain avatar?

[raven peak]

not directly. there might be some funky work around but nothing reliable.

[fiery yoke]

Users avatars and your world should be as seperated as can be

[void ridge]

Maybe just a height range? I know in Laserdome they want a height range. I assume they just use the honor system, which kinda sucks

[fiery yoke]

You can somewhat calculate a rough estimate but its kinda jank

[void ridge]

How separated avatars are from World is a design question, seems to me it should be up to the designer 🤷‍♀️

[raven peak]

you can get information about avatar bone positions and rotation. laserdone requires a specific setup due to this.

[compact stirrup]

on the subject of jank, is there a system for me to determine who pushed a button in Udon? Like if I have a udon behavior on a button, is there a way for me to get the vrcPlayerApi of the person who pushed it?

[fiery yoke]

I think its a design Philosophy enforced by VRChat. I might be wrong but there is a lot of indication that thats the case.

[raven peak]

mainly depends what you are trying to do.

[compact stirrup]

I have a button near spawn that when pushed, sets immoblize to false

that, or I have to use a particle effect and I'd really rather not do that

[raven peak]

immobilize can only be set by the local player. not sure why you would need to know who pressed it.

[compact stirrup]

no, you can set it via script

I need a button to re-mobilize someone who got immobilized

unless there's a manual command in-game? let me look at that...

[void ridge]

If I'm setting Physics.gravity, when should I do it? Is there a good/conventional spot for "instance initialization" stuff?

[raven peak]

other then a networked variable to target that player there is not really a easy way to do that at the moment. for freeze tag i have each user own a object then send a networkevent to the owner to freeze and unfreeze.

[raven peak]

you can do it on start. or do you want it to be changing while in world?

[void ridge]

For now, not changing. Where is Start? I see it in the VRCWorld graph, but is that called every time a player connects?

[compact stirrup]

there's an onplayerjoin trigger event I think?

[raven peak]

it the first event that gets called when loading into the world. its local.

[mighty fjord]

Are there any known issues with audio sources looping despite them not being supposed to?

[void ridge]

OK. So maybe this is a deeper misunderstanding I have. Physics.gravity has to be set locally for every player that joins, even though it's referenced for stuff that isn't that player, like objects and other players?

And is this how all variables work?

[raven peak]

im trying to think how to explain this simply cause this opens up a large can of worms.

[bleak widget]

Do udon variables need to be public in order to be read from another udon script? I would assume this would need to be the case for proper scoping

[raven peak]

vrc is a peer to peer system there is no central server for the instance. for syncing its players sending information to each other like positions of objects they own. so potentially you can have one player with regular gravity and another with 0 gravity. if the player with no gravity owns a synced object the other players will see it in 0 gravity. and the same in reverse.

[raven peak]

the public option is just for displaying in the editor from my understanding. you can set nonpublic variables i think.

[void ridge]

OK, hopefully the last question I have about gravity for now. How does Physics.gravity interact with VRCPlayerApi.SetGravityStrength? Will one of them override the other if set?

[raven peak]

ive not messed with both at the same time but my assumption is the players gravity is physics.gravity * vrcplayerapi.gravitystrength.

[void ridge]

Right, multiplication, got it

That was my guess too

[raven peak]

in a old world in sdk2 i reversed the gravity so players would walk on the ceiling.

[forest mica]

That’s cool

[raven peak]

it should still be public was called no floor chat.

[void ridge]

(thank you for your help jet)

[timber ridge]

I need help with my vrchat framerate,it is super stuttery. I can play the game but the frame rate makes it unbearable,i tried looking for answers by watching videos and searching on google and reddit but nothing seemed to work.i tried lowering my resolution and still nothing changed. Please help

[void ridge]

This question belongs in #user-support-old or #vrchat-support. I think it's also answered in #faq

How do I change graphics settings for VRChat?
Holding down Shift while launching VRChat will bring up a configuration menu where you can adjust the graphics quality. Additionally, you may want to consider using the Minimum Performance Rank Display system and Dynamic Bone Limiter systems, available as a button in the top-right in the Safety tab of your menu.

[bleak widget]

After testing it, you seem to be correct. The public options seem to just make it visible in the editor

[normal yarrow]

Okay, so I made a system to toggle an entrance tron, however, I need to now (somehow) get the one video player I have to toggle visibility, load a pre-determined URL, and play the video. When that gets disabled, it should stop the video and then disable visibility.

[normal yarrow]

This setup doesn't seem to be working at all.

[hardy fog]

Looks like this works locally. I added a sort algorithm and all clients have players in the same elements of their playerLists. Thanks again.

[normal yarrow]

🤔

[raven peak]

do you have allow untrusted urls on? and you probably want playurl instead of load url. the video hasn't loaded when you are doing play. playurl will auto start it when it loads.

[normal yarrow]

I'm doing this in the editor

[raven peak]

are you using the unity or avpro video player then?

[normal yarrow]

Unity Player

[raven peak]

the playurl should fix it for editor. if not they i would try a test build to see if it works.

[normal yarrow]

I notice the URL doesn't even go in here.

[raven peak]

might not be working right in editor.

[normal yarrow]

I'll do a build test and see if it works there.

[raven peak]

when it comes to vrc components i dont trust the editor for testing.

[normal yarrow]

Hm.. no, it doesn't play in the build test either.

The other tron graphics do play though (but that's because those are animated spritesheets because video player limitations)

[raven peak]

you can put in a debug.log to see if the right methods are being called.

[normal yarrow]

Where can I find that?

[raven peak]

unityengine.debug.log

it can print a string to your console.

[normal yarrow]

Ohh

wait

Yeah

I see what you mean now, lol.

Ok for some reason now my mouse is automatically dragging the udon graph screen, oof.

Gonna relaunch Unity

Okay where do I attach the log to?

[raven peak]

i would put it in front of the stop method and playurl method. then you can attach a constant string to the log obj to print which one is being called. this is to make sure that things are firing correctly in the code.

[normal yarrow]

Like this?

[raven peak]

ya that works. then you could put "should play url" for the string.

[normal yarrow]

Welp, nothing happened.

Also for some reason when I press the button, the editor game just pauses itself.

[raven peak]

looks like you have an error causing the problem. click the red icon on the top right of the image.

[tawdry surge]

Thank you very much! I figured I was asking a big question, but I really appreciate it!! 🙏

[raven peak]

im assuming you have the video player referenced.

[normal yarrow]

Yeah.

MainTron would be it.

[raven peak]

why do you have them set to synced?

[normal yarrow]

So that everyone can see the trons change.

[raven peak]

thats not how that works.

[normal yarrow]

oh

[raven peak]

that is for syncing variable values like ints and floats.

[normal yarrow]

Oh I see

[raven peak]

these are the only variables currently able to be synced.

[normal yarrow]

Was the syncing causing the issue?

[raven peak]

i wouldn't think so but maybe.

[normal yarrow]

Okay I confirmed it's not.

It seems like it doesn't like this.

[raven peak]

ya but it should work fine.

[normal yarrow]

For whatever reason, it isn't.

[raven peak]

I want to say its the editor not playing nice but you were having problems in game as well.

[normal yarrow]

Yeah

And I know the video URL itself does play in-editor.

[raven peak]

the editor could not be playing nice with the component but when you did a test build the sync variables broke it.

could try another test build.

do you know how to open the debug log?

[normal yarrow]

I check the console?

[raven peak]

for vrc.

[normal yarrow]

No

[raven peak]

--enable-udon-debug-logging

in launch options.

then you can press "Rshift+`+3"

[normal yarrow]

That opens it up?

[raven peak]

ya

[normal yarrow]

Nice

[raven peak]

you will be able to see the debug.log message and if there is a error.

[normal yarrow]

Welp, same thing happens.

[scarlet lake]

not really a question specifically about udon but i want to create a small forest scene and have the foliage sway to simulate wind. how would i go about doing that?

[raven peak]

usually a shader or speedtrees.

[normal yarrow]

😔

[raven peak]

are you disabling the video player at all? or have it disabled at the start?

[normal yarrow]

I have it as a child to an empty that gets toggled as enabled/disabled

So all the trons get enabled/disabled together.

[raven peak]

that might be the cause. if you are calling the events before the component gets initialized could cause the problem.

[normal yarrow]

Ooh

Hm...

Is there a way I can delay the playURL command?

[raven peak]

i would personally keep it outside of the objects being turned on and off. then you just say to play and stop when you turn on and off the objects.

[normal yarrow]

Ahh I see.

I'm really new to all of this so I would have no idea how to set that up.

[raven peak]

would basically what you have now but you drag it out of the empty parent that is being toggled.

[normal yarrow]

Ohhh I see

The only thing is, the reason why I have it disabled is because I have a picture that would be there if no video is playing.

[raven peak]

you can separate the screen and the video player. so the screen would still be with everything but the video player component would be out.

[normal yarrow]

Ahh I see

I see what you mean now

[scarlet lake]

do we know when sync animation will be available ?

[normal yarrow]

Welp, yep, that worked.

Hm, now I need to figure out how to change the default color of the video screen to be black instead of white.

[scarlet lake]

also i noticed that my mirror/avatar toggles, etc dont have the blue laser anymore when u point at it. is that just how it works with udon worlds now or did i forget something

[tawdry surge]

Just a shot in the dark, since I know it's something I'd need to work my way up to attempting, but if I wanted to have a system that can save a players progress in a long duration RPG world into a code that you could copy/paste into a UI bar.. I saw something hinting at that idea, but is this possible without causing excess overhead?

I know I'd probably have to set points that the system would save and generate some numbers for.

But ideally, it'd be something random so people couldn't just cheat their way through if they figured out the pattern.

[raven peak]

i dont know when sync animations will be available but you could potentially make your own. for the laser usually that if for pickups. dont remember seeing that for buttons.

[raven peak]

yes it is possible but you would have to code it your self.

[tawdry surge]

You think it could still randomly generate the "progression code" so that they'll be unique but still functional?

[raven peak]

two ways could do it. based on the users display name it could jumble the code but it will break if the user change their name. you could also just make a encoder to make it harder to read.

[tawdry surge]

OH! I forgot about seeing the world being able to read usernames!

[raven peak]

it cant be completely random cause you need to know how to decode it.

[tawdry surge]

That's a good idea.

It breaking if they change usernames isn't of too much consequence.

Thank you!

[rancid cedar]

So i have a pickup item that's only changes client side, is there an easy way to make it server synced?

[raven peak]

add a udon behaviour and click this.

[rancid cedar]

Is that a default script I assume?

because i was just using VRC_Pickup to make it

[raven peak]

its provided by vrchat's sdk.

[rancid cedar]

ah i see, its just an option to check when you add a behavior

dope, thank you

[normal yarrow]

Okay so toggling it off starts the video over again, oof.

[raven peak]

yes cause you are telling it to stop. you would need to pause it then play when you turn it back on.

[normal yarrow]

Right but I want it to restart when toggled back on.

[raven peak]

im not sure what you are wanting then.

[normal yarrow]

Basically toggle button to start the trons and the video, toggle it again to turn it off and reset it to the default tron pictures.

These are the default tron pics

[raven peak]

ya that can get a bit tricky with the unity player.

[normal yarrow]

Toggling the button will then play all of these

The giant screen would display the video player stuff

[fresh elbow]

does anyone know why i'm getting this error?

using the c# extension for udon

[raven peak]

i would personally swap materials for this. so you would have to make the video player render to a render texture. put it on a material and set the materials needed when playing and not playing.

[normal yarrow]

It already goes to a render texture.

[raven peak]

might need to try the udonsharp discord.

no no no no that is a bad way of doing it.

[normal yarrow]

oof

[dapper lion]

thats terrifying

[normal yarrow]

...yeah

[raven peak]

you dont need the camera you can do it directly.

[normal yarrow]

I pretty much did it for these since these were 2D spritesheets

[fresh elbow]

ill try there

[normal yarrow]

Well, the entrance tron spritesheets are animated, so those needed to be spritesheets.

[fresh elbow]

uh

anyone got a link to that

[raven peak]

there should be a link on the github.

[fresh elbow]

ah yeah, couldnt find it on github, but found it another place

ty

[raven peak]

why not just use the spritesheets on the objects?

[normal yarrow]

Okay well if now the video player is going directly to the render texture, I now need it programmed to show that RAW logo when no video is playing to the render texture.

What do you mean?

[raven peak]

you are using a camera for the spritesheet animation. why not just apply the material to the objects you want to have it on?

[normal yarrow]

It doesn't look right when I directly put the spritesheet on the material.

[raven peak]

you need a sprite sheet shader. who are you doing it for the camera?

[normal yarrow]

If I use a sprite sheet shader, the emission goes bye bye.

And I need that emission to make them look like lit up LED boards.

[raven peak]

another option is code the tiling and offsets to animate them.

a custom shader would be better but im assuming you dont know how to make one.

[normal yarrow]

I do not.

[raven peak]

the cameras are going to hinder performance a bit is the problem.

[normal yarrow]

oh

Welp

https://gist.github.com/petereichinger/60b8bd2cb3698bed3187d3879253cd35

I wonder if this will work

[chilly crater]

Is there a way to change your avatar without the VRC avatar pedestal?

Like you click a gameobject and it swaps?

[normal yarrow]

Ahah! I figured out the video restarting issue.

😎

Makes way more sense now that I look at it. @raven peak

[raven peak]

👍

[normal yarrow]

Now I need to get the default video screen color to be black.

[chilly crater]

BlueprintID? Isn't that savefile scumming?

Upload with a file, and then try to upload the world again with a previous version of the same file?

I'm not sure.

[normal yarrow]

Hm, so I noticed that the trons only play locally.

oof

Pretty much, yeah.

[scarlet lake]

I want to create a virtual barber shop world where anybody could sculpt custom hair grooms. I wanted to export them as FBX but there seems to be no way of using local / remote storage from udon. I noticed that in VKet you can have a button that pops up a browser window for a specified URL. Is this functionality accessible through UDON?

[dapper lion]

bro that is illegal my friend

same thing with 360 video players currently

@scarlet lake best thing you could for that feature is just putting a link in a type spot, and set it to copy

otherwise youd be heading towards the "no, dont" town

[normal yarrow]

wah?

[scarlet lake]

thanks! @dapper lion . i suspected that was VKet specific feature. I know there is no way of calling REST api from udon but through that button i could encode a fair amount of data in url itself. and then convert to downloadable FBX on server. sadly, having a copyable text field seems to be the only way to transfer data from VRC into real world.

[dapper lion]

correct, but yo can technically make a copyurl thing ive seen others do and the user just simply pastes in the link

[scarlet lake]

that seems like the best option. ill google how to do that

[raven peak]

video players are local you have to sync them yourself.

[normal yarrow]

I see.

The other trons that were just spritesheets also didn't pop up either on the other client.

[viscid reef]

there is nothing "illegal" with 360 video players

[rancid cedar]

any way to set the velocity of a game object using udon? I know there is bust i just dont know what the node might be called lol

[fiery yoke]

What makes a GameObject move? The Rigidbody Component. So its a property of the Rigidbody. (Rigidbody.linearVelocity)

[rancid cedar]

how exactly would i go about getting a reference to the rigidbody of another game object in the scene? Basically im using a button to teleport and reset the velocity of something that's floating in space

you can't drag a rigidbody into a public variable, and I couldn't seem to find a way to dig into a GameObject to find its rigidbody like you might do in unreal or something

but its possible i just don't know the right node or something

[chilly crater]

I still can't figure out why people can't pickup certain items in my world.

[native estuary]

That happens most commonly when you have multiple pipeline manager components in the scene (searching with t:pipelinemanager in hierarchy finds them)

You can also import this and check VRWorld Toolkit > World Debugger if you are having trouble finding them
https://github.com/oneVR/VRWorldToolkit/releases

[rancid cedar]

ah nvm, i forgot about GameObject.getComponent

[native estuary]

You have any bigger trigger colliders aroynd the pickups that can't be picked up?

[chilly crater]

No triggers, just a button

I can pick them up just fine

But other people can't.

Non-masters?

They render, other people can see me shoot them AND their projectiles. They just can't pick them up.

[native estuary]

And they aren't on desktop vs vr or something?

[chilly crater]

They are on VR

White balls are the guns, colored balls are the respawn buttons

[native estuary]

Are you on desktop?

[chilly crater]

Yes

[native estuary]

Well that could still be some big area collider trigger you have in the world

[chilly crater]

There are no area colliders.

the pickup is on an empty... Is that bad?

[native estuary]

Empty?

[chilly crater]

I created an empty

The mesh, grip, and spawnpoint are parented to it. The empty has the pickup script and udon script, rigidbody and whatnot

[native estuary]

Shouldn't really change much as long as you have the collider and vrc pickup on the same object

I mean your picture looks alright and since you don't have any trigger collider I can't think of any other causes really

[chilly crater]

I can pick it up when I test build with two clients

[native estuary]

Well both of those are desktop users so to be expectes

[chilly crater]

I can't exactly test it since I don't have VR. This is meh.

Can something be too small for VR?

[native estuary]

I mean most likely but that doesn't seem too small

[chilly crater]

I moved the buttons and the whole table up some

AND doubled their size. Now to upload and drag a friend with VR into it.

https://i.imgur.com/4nW5mnN.png

[chilly crater]

Yeah, it was the size of the snowballs.

VR apparently doesn't like things that are too small

[mild fern]

i think i am dumb cause all of a sudden all of my objects that i had sync posistion on for my worlds are being hella weird

and not working

did i miss an update?

[normal yarrow]

I just realized that the reverb is applied to every audio source, oof

[normal yarrow]

Any way to fix that?

[void ridge]

I want to generate a bunch of random values when an instance is first loaded, and keep them synced for everybody so long as the instance continues to exist. The closest answer I've found is this:
https://ask.vrchat.com/t/getting-instance-id/501/5

I know how to generate a random values. What I don't know is how to do them as part of "initialization," such that it only needs to happen once.

I think I'm just still lacking the basic understanding of when and how to synchronize data. If there's a good guide for that I'd love to see it

[cunning mist]

Have all the values be set in start, but only if you're the object owner. So essentially...

private void Start()
{
    if(Networking.IsOwner())
    {
        Synced Value = Random Value or whatever;
    }
}```

@void ridge

For synced variables, the person who owns the object is the only player who can even modify the values of synced variables.

[void ridge]

Thanks for being the person who answers on Christmas Vowgan 😄

[cunning mist]

I wrote that in U#, just imagine the first If statement is just a branch

No worries, just hopped on my phone for a minute lol

[void ridge]

yeah, I think I get the jist, though I haven't used U# and have only learned a tiny bit of c#

I'm still sort of confused by this

I think I get that udon behaviors are always attached to objects. And I understand that networking is peer-to-peer and objects have owners on the network. But why limiting something like this by owner equates to initialization of an instance? Seems super weird to me

I'm also not totally up to speed on how Start works, but I can find docs for that part.

[cunning mist]

Synced values are set to anyone, so only one person needs to set them. Start also only fires the first time that the object exists, so you don't need to worry about it happening more than once.

[void ridge]

Start also only fires the first time that the object exists
define 'exists' 😂

[cunning mist]

The first time the object thinks about itself, essentially. Technically it happens about one second after the world loads, but it never happens again unless you've spawned in that object again, then again synced variables don't function on instantiated objects as you can't network instantiate, so that's an entirely different thing.

[raven peak]

Do you know about execution order joker?

[void ridge]

Yes, execution order I understand

execution flows start with an Event, and anything that needs to operate on memory fires one at a time, in a pre-defined order. In Udon, that order is controlled by the in/out execution ports. And Block nodes are special and weird and I'm not sure why they're not redundant 🤔

[raven peak]

I was talking about the unity execution order. https://docs.unity3d.com/Manual/ExecutionOrder.html

[cunning mist]

Ah you already grabbed it

[raven peak]

Its the order of events that happen per frame.

[void ridge]

Right, got that

[cunning mist]

Block nodes are a bit funky, but they're important for wanting to do multiple Branch checks in the same event without relying on it being true or false to lead into it.

[void ridge]

I can respect funky.

Start is only ever called once for a given script.
This I understand. I think what I'm missing is deeper, meaning, when does a script run and what causes that?

[cunning mist]

When the script runs is dependent on the event being called. Update/LateUpdate happens once a frame. Start happens as soon as it exists. OnEnable happens whenever you enable the object, and the inverse with OnDisable. Interact happens when you click it, so on and so on.

[void ridge]

OK, so for an object that is included as part of the initial state of a scene (i.e. not spawned in at any point), Start fires when the first user loads the scene.

And then it doesn't fire ever again (unless it's de-spawned and spawned again)

[raven peak]

These are the official info for the start event. https://docs.unity3d.com/ScriptReference/MonoBehaviour.Start.html

The event start gets called once locally for everyone when the scene first loads up.

All events are local unless you send a network event to have everyone do the event.

[void ridge]

OK, that's what I was afraid of. So if I'm using Start to generate a random number, then without something more, it sounds like it's going to try to generate a new number each time someone loads in. But that can't be right.

[raven peak]

That is where the ownership check comes in.

When a new instance is created there will be a master of the instance (first person in there). They will have ownership of the generator so on start they will generate the number. Then using a synced variable when new people join will get the value of that variable.

[cunning mist]

Right, only the person who owns the object can even set it, so having a branch check Networking.IsOwner before you set those values will give you identical values for everyone.

[void ridge]

What about ownership transfer? Is it just that there exists no possible scenario when a user is first given ownership of an object and then executes Start?

other than the scenario of instance creation, i.e. initialization

[raven peak]

What are you trying to do? That would require you to take ownership then do the start event?

[void ridge]

Oh, no, I don't want that. That just sounds like the thing that we need never to happen.

I want to generate a random number when an instance starts, an then keep that number in existence and synced for all users who may join, until the instance closes.

[raven peak]

Have a synced variable this will be the random number to sync. On start have a branch with the network.isowner as the condition. The set the number to something random if true.

[void ridge]

What I'm hoping is implied in Vowgan's solution is: when the master player leaves and ownership of the generator object is transferred to a new master, that new master couldn't ever go "I own this now, and I'm gonna fire Start"

[raven peak]

nope will be fine.

[cunning mist]

No new players will ever on-join become the owner of the object. Even if you literally set them in Start to be the owner, ownership transfer takes a frame and can only be acted on during the next frame.

Yeah you'll be fine.

[raven peak]

As long as there is a person in the world with the synced value it will be the same for everyone. The only time it will change is if everyone leaves and rejoins. Cause there is no one left in the instance to transfer the number.

But then a new number will be generated.

[void ridge]

Right, that's the intended function

OK, I think I know what I need to know! That is, Vowgan is right, but now I know why they're right 😛

[raven peak]

👌

[void ridge]

Closing thoughts:

1. Thank you both a ton for helping me out during your xmas afternoon 👍 🎉
2. From a newbie perspective, this seems like an inelegant solution to what I might overconfidently presume is a somewhat common need. I wonder if this could be feedback for Udon.

Seems like not the rarest thing to want to run something at instance start, make some decisions, and then save the answers for the remainder of the instance.

[raven peak]

I got nothing better to do at the moment. But i cant think of a more elegant solution other then more settings to sync.

[void ridge]

Again, newbie--this is probably ultimately just a result of some larger architecture that I don't yet understand. But in any case, it seems to be within the scope of an SDK to make things like that easier 🤷‍♀️

Even if it's just to modify the VRCWorld prefab to include some easy spots for "stuff that runs once and only once for each game instance, right at the beginning"

[raven peak]

Syncing will be getting a upgrade hopefully first quarter 2021. most of my projects are waiting for it

[raven peak]

While it might look clean for the users perspective about the same thing would be going on in the background.

[void ridge]

this is software. I thought looking clean with a mess under the hood was the name of the game 😏

[raven peak]

Lol very true

But now with udon we get to get our hands dirty.

[void ridge]

"This is software" meant to be read in the tone of that one scene from 300 ("this is sparta")

[void ridge]

bumping Pablo's question since I derailed it otherwise. only polite 😛

[raven peak]

Usually happens when you have a filter on a audio listener. Let me look back on the question.

[raven peak]

Are you using a reverb zone? The audio source has a option to bypass effects like it.

[normal yarrow]

I am, yes.

Ahh

I can do that for player audio?

[raven peak]

It shouldnt affect player audio. Unless they changes something i didnt know about.

[stark bay]

Got a problem uploading my world, its not necessarily 'udon' but it is 3.0 and does use very basic udon stuff like light switches and such, tried uploading it (Again because I've already managed to before) and the first strange thing I noticed is that it was named 'unpublished world' the upload menu, after clicking publish and waitin a couple months I got to the uploading ui and the worlds thumbnail and name had been reset as if it was a new other world, as well as this I also couldn't even click the upload button...And I also got this in the error log:

NullReferenceException: Object reference not set to an instance of an object
VRCSDK2.RuntimeWorldCreation.Start () (at Assets/VRCSDK/Dependencies/VRChat/Scripts/RuntimeWorldCreation.cs:82)

This is making me unable to update my world from this point on and the weirdest part is, I tried doing this again but before publishing I put everything under a gameobject and hid it (Hid everything basically) and when I had the publish UI it had its name and thumbnail as usual but I did not try actually clicking upload cause I didn't want my world to be stuck as an empty space

The only thing I can think of that I changed in this version of the world is some lights and I added an object but nothing that crazy

[rancid swift]

Could it be that Udon does not support syncing strings that contain 0-bytes ("\0") in them? I'm getting this absolute banger of an error message, it doesn't stop, but it also never syncs:

[normal yarrow]

It does affect it, yeah