SDK Bug & Feature Requests

Using UdonGraph and UdonSharp, any attempt to load from a url (String, Image, and Video) fails to run, resulting in an UdonVM error. This issue can be reproduced in any project attempting to load a URL on the 3.10.2 SDK. The Graph shown in the screenshot never has OnStringLoadSuccess/Error trigger, as the error occurs during the LoadUrl step. The issue appears to stem from Udon communicating with UniTask. I have provided the resulting error using an UdonGraph here: ----- [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 'VRCSDK3StringLoadingVRCStringDownloader.__LoadUrl__VRCSDKBaseVRCUrl_VRCUdonCommonInterfacesIUdonEventReceiver__SystemVoid'. Parameter Addresses: 0x00000000, 0x00000001 Method not found: Cysharp.Threading.Tasks.UniTask Cysharp.Threading.Tasks.UniTask.WaitWhile(System.Func`1<bool>,Cysharp.Threading.Tasks.PlayerLoopTiming,System.Threading.CancellationToken,bool)

For some reason, RuntimeLogWatcher from UdonSharp loads entire log files of VRChat in memory and scans it, every editor tick. If for some reason, there is a large log file of VRChat (for example because some world spams with messages), then right after Unity starts, RuntimeLogWatcher can't handle it gracefully and just explodes in UI hangs and RAM usage. Before Unity loads in usable state, it is already have less than 1fps and uses dozens gigs of ram. For some reason is also cannot be turned off: even if Output watch mode is set to Disabled, it is still there.

When I try to use "Build & Test" with a number of clients above 1, one of the windows works fine, but all the others just sit on a black screen and won't even let me close them without doing End Task in the task manager. I also actually tried manually launching two instances myself, using the --profile=1 argument for the second one, and encountered the same problem, so this might not be specific to Build & Test.

When opening up a Unity World Project, and it opens up to a scene that contains/references a 3D texture, and if the VRChat SDK's Builder panel is already open, then it can throw the error shown in the image. (The 3D texture, in my case, is likely an AgX LUT custom render texture I'm using from Silent's custom tonemapper https://github.com/s-ilent/custom-tonemap/ ) ========================= Repro steps: In Unity Project, use a shader & material in the scene that references a 3D texture (must be a true 3D texture, not a texture array) Open the VRChat SDK and leave it at the Builder panel Close and reopen the Unity Project See Error thrown in Console (shown below) ========================= Full error: Error assigning 3D texture to 2D texture property '_MainTex': Dimensions must match UnityEngine.Material:GetTexture (int) VRCSdkControlPanel:GetOversizeTextureImporters (System.Collections.Generic.List`1<UnityEngine.Renderer>) (at ./Packages/com.vrchat.base/Editor/VRCSDK/Dependencies/VRChat/ControlPanel/VRCSdkControlPanelBuilder.cs:1151) VRC.SDK3.Editor.VRCSdkControlPanelWorldBuilder:VerifyMaxTextureSize (VRC.SDKBase.VRC_SceneDescriptor) (at ./Packages/com.vrchat.worlds/Editor/VRCSDK/SDK3/VRCSdkControlPanelWorldBuilder.cs:773) VRC.SDK3.Editor.VRCSdkControlPanelWorldBuilder:OnGUISceneCheck (VRC.SDKBase.VRC_SceneDescriptor) (at ./Packages/com.vrchat.worlds/Editor/VRCSDK/SDK3/VRCSdkControlPanelWorldBuilder.cs:759) VRC.SDK3.Editor.VRCSdkControlPanelWorldBuilder:CreateValidationsGUI (UnityEngine.UIElements.VisualElement) (at ./Packages/com.vrchat.worlds/Editor/VRCSDK/SDK3/VRCSdkControlPanelWorldBuilder.cs:251) VRCSdkControlPanel:RunValidations () (at ./Packages/com.vrchat.base/Editor/VRCSDK/Dependencies/VRChat/ControlPanel/VRCSdkControlPanelBuilder.cs:883) VRCSdkControlPanel/<>c__DisplayClass204_0:<ShowBuilders>b__1 () (at ./Packages/com.vrchat.base/Editor/VRCSDK/Dependencies/VRChat/ControlPanel/VRCSdkControlPanelBuilder.cs:822) UnityEditor.RetainedMode:UpdateSchedulers ()

In the Worlds SDK, there are some built in logging functions in the file named ClientSimExtensions.cs . When these logging functions trigger, they insert a timestamp, but this timestamp is in the wrong format (forces 12 hour with leading zero). Current timestamp string: System.DateTime.Now.ToString("hh:mm:ss.fff") Ideally the format should be "HH:mm:ss:fff"

The Harmony package, used by Udon Sharp, and a handful of third-party community plugins for runtime patching in the editor, has been updated to officially support ARM64 on all platforms (Windows, Linux, and yes, Mac). This will correct any in-editor issues when running the Unity Editor on these platforms. Whilst VRChat itself may only support PC & Android, the Unity Editor is a cross-platform utility, and there are a variety of folks with ARM-equipped machines who use such hardware for primary development, and therefor experience issues with the editor without patching. With the advent of full iOS support on the horizon, this may further increase the # of Mac-based content creators. Please update the provided package. Release notes for version where ARM64 support was added Addendum An experimental VPM package can be found at MisutaaAsriel/VRCHarmony which installs a packaged release of Harmony 2.4.1. Unity appears to, in all testing, prefer the package's copy of Harmony over the version included by the VRC Base SDK. This package may also be installed using the following VPM repository: Dreemurrs-Repository VRChat may use the DLL provided from this repository if need be, or take over the package if they so wish. — It is currently built off of the Release target of Harmony, at the solution level, with .NET Framework 4.5.2 using GitHub Actions Note Building Lib.Harmony against the DebugFat target at the project level, or building it for Release against net452 at the solution level creates a successful drop in replacement. The release builds when built at the .NET project level or downloaded from the main Harmony repository currently output a mangled DLL that Unity Burst is incompatible with. A bug report is open on this here: pardeike/Harmony/issues/728 For further reference, the original copy of Harmony is built against .NET 4.5.0, which is no longer a valid target. 4.5.2 was chosen as its nearest replacement. Edited @ EPOCH 1757603286

How to reproduce: 1.Make new Contact Receiver (i used Proximity) and input parameter 2.Make Sender corresponding to this Receiver (as example Hand) 3.Go into playmode and turn on Sender, to start contact getting value from Sender 4.Pause Unity playmode, then disable Sender and click next step You will notice for one frame, Receiver changing his value to 1 then in next frame to 0 Why im writing about that, because this destroying my whole face system, i can't quit from Blendtree correctly and i see for one moment animation set to maximum, where im trying to make the most smooth transition as possible between all faces. Or can cause for mistake to run some transition what you don't want. Problem is occuring in VRChat too. Second bug: Contact values doesn't update if you don't have cursor at Inspector.

This is extremely frustrating. I created a project based on the current version of WorldSDK and tried to package the scripts located in Assets/[username]/Runtime/* using Package Maker, but it deleted the files without any warning, and the process never finished, freezing up. An exception also occurred the first time. Despite being an official procedure, it's completely unacceptable that this specification destroys the entire project, regardless of whether it succeeded or not. Please fix this quickly.

[Translate with Gemini] Avatars and Worlds may fail to upload when the hostname and/or username contains non-ASCII characters. It should be a Unity bug, so you can close this if there's nothing you can do on your side. [Original] アバターとワールドはホスト名かユーザー名のどちらかに非ASCII文字が含まれているとアップロードに失敗することがあります。 これはUnityのバグだったと思うので、SDKサイドでできることが無いのであればクローズしていただいて構いません。

As the title suggests, when using a particle system on an avatar, attempting to upload it when the particle material uses Alpha Blended results in the SDK refusing to upload, indicating it is an "unsupported" shader. Then tells us to use shaders from VRChat/Mobile …which is where this very shader is from. This is objectively bad. Either move the AlphaBlended shader out of VRChat/Mobile (E.G. VRChat/PC ), or whitelist AlphaBlended on Quest when used with a particle system. SDK version 3.8.2 Similar feedback: https://feedback.vrchat.com/sdk-bug-reports/p/some-vrchatmobile-shaders-are-labelled-as-non-compatible https://feedback.vrchat.com/sdk-bug-reports/p/cant-upload-to-quest-with-vrchatmobile-shader https://feedback.vrchat.com/avatar-30/p/unhelpful-error-message-about-alpha-blended-shader-not-supported-on-android Notes Fax says that transparency is not supported on Quest, hence its refusal to upload, but this is actually not true. Transparency is not supported on mesh renderers only. Particle systems do support transparency.