SDK Bug & Feature Requests

Problem Opening VRCSDK Builder page or changing the selected avatar will revert pose (transform) to rest pose defined in the 'Avatar' asset of the root Animator component. Cause of the problem In the OnGUIAvatarCheck method of the VRCSdkControlPanelAvatarBuilder class, it will call Animator.Rebind method to check the situations you call "nested armature". However, Animator.Rebind function will write the default pose defined in the 'Avatar' asset so it will revert any pose changes made in the editor. This is annoying since this will disturb creating animation clips and testing them in the editor. Solution One solution is to use Animator.Rebind(bool writeDefaultPose) private method and pass false to writeDefaultPose parameter, instead of passing true to it, which is the default value. This method is not available as public API but it will keep available until Unity 6000.2.0b4 (the latest available C# reference version . Another solution is to collect the current pose before calling Animator.Rebind and restore it after the call but this takes more code.

I want API to run avatar validation of SDK and get list of errors / warnings of specific Avatar/GameObject. In the NDMF , a framework for non-destructive tools, there's feature to run non-destructive tools and see if tools raise errors (called test build). I think it's good to show errors from VRCSDK on the test build, but there's no API to run and get list of validation errors so its hard to show errors without sdk api. Therefore, I'm requesting for API. It would be great if this API is provided as a static method of some class and does not require opening control panel since control panel might not be opened on test building avatar.

Please throw ValidationException directly or provide it as the InnerException of the BuilderException. This feature allow us to show the cause of the build error with detailed information on our build tool. Currently ValidationException only has message texts, but it would be good to provide list of related objects (like textures for mipmap streaming) and Action for auto fix for each validation error entries.

The last SDK version I was able to successfully test was 3.8.1. This one allows for lighting to bake successfully On latest SDK 3.8.2 (And 3.8.2-beta.1): 'Generate Lighting' with unity built in lighting menu -> Background task stuck "Waiting for shaders to compile" - The time to completion continuously rises and never moves past 5% I am using an AMD rx 5700xt, screenshot attached is from another user who has the same issue and is using NVidia.

UPDATE: I fixed it! This turns out to be a bug with the "Logging" setting inside VRC (as shown inside the second screenshot) Turning this setting "off" results in the described bug! SDK 3.8.1 (also 3.8.2, I tried upgrading). Release 2025.2.3, build 1664 (going off the steam update notes). Description: Upon using Build&Test with two clients, only the first client will successfully load in. The second one will just hang on a black screen, with no loading whatsoever. The only way to close that inactive window is to use task manager. The same seems to happen with three clients, only the first one will successfully load in. I believe it worked fine until yesterday How to reproduce: Attempt to Build&Test, for windows, with two+ clients. Tried with VRC quick launcher as well, using Build&Reload with 0 clients and letting the quick launcher open them. This makes testing for networking issues quite a bit harder Logs and more information can be provided if needed

Helps us create beautiful scenes. The first picture is "Shadowmask" (the default and the VRChat currently used). There is a problem with rendering shadows. The terrain has insufficient shadow map resolution, and shadows are not visible. Furthermore, the car is on the border of shadow, but the entire car is dark. The second picture is "Distance Shadowmask." This uses a mix of baked and real-time shadows, and the problem with rendering shadows has been improved. Also, the LightMap is used in the distance, which also improves performance.

In the new SDK 3.7.6, it's now possible to build a world on Linux, but it is not possible to launch a local test with proton. Pls add proton support, similarly to: https://github.com/BefuddledLabs/LinuxVRChatSDKPatch

In the public world 'a-lin', photos taken using the player camera fail to display vegetation, trees, terrain, and similar environmental objects. These photos ignore objects rendered via VRCGraphics.DrawMeshInstanced. DrawMeshInstanced objects are ​​completely absent​​ from camera photos despite being visible during gameplay and in SteamVR (F12) screenshots. This bug ​​severely disrupts​​ the player photography experience. How can this be fixed?

everytime i open unity make a new project then load a vrchat avatar file everything works fine except the prepare your content tab on the SDK ive tried reloading it reopening projects deleting projects and deleting unused things for more storage but they all never work and it still doesnt load. it doesnt let  me click the prepare your content tab at all when it is opened it shows everything it should but just wont let me click on anything in that tab. i am able to click and interact with the review alerts tab and build tab just not prepare your content

This new version seems really emjoy hanging in Scheduler.Tick. Maybe I got too many avatars?