World/Udon Bugs & Feature Requests

Post about current World or Udon bugs feature requests. One item per post!
Non-constructive and off-topic posts will be moved or deleted.
Udon's FixedUpdate() runs multiple times before any Unity physics simulation is done.
https://vrchat.com/home/world/wrld_9b540ed9-6aca-4172-9e33-f75cb756a9f5/info This world measures how many times by adding a force every frame and checking if Rigidbody.GetAccumulatedForce() is larger than one frames worth. My result with one client is 28-32. My result with two clients: Master: 28-150~ Nonmaster: 180-300~ The numbers are going to be much higher in more complicated worlds that take longer to load and have more networked/physics objects. This is problem for anyone working with physics, because applied forces will add up and cause the object to suddenly spring away with all the accumulated force once the simulation starts actually running. Personally, it caused the suspension forces on my cars to build up and cause them to shoot in the air and explode. The number of frames is much greater if two players join a new instance at the same time, leading to confusing problems for developers. The number of frames seems to be directly related to how long the loading screen is shown for, in the case where two players join a new instance at the same time, the loading screen is shown for much longer. Solution: It might actually be quite complicated because this delay way probably added for a good reason. I don't think it's as simple as not running FixedUpdate() until the delay is over, because Update() etc is also already running. Maybe delay all Udon activation until this time? There's no way for me to know without knowing VRC's code. A workaround fix could be to add a PhysicsReady() event for when physics actually activates.
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Give UDON & U# access to Instance Information & Group Information
Hello VRChat Devs and World Creators, For a better formatted & More In Depth Version of this Feature Request that includes Images and Descriptions of each node, please go to my post on the Dev Forum: https://ask.vrchat.com/t/feature-request-give-udon-u-access-to-instance-information-group-information/27923 Due to the character limits on canny, I cannot put the full post here, Again, Please refer to the dev forum post linked above I propose adding the following Nodes: InstanceInfo IsUserInGroup DoesUserHaveRole GetGroupRules GetGroupDescription GetGroupBanner Now let’s go over some examples for how these nodes will benefit world creators. Determining the Instance Type is super useful as world creators can choose to enable/disable certain features of a world depending on the instance type. For example: In a Public instance I would make sure the permissions system is disabled and all staff objects will be disabled, While in a Group Public instance we would enable all the permission systems and enable staff objects. A notification could appear in front of the player when joining any Group Instance, informing them that they have joined a group instance and Groups can set their own rules. Using the “GetGroupDescription” and “GetGroupRules” Nodes, we can put the rules and description inside the world to make it easier for people to see the rules (cause lets be honest, nobody reads group rules before joining a group public) The “OnInstanceClosed” Event can be used to turn off an open sign at the entrance of a store or bar. The “IsUserInGroup” and “DoesUserHaveRole” Nodes can save world creators and group owners a huge amount of time and hassle, because groups can assign roles to players in the group and have those roles affect what abilities they have within the worlds, eliminating the need for world creators to create super convoluted permission systems for manually assigning roles to players. It can also be useful for things like Patreon/Paid Perks in a world, A lot of people still don’t use/don’t have access to the Creator Economy, or they simply use both. World creators need to set up an external GitHub.io site or a pastebin containing the usernames of paid supporters, and keeping track of people changing usernames and what not is very annoying, Remote string loading also poses the risk of people spoofing URLS to include their name in the list (and yes even though UDON Code Signing has been released, this is still an issue). Being able to access a Main Group for the world and checking if the player has a specific role will eliminate all these issues: * It doesn’t matter if a player changes their username as we won’t be comparing usernames from a list anymore. * Bad actors cannot spoof URLS since we are no longer loading URLS anymore. * Skilled Programmers can set up API applications to automatically add & remove players from roles depending on certain factors (like if they subscribed/unsubscribed) * Since we aren’t relying on external services like GitHub or pastebin anymore, we don’t need to worry about services going down or some people not having Untrusted URLS enabled. This is why I have included the “GroupID” Variable in the GroupAPI nodes, as having access to external groups would make that possible. Quick note: I have thought about people potentially abusing the GroupAPI to spy on players and see what groups they are in, but the amount of time this would take as well as the fact that the player actually has to be IN the world for the GroupAPI to check makes me think that people won’t go through all this trouble. Besides, you can see what groups people are in by simply visiting their profile. If you are really worried about it, you could just make it so if the user has the group hidden from everyone on their profile, it will not show them in the GroupsAPI. GetGroupBanner can be used for automatic decoration of a group instance, like changing a banner above the entrance to the group’s banner. Getting the GroupID of the group hosting an instance is crucial not only for the rest of the nodes but also having verification, What I would do is have a list of group ID’s that correspond to groups I know follow the guidelines set in place by us, and that they follow the VRChat TOS. If the current group ID is on the list then I can show a little “Trusted Group” Icon somewhere to inform new users that they can trust the group.
7
Allow VRCImageDownloader to download and downscale images larger than 2048x2048px
Today, the most popular use case of the IVRCImageDownload is to share some picture with friends in VRChat. However, there is one big annoying behavior in IVRCImageDownload for this use case. That's 2048x2048 texture size limit. Therefore, I hope VRChat to have the feature that automatically scale the texture size down to 2048x2048. As described before, it's common to use IVRCImageDownload for sharing pictures with friends. There are several assets specifically designed for this use case such as Image Pad and ImageTablet . However, the 2048x2048 size limit is an annoying for this use case because today picture is likely to exceed this limit. For example, my iPhone 12 mini with default settings will take picture with 4032x3024 pixels and other modern smartphones also take high resolution image by default. In VRChat, I feel it’s common to choose take pictures in QHD, 4K, or 8K but none fits 2048x2048 limit. (FHD and HD fits 2048x2048 though we want to take high-quality pictures.) The texture downloaded with IVRCImageDownload become uncompressed RG, RGB or RGBA texture on the VRAM so It take huge VRAM. Therefore, I think it's reasonable to limit texture size on the VRAM. However, I think it's possible to resize texture down to 2048 off the main thread before loading to to the VRAM. That’s why I request VRChat to have the feature that automatically scale the texture size down to 2048x2048. 日本語要約 IVRCImageDownloadという Image Pad や ImageTablet のような画像を共有するためのアセットで使われている機能に対する要望です。 前述のタブレットではVRChatの制限により2048x2048より大きい画像を指定した場合にはエラーになりますが、エラーにする代わりに 2048x2048 以下に自動的にリサイズするオプションを追加してほしいという要求になります。 (技術的理由により2048x2048より大きい画像をそのまま表示するのは厳しいです) このオプションがあれば、Discordなどに上げた画像を共有するときにエラーが出て使えないという面倒事を減らせるようになります。
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