The following notes were taken from the Tuesday, June 10th, 2025 Simulator User Group (SUG) meeting. They form a summary of the items discussed, and are not intended to be a full transcript. The notes were taken from my chat log of the meeting. No video this week.
Meeting Overview
- The Simulator User Group (also referred to by its older name of Server User Group) exists to provide an opportunity for discussion about simulator technology, bugs, and feature ideas.
- These meetings are conducted (as a rule):
- Every Tuesday at 12:00 noon SLT.
- In text (no Voice).
- At this location.
- Meetings are open to anyone with a concern / interest in the above topics, and form one of a series of regular / semi-regular User Group meetings conducted by Linden Lab.
- Dates and times of all current meetings can be found on the Second Life Public Calendar, and descriptions of meetings are defined on the SL wiki.
Simulator Deployments
- There are no planned deployments to any channels this week, only restarts.
- The Preflight RC will likely get a WebRTC update in the week; the simulator version won’t change but the service will be different – the release includes a fix for a file descriptor leak that lead to crashes. This does not require any viewer-side updates.
SL Viewer Updates
- Official Viewer: 2025.04 – 7.1.14.15192634334, issued May 25, promoted May 28 – No Change.
- Second Life Project glTF Mesh Import, version 7.1.14.15361077240 June 2 – No Change.
- Second Life Project Lua Editor Alpha (Aditi only), version 7.1.12.14888088240, May 13 – No Change.
In Brief
- Parcel boundaries:
- a long standing issue is that of people (mostly on Mainland) unexpectedly hitting parcels that are closed to public access (e.g. because the parcel edges onto a public road), and the ensuing confusion of getting bounced / losing the vehicle they are on, etc.
- Rider Linden is hoping to be able to take another look at this in the near future, in terms of making such events less chaotic.
Just to remind people … the parcel bounce is for vehicles entering a parcel. It would check the permissions of all sitters and deny entry if any one sitter couldn’t enter. Essentially it would “bounce” the whole vehicle.
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- The response from those at the meeting was generally positive to this, in that it would end the situation of avatars being unseated from a vehicle which might still be able to enter / pass through the parcel.
- SLua event handling proposal is being worked on – but exactly what this means could not be specified at the meeting.
- A general discussion on mesh, mesh physics, uploads and decomposition, which appeared largely driven by a user seeking clarification, which strayed over into the realm of region crashers.
- The subject of possibly deprecating pathfinding on the simulator (and potentially removing Havok from the viewer, allowing for an alternation for mesh decomposition came up at the meeting: see the In Brief section of my TPVD Meeting Summary for week #23 2025, for more.
- In addition, Leviathan Linden indicated that pulling “some” Havok dependencies from the viewer could make it easier for physics engine updates.
- The led to a lengthy discussion on how pathfinding might be replaced, concerns from those who are using it, with no definitive solutions.
† The header images included in these summaries are not intended to represent anything discussed at the meetings; they are simply here to avoid a repeated image of a rooftop of people every week. They are taken from my list of region visits, with a link to the post for those interested.
Inara Pey: Living in a Modemworld 