2019 SL User Groups 36/2: TPVD meeting

Lost Lagoon, July 2019 – blog post

The following notes are taken from the TPV Developer meeting held on September 6th, 2019. A video of the meeting is embedded below, my thanks as always to Pantera for recording and providing it.

This was a meeting with a lot of text chat that didn’t generate a meaningful discussion. Therefore, only key points are recorded below.

SL Viewer News

[0:19-3:10]

The Umeshu maintenance RC updated to version 6.3.1.530559 on September 5th. All other viewers remain as follows:

  • Current Release version 6.3.0.530115, formerly the Bakes on Mesh RC viewer, promoted August 26th – NEW.
  • Release channel cohorts:
  • Project viewers:
    • Project Muscadine (Animesh follow-on) project viewer, version 6.4.0.530100, August 19.
    • 360 Snapshot project viewer, version 6.2.4.529111, July 16.
    • Legacy Profiles viewer, version 6.2.3.527749, June 5. Covers the re-integration of Viewer Profiles.
  • Linux Spur viewer, version 5.0.9.329906, dated November 17, 2017 and promoted to release status 29 November 2017 – offered pending a Linux version of the Alex Ivy viewer code.
  • Obsolete platform viewer, version 3.7.28.300847, May 8, 2015 – provided for users on Windows XP and OS X versions below 10.7.

Brief Notes on Viewers

  • The Umeshu RC maintenance viewer will likely be promoted to release status in week #37 (commencing Monday, September 9th).
  • The voice viewer is still in progress, but has yet to surface as a publicly-available viewer.
  • Snapshot project viewer:
    • There are allegedly titling issues when taken very high resolution images with ALM and SSAO enabled.
    • There are also HUD appearance issues with hi-res snapshot and the option to include HUDs in images enabled, as per BUG-227587.
  • [3:33-4:30] EEP has further fixes on the rendering front, which are with the Lab’s QA team, so an updated to the RC viewer can be anticipated in the next week or so. This is unlikely to be the last RC update. However, if anyone testing the viewer has issues they are not aware of having been reported, they are asked to ensure they raise a bug report.

ARCTan

[3:10-3:33]

Project Summary

An attempt re-evaluate object and avatar rendering costs to make them more reflective of the actual impact of rendering both. The overall aim is to try to correct some inherent negative incentives for creating optimised content (e.g. with regards to generating LOD models with mesh), and to update the calculations to reflect current resource constraints, rather than basing them on outdated constraints (e.g. graphics systems, network capabilities, etc).

Current Status

  • More focus is being put into this project, but there is still a fair amount of “catch-up” to do.
  • Current focus remains on data gathering.
  • It will still be some time before users start to see anything visible surfacing for this work.

In Brief

Group Related

  • [5:35-7:10] Recent tweaks to improve group chat lag has resulted in some issues for group chat moderation. LL is aware of the problems and a fix is in the works.
    • In the meantime, LL continue to carry out careful experiments and adjustments to the group chat system to try to make it more responsive.
  • [12:00-22:00] – largely text chat
    • BUG-10804 – Group Role count inaccuracies: this is a long-running issue with groups with more than 5,000 members, one outcome of which means it’s not always possible to see who is assigned to specialist roles within a group, as they are not listed – and it is impossible to remove roles from users (where they no longer require them) if the user isn’t listed.
    • BUG-11269 – group profile shows an incorrect membership number.
    • Part of the comments were around removing inactive accounts – however, the Lab is loathe to do this, due to the number of users who leave SL and return with a request the LL reactivate their account.

Inventory

  • [7:20-7:55] BUG-227179 – off-line inventory offers from scripted objects are lost. This is awaiting resources to be worked on.

2019 SL User Groups 34/3: TPVD meeting

Autumn Trace; Inara Pey, July 2019, on FlickrAutumn Trace, July 2019 – blog post

The following notes are taken from the TPV Developer meeting held on Friday, August 23rd, 2019. A video of the meeting is embedded below, my thanks as always to Pantera for recording and providing it. The key points of discussion are provided below.

This was another  short meeting with a lot of general text chat, not reflected in these notes.

SL Viewer News

[0:10-5:45]

  • Current Release version 6.2.4.529638, formerly the Love Me Render RC viewer dated August 5th, promoted August 12th – NEW.
  • Release channel cohorts:
  • Project viewers:
    • Project Muscadine (Animesh follow-on) project viewer, version 6.4.0.530100, August 19th.
    • 360 Snapshot project viewer, version 6.2.4.529111, July 16th.
    • Legacy Profiles viewer, version 6.2.3.527749, June th5. Covers the re-integration of Viewer Profiles.
  • Linux Spur viewer, version 5.0.9.329906, promoted to release status 29th November 2017 – offered pending a Linux version of the Alex Ivy viewer code.
  • Obsolete platform viewer, version 3.7.28.300847, May 8th, 2015 – provided for users on Windows XP and OS X versions below 10.7.

Bakes on Mesh

As per my August 22nd Content Creation User Group meeting notes, the Lab is hoping to promote Bakes on Mesh (BoM) to release status in week #35 – possibly as early as Monday, August 26th, 2019.

Umeshu RC

This is ready for promotion, but has been held back as the Lab want to get Bakes on Mesh promoted to release. Umeshu therefore looks most likely to be promoted in the near future. However, if there are late-breaking issues with BoM, the Umeshu RC could be promoted in its place.

EEP

As well as the rendering issues currently being addressed, there is apparently one new simulator bug that is being investigated.

Voice Viewer

There is an upcoming Voice RC viewer, intended to address various voice drop-out issues. It may also have an update SLvoice.exe binary. This is currently awaiting a fix prior to being surfaced in the Alternate Viewers page / the available viewers index page.

In Brief

  • Bitbucket: used to manage viewer repositories) will be sunsetting support for Mercurial; Linden Lab will therefore be switching to git on bitbucket for their repositories. However, the work is not seen as currently being urgent, with Oz Linden noting (via e-mail):

Clearly, how the TPVs handle this needs to depend on your own plans – particularly whether that’s staying with Mercurial hosted some other way or changing to Git (or something else). We will transition to git within bitbucket, preserving full history and as much as possible the ability to work in both during the transition.

When we have a plan in place, which will take some time, we’ll put it on the agenda.

  • There may be updates to both the Singularity (in progress) and Alchemy (possibly) before year-end.
  • Trivia:
    • Linden Lab have a quarterly internal review mechanism they call Review-O-Matic for setting staff goals and reviews. It is, according to Grumpity Linden, “neatly packaged with a tradition of eating treats”.
    • One Linden staffer owns an alpaca farm. This prompted a brief discussion on whether alpaca are cute pets or food. I opted to go with both, suggesting: The Alpaca (vicugna pacos): Loveable pet or delicious dish?“. I may have caused some distress to Whirly Fizzle, who puts alpaca firmly in the “pet” category 😀 .

2019 SL User Groups 32/2: TPVD meeting

Witchwood; Inara Pey, June 2019, on FlickrWitchwood, June 2019 – blog post

The following notes are taken from the TPV Developer meeting held on Friday, August 9th, 2019. A video of the meeting is embedded below, my thanks as always to Pantera for recording and providing it. The key points of discussion are provided below with time stamps to the relevant points in the video, which will open in a separate tab when clicked.

This was another  short meeting.

SL Viewer

[0:34-3:12]

The Umeshu Maintenance RC viewer updated to version 6.2.4.529755 on Wednesday August 7th.

The remaining pipelines are as follows:

  • Current Release version 6.2.3.527758, formerly the Rainbow RC viewer dated June 5th, promoted June 18th – No Change.
  • Release channel cohorts:
  • Project viewers:
    • 360 Snapshot project viewer, version 6.2.4.529111, July 16th.
    • Legacy Profiles viewer, version 6.2.3.527749, June 5th. Covers the re-integration of Viewer Profiles.
  • Linux Spur viewer, version 5.0.9.329906, promoted to release status 29th November 2017 – offered pending a Linux version of the Alex Ivy viewer code.
  • Obsolete platform viewer, version 3.7.28.300847, May 8th, 2015 – provided for users on Windows XP and OS X versions below 10.7.

Viewer Promotions

The hope is that some of the current four RC will gain promotion to full release status in August, as the bug list on all of them is “really small”.

In Brief

Inventory Issues, Fixes and Log-in Changes

[3:34-10:50]

  • Some Firestorm users are reporting an uptick in inventory issue, such as corruptions. It appears that, while usually a last resort, clearing inventory cache may correct it if it occurs.
  • There is some work being carried out by the Lab that improves their ability to fix back-end inventory issues. This work is getting an “unusually thorough” QA pass, so may be a while before it is ready for support deployment.
  • Also, the Lab is working on a new log-in process that adds more checks to the inventory queries performed during log-in.
    • Currently, some of the queries, a necessary part of the log-in process, can be subject to database look-up failures that go unreported to the viewer, leading to inventory issues for the user.
    • The new process will ensure that if a query fails, an error message will be returned to the viewer, allowing it to request further look-ups. However, it will be a while before this enters production.
  • A reminder that large flat inventories (e.g. thousands of items on the same level) can cause the inventory queries to time-out and log-in to time-out. Should this happen, an inventory transform can be requested from support, which breaks large flat inventories down into a folder structure.

Second Life Engineering Jobs

[16:23-17:25]

  • The position for a Second Life Senior Graphics Engineer remains open.
  • A new position has opened for a software engineer (C++). Oz linden “would love” to recruit someone who has the relevant experience / background and who is a Second Life resident.
  • Applicants need to be US residents.

2019 SL User Groups 30/3: TPVD Meeting and Singularity

Summer Edge; Inara Pey, June 2019, on FlickrSummer Edge, June 2019 – blog post

The following notes are taken from the TPV Developer meeting held on Friday, July 26th, 2019. A video of the meeting is embedded below, my thanks as always to Pantera for recording and providing it. The key points of discussion are provided below with time stamps to the relevant points in the video, which will open in a separate tab when clicked.

This was a short meeting with text chat around animation systems and options – please refer to the video for details.

SL Viewer

[0:00-1:48]

There have been no changes through the week with regards to the viewer pipelines. With the SL Feature Summit in week #31, it likely means there will be no updates then, either.

  • Current Release version 6.2.3.527758, formerly the Rainbow RC viewer promoted June 18th – No Change.
  • Release channel cohorts:
  • Project viewers:
    • 360 Snapshot project viewer, version 6.2.4.529111, July 16th.
    • Legacy Profiles viewer, version 6.2.3.527749, June 5th. Covers the re-integration of Viewer Profiles.
  • Linux Spur viewer, version 5.0.9.329906, promoted to release status 29th November 2017 – offered pending a Linux version of the Alex Ivy viewer code.
  • Obsolete platform viewer, version 3.7.28.300847, May 8th, 2015 – provided for users on Windows XP and OS X versions below 10.7.

Both Love Me Render and Rakes On Mesh are considered as being “very close” to promotion. However, as noted in my notes from the Content Creation meeting, BOM is going to be going through a QA review at the Lab, so Love Me Render might be the nearer of the two in terms of suitability for promotion.

SL Feature Summit

[1:51-2:00]

As noted, there is a SL Feature Summit in week 31, so there will also be no simulator releases next week.

Other Topics

UDP Messaging – Further Deprecation

[22:29-23:48]  There are still “a couple” of inventory-related UDP operations that need to be deprecated. This will not be a short-term change, however, as the corresponding HTTP operations handling has yet to be written. Once they have been, the UDP operations will be removed from the official viewer. Time – measured in months – will be allowed for TPVs to adopt the HTTP before the UDP is deprecated on the back end.

In Brief

  • [3:10-5:50] Can we have more than two shadow casting projectors? Short answer: not without measuring performance impact. Long answer: no further rendering type changes are up for consideration until after Love Me Render, EEP and BOM have been released. See also STORM-2147.
  • [4:04-4:17] OS X and OpenGL deprecation: the lab is still investigating options for Mac support after Apple deprecates OpenGL support.
  • [9:38-10:45] BUG-227350 – a feature request to allow LSL scripted toggling of voice on / off, which could be useful for guest-moderate talks, etc., when a land owner isn’t present – has been accepted by the Lab for consideration, but with the caveat the potential for abuse may prevent it being implemented. However, it stands as a good example of how to submit a feature request.

Singularity News

[16:59-17:33] Singularity was one of the viewers affected by the majority of UDP asset messaging paths being deprecated and removed from the back-endcode recently. While there are Singularity nightly builds to overcome the issue, there has yet to be an official full release – although this is being worked on. Commenting at the TPVD meeting, Inusaito Kanya stated:

We’re nearing release very soon, the build directed to on our site right now is http://links.singularityviewer.org/?to=nightly because we really don’t want anyone getting the UDP assets. We have Linux ready mostly and we’re working on a couple last minute fixes here and there but otherwise we should be good. Mostly graphics fixes and last minute UI touches[ still to be done].

 

2019 SL User Groups 28/2: TPV Developer Meeting

Sweet Paradise; Inara Pey, June 2019, on FlickrSweet Paradise, June 2019blog post

The following notes are taken from the TPV Developer meeting held on Friday, July 12th, 2019. A video of the meeting is embedded below, my thanks as always to North for recording and providing it. The key points of discussion are provided below with time stamps to the relevant points in the video, which will open in a separate tab when clicked.

This was a short meeting with a lot of non-specific text chat. Please refer to the video for details.

SL Viewer

[1:19-3:20]

The Bakes on Mesh RC viewer updated to version 6.3.0.529185 on July 11th.

Viewer Pipelines

The remaining LL viewer list looks like:

  • Current Release version 6.2.3.527758, formerly the Rainbow RC viewer dated June 5, promoted June 18th – No Change.
  • Release channel cohorts:
  • Project viewers:
    • Legacy Profiles viewer, version 6.2.3.527749, released on June 5th. Covers the re-integration of Viewer Profiles.
  • Linux Spur viewer, version 5.0.9.329906, dated November 17th, 2017 and promoted to release status 29th November 2017 – offered pending a Linux version of the Alex Ivy viewer code.
  • Obsolete platform viewer, version 3.7.28.300847, May 8th, 2015 – provided for users on Windows XP and OS X versions below 10.7.

Anticipated Viewer Updates

  • A further iteration of the EEP RC viewer is with QA and should appear in week #29 (week commencing Monday, July 15th).
  • Bakes on Mesh is expected to go through at least one further RC iteration, although it is believed that all viewer-side required fixes have now been implemented.
  • The July 9th Love Me Render (rendering pipe improvements / fixes) update moved that viewer closer to being ready for possible promotion to release status.
  • The 360 Snapshot viewer has now been merged up to the current LL viewer release and is undergoing testing, so should be re-appearing as a project viewer soon.

Viewer Build Process

[18:23-20:54]

The update of the viewer build process using Visual Studio 2017 / the latest Xcode is still stuck on a required update (to boost::fibers), and will likely remain that way for another week or so.

Texture Fetching / Texturing Caching Project

[21:01-23:05]

The project to improve texture fetching and caching in the viewer, which has been on hold for some time, is expected to re-start very soon. This work will likely including experimenting with using the HTTP/2 library, rather than the current curl library; this is also the project that includes support for higher texture memory in the official viewer as well as large on-disk caches. All of which, it is hoped will result in a noticeable performance improvement.

Other Topics

  • [5:15-7:23] It’s been noted the final deprecation of asset UDP messaging may be affecting the session times for scripted agent drivers built over LibOpenMetaverse, and the Lab threw out a question to open-source devs as to whether they could provide further information.
  • [27:02-27:40] There are some improvements coming to search, but it is too soon to say exactly how these will be reflected in the viewer; currently the focus is on improving the search infrastructure.
  • [29:40-31:25] work is continuing on the re-introduction of the “legacy” Profile floater. However, there are web-side changes needed (e.g. the feed needs to be turned into an API end-point). There is no planned simulator changes for this change, so profiles won’t be capabilities-driven.

2019 SL User Groups 26/3: TPV Developer Meeting

Atonement; Inara Pey, May 2019, on FlickrAtonement, May 2019 – blog post

The following notes are taken from the TPV Developer meeting held on Friday, June 28th, 2019. A video of the meeting is embedded below, my thanks as always to North for recording and providing it. The key points of discussion are provided below with time stamps to the relevant points in the video, which will open in a separate tab when clicked.

There are assorted text chat discussions scattered throughout the video covering various topics (e.g. Firestorm code that exposed a viewer setting to show the physics shapes of mesh objects, general discussion of LL hiring, avatar dot colours on the map, and opinions on a “lite” version of the viewer (remember the Basic viewer?), the technicalities of multi-threading, etc). These are not necessarily referenced in the notes below – please refer to the video.

SL Viewer

[1:30-7:00]

Recent Updates

  • As noted in my Content Creation summary, the Bakes On Mesh viewer is once again available with version 6.3.0.528495. This includes:
    • A new inventory icon for the “universal” wearable type.
    • A fix for a serious security issue type of bug.
  • The Love Me Render RC updated on Wednesday, June 26th to version 6.2.4.528505.
  • The Umeshu RC viewer updated on Thursday, June 27th to version 6.2.4.528492.

All of these RC viewer should now have parity with the current release viewer.

Note: at the time of writing, these viewers only appear on the Alternate viewers page; they are not listed on the the index of available viewers.

Viewer Pipelines

The remaining LL viewer list looks like:

  • Current Release version 6.2.3.527758, formerly the Rainbow RC viewer dated June 5th, promoted June 18th.
  • Release channel cohorts:
  • Project viewers:
    • Legacy Profiles viewer, version 6.2.3.527749, dated June 5th. Covers the re-integration of Viewer Profiles.
  • Linux Spur viewer, version 5.0.9.329906, dated November 17th, 2017 and promoted to release status November 29th, 2017 – offered pending a Linux version of the Alex Ivy viewer code.
  • Obsolete platform viewer, version 3.7.28.300847, dated May 8th, 2015 – provided for users on Windows XP and OS X versions below 10.7.

Additional Viewer Notes

  • Currently the BOM and EEP viewers appear vying for promotion to de facto release status. A new EEP RC is anticipated in early week #27 (commencing Monday, July 1st). It is hoped that both viewers are now functionally ready for release, and that both will go through promotion to release status by the end of July. Of the two, the more likely for promotion first is BOM – but this is not an absolute.
    • [9:40] The potential closeness of BOM and EEP going to release status relative to one another may raise questions within some TPV groups as to how to best handle them (.e.g. individual release or a combined release with both).
  • It is hoped that other projects – notably the texture fetching / texture caching re-write project – can start to be carried forward once more, with project viewers surfacing as a result at some point.
  • If the texture fetching can be improved, the Lab might also look at inventory fetching, although the two are somewhat different. There is already some work going on with the inventory back-end, which could also lead to opportunities to work on the viewer side of inventory handling.
  • [10:55-11:50 and 46:00-47:25] The 360 Snapshot project viewer has been brought up to parity with the current release viewer, and is currently awaiting QA. It should hopefully be returning to the viewer list soon™, and work should resume on the 360 snapshot function itself in the near future.
  • [12:52-14:26] Apple OpenGL deprecation: the Lab is working on a strategy to deal with this, but it is “too soon” for detailed discussion, however, part of it is dependent on the Lab getting an additional graphics engineer hired to work on SL.

Viewer Build Process

An issue with the new viewer build process using Visual Studio 2017 / the latest Xcode has been identified and hopefully rectified. The process will therefore be going to QA. Providing all goes well, the build process will then be deployed to the viewer build farm.

Script Processing Issues

[26:14-26:50]

The simulator updates that will hopefully improve script run time issues (see  BUG-226851 and BUG-227099) mentioned in my Content Creation summary, are unlikely to be deployed until at least week #28 (week commencing Monday, July 8th).

Other Topics

  • [7:01-8:00 and 28:22-29:00] There will be no viewer releases at the end of week #27, nor will there be any simulator RC channel deploys on Wednesday, July 3rd, due to the July 4th break. Similarly, there will be a period at the end of July / start of August with no releases / updates, as the SL team will be having their summer planning summit.
  • {21:15-25:15] iOS companion app: work has started on trying to get the initial test versions through Apple’s test process. It’s not clear how long this will take.
    • As per my summary and audio of Oz and April Linden’s Meet the Lindens session, this will initially be a basic communications app, allowing users to chat to others (users won’t even have an in-world location, per se).
    • Obviously, it is planned to evolve the app over time.
    • It’s not clear if users in-world will be able to discern if a user is on the iOS client.
    • Once the test version is available, iPhone users will require TestFlight on their ‘phones to play with it (hopefully, it should also run on iPads as well, although there may be some configuration differences).
    • Some of the back-end infrastructure the Lab is building is support of the app might be applicable to use with a web application, but that is not on the current plans.
  • [26:53-27:50] The Lab believe they have identified one of the causes of performance collapse when avatars teleport into a region. This is being queued up to be worked on.
  • [28:00-28:18] The latest versions of simulator code changes to help with region crossing and teleport issues should be fully deployed across the grid following the SLS (Main) channel deployment in week #27.
  • [32:00-43:30 – chat] Problems have been reported with ASCII characters used in group names displayed by the avatar tag taking time to correctly display in busy regions, which are notably seen with the Firestorm viewer, but which are proving difficult to reproduce in the official viewer. See: BUG26338.
    • This topic kicked off a length chat discussion that rolled into avatar dot colours on the map, viewer updates for avatar tags, etc.
    • The chat further rolled into a discussion of “why no VR in SL?”. Short answer: performance isn’t consider good enough to deliver a really comfortable VR experience, although non-LL driven tests have continued.
  • Having trouble with texture loading? I could be your system, depending on its age, but it also might be your anti-virus software – try explicitly whitelisting your viewer cache in you AV software and see if that helps.