2020 Content Creation User Group week #4 summary

RioSisco Studio Pictures, December 2019 – blog post

The following notes are taken from my audio recording of the Content Creation User Group (CCUG) meeting held on Thursday, January 23rd 2020 at 13:00 SLT. These meetings are chaired by Vir Linden, and agenda notes, meeting SLurl, etc, are available on the Content Creation User Group wiki page.

Environment Enhancement Project

Project Summary

A set of environmental enhancements (e.g. the sky, sun, moon, clouds, and water settings) to be set region or parcel level, with support for up to 7 days per cycle and sky environments set by altitude. It uses a new set of inventory assets (Sky, Water, Day), and includes the ability to use custom Sun, Moon and cloud textures. The assets can be stored in inventory and traded through the Marketplace / exchanged with others, and can additionally be used in experiences.

Resources

Current Status

  • EEP is now viewed as a priority for release by the Lab.
  • Work is continuing on the final bug fixes on the graphics side.
  • Release is anticipated by LL to be within the next month or so.
  • Those who use windlights for photography or within their regions are strongly urged to test the EEP RC viewer (last updated on January 9th, 2020, at the time of writing this summary).

Project Muscadine

Project Summary

Currently: offering the means to change an Animesh size parameters via LSL.

Current Status

  • Now officially on hold pending other projects / work (notably major projects such as:
    • The cloud migration project.
    • Transitioning the viewer build tools to Visual Studio 2017 and to a recent version of Xcode (OS X)
    • Completing the migration of viewer repositories from Mercurial to Github.
  • The status of the project will be reviewed as other work progresses, but it is unlikely there will be any further work on Muscadine in Q1 2020 (through until the end of March).

ARCTan

Project Summary

An attempt to 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models with mesh), and to update the calculations to reflect current resource constraints, rather than basing them on outdated constraints (e.g. graphics systems, network capabilities, etc).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

As of January 2020 ARCTan has effectively been split:

  • Immediate viewer-side changes, primarily focused on revising the Avatar Rendering Cost (ARC) calculations.
    • This work will also involve providing additional viewer UI so that people can better visibility and control to seeing complexity. For example:
      • Which attachments are taking the most rendering resources / rendering time.
      • Available options for improving local performance.
    • The aim is to provide users with information they can understand and make use of to assist in their local performance (e.g. “these red figures on your avatar attachment mean it is impacting YOUR system’s performance and slowing YOU down”, rather than jut pointing the finger elsewhere).
    • It is hoped that providing this information may also encourage creators produce better, more efficient avatar-related content.
  • Work on providing a UI for in-world object rendering costs (LOD models, etc.) which might affect Land Impact has been deferred to a later tranche of project work.
  • The belief is that “good” avatar ARC values can likely be used as a computational base for these rendering calculations.

In Brief

LOD product: LL is considering taking future look at how level of detail is managed by Second Life.

  • GLOD is now 15+ years old and there are potentially better ways to handle things.
  • Automation of some LOD options might be seen as possible.
  • It is recognised that avatar LODs are not the most efficient (e.g. 2X bounding box LODs), but how they might be better managed is seen as a complex issue (e.g. avoiding situations where the viewer uses one LOD for an avatar’s body and another for the avatar’s head, so the head looks deformed compared to the body, or vice-versa).

Content Tools: interest was also expressed in hearing about the preferred tools used by creators and what creators might like to see by way of better support for said tools / file formats related to said tools and in general. The question was not asked with any specific project in mind, but simply to gain a broader understanding of what content creators use, etc.

The tools mentioned by creators at the meeting include:

  • Clothing: Marvelous Designer, Blender, Maya, Substance Painter, 3D Coat.
  • Other tools mentioned: Topogun, Zbrush.

PBR was also mentioned, although this would require a large-scale overall of SL’s rendering engine.

Requests were also made for:

  • Better handling of sub-meshes during the upload process (e.g. consistent linking between different uploads of the same multi-part mesh).
  • Ability for mesh instance recognition (e.g. if a specific sub-mesh is repeatedly used in a build, then it should be uploaded only one and instanced across the build) – or at least the viewer to be able t instance sub-mesh elements when rendering.

 

2020 Simulator User Group week #4 summary

Souls of Dreams, November 2019 – blog post

Simulator Deployments

  • There were no deployments to the main SLS channel on Tuesday, January 21st, although there are reports some regions were restarted.
  • An RC deployment is planned for Wednesday, January 22nd, but no details were available at the time of writing.

Simulator Issues

  • Some region holders are still reporting script runtime issues. There may be some work in the RC deployment to help with these issues, but again, this wasn’t clear at the SUG meeting, due to the lack of release notes.
  • There is some work to help manage scripted attachments and vehicles during region crossings, but no specifics given.
  • There have been reports of object_rez() events randomly failing. It’s not clear how widespread the issue is, but it is a known issue with the Lab, but a reliable reproduction of the problem has yet to be reported / found.

SL Viewer

There have been no viewer updates to marks the start of the week, leaving the official pipelines as follows:

  • Current Release version 6.3.5.533275, formerly the Wassail RC viewer, dated December 4, promoted December 12. – No change.
  • Release channel cohorts:
  • Project viewers:
    • Copy / Paste viewer, version 6.3.5.533365, December 9, 2019.
    • Project Muscadine (Animesh follow-on) project viewer, version 6.4.0.532999, November 22, 2019.
    • Legacy Profiles viewer, version 6.3.2.530836, September 17, 2019. Covers the re-integration of Viewer Profiles.
    • 360 Snapshot project viewer, version 6.2.4.529111, July 16, 2019.

2020 viewer release summaries week #3

Logos representative only and should not be seen as an endorsement / preference / recommendation

Updates for the week ending Sunday, January 19th

This summary is generally published every Monday, and is a list of SL viewer / client releases (official and TPV) made during the previous week. When reading it, please note:

  • It is based on my Current Viewer Releases Page, a list of all Second Life viewers and clients that are in popular use (and of which I am aware), and which are recognised as adhering to the TPV Policy. This page includes comprehensive links to download pages, blog notes, release notes, etc., as well as links to any / all reviews of specific viewers / clients made within this blog.
  • By its nature, this summary presented here will always be in arrears, please refer to the Current Viewer Release Page for more up-to-date information.
  • Note that for purposes of length, TPV test viewers, preview / beta viewers / nightly builds are generally not recorded in these summaries.

Official LL Viewers

  • Current Release version 6.3.5.533275, formerly the Wassail RC viewer, dated November 5th, 2019 – No change.
  • Release channel cohorts:
    • Xanté Maintenance RC viewer, updated to version 6.3.6.533748, January 13th, 2020.
  • Project viewers:
    • No updates.

LL Viewer Resources

Third-party Viewers

V6-style

  • No updates.

V1-style

  • Cool VL viewer updated to version 1.26.24.6 (Stable) on January 18th (release notes).

Mobile / Other Clients

  • No updates.

Additional TPV Resources

Related Links

2020 Simulator User Group week #3 summary

The Four Seasons, November 2019 – blog post

Simulator Deployments

There are no server deployments planned for week #3 due to the next batch of updates being ready for deployment.

Simulator Issues

  • There are still reports of recent simulator updates causing issues for certain types of breedables. The Lab is aware of these problems, and while fixes are in the works, they may not be in the next set of simulator updates.
  • LL has continued a post-mortem into the region restart issues from week #2, with Simon Linden noting they have hopefully learned enough such that future restarts such run a lot better (and hopefully more smoothly!).
  • “A couple of hosts” that were not handling teleports as expected at the end of week #2, which should have been corrected.
  • Additional data that the Lab has been gathering on simulator performance does show that long-running simulators incur increased host resource utilisation, but for reasons yet to be identified.
    • Scripted avatar loads might in part be responsible, depending on what their scripts are doing, but LL would prefer to gather further data rather than speculate on possible causes.
    • However, there are regions where issues have been recorded, but which do not have large avatars loads.
    • LL have tried multiple approaches to making similar slow-downs occur on the beta grid (Aditi), but the problem doesn’t appear to occur “on demand”, making possible causes harder to identify.

SL Viewer

The Xanté Maintenance RC viewer updated to version 6.3.6.533748 on Monday, January 13th.

The remainder of the current official viewer pipelines remain unchanged for the end of week #2:

  • Current Release version 6.3.5.533275, formerly the Wassail RC viewer, dated December 4, promoted December 12 – No change.
  • Release channel cohorts:
  • Project viewers:
    • Copy / Paste viewer, version 6.3.5.533365, December 9th, 2019.
    • Project Muscadine (Animesh follow-on) project viewer, version 6.4.0.532999, November 22nd , 2019.
    • Legacy Profiles viewer, version 6.3.2.530836, September 17th, 2019. Covers the re-integration of Viewer Profiles.
    • 360 Snapshot project viewer, version 6.2.4.529111, July 16th, 2019.

In Brief

  • Rider Linden is looking at region crossings, and hopes to have some code that should help improve things when it is ready for deployment. However, he notes that the improvements will be “nowhere near what I would ultimately like.

2020 viewer release summaries week #2

Logos representative only and should not be seen as an endorsement / preference / recommendation

Updates for the week ending Sunday, January 12th

This summary is generally published every Monday, and is a list of SL viewer / client releases (official and TPV) made during the previous week. When reading it, please note:

  • It is based on my Current Viewer Releases Page, a list of all Second Life viewers and clients that are in popular use (and of which I am aware), and which are recognised as adhering to the TPV Policy. This page includes comprehensive links to download pages, blog notes, release notes, etc., as well as links to any / all reviews of specific viewers / clients made within this blog.
  • By its nature, this summary presented here will always be in arrears, please refer to the Current Viewer Release Page for more up-to-date information.
  • Note that for purposes of length, TPV test viewers, preview / beta viewers / nightly builds are generally not recorded in these summaries.

Official LL Viewers

  • Current Release version 6.3.5.533275, formerly the Wassail RC viewer, dated November 5th, 2019 – No change.
  • Release channel cohorts:
    • Love Me Render RC viewer updated to version 6.3.6.534234 on January 9th.
    • EEP RC viewer updated to version 6.4.0.534193 on January 9th.
  • Project viewers:
    • No updates.

LL Viewer Resources

Third-party Viewers

V6-style

  • No updates.

V1-style

  • No updates.

Mobile / Other Clients

  • No updates.

Additional TPV Resources

Related Links

2020 TPVD meetings week #2 summary

Frogmore, November 2019 – blog post

The following notes are taken from the TPV Developer meeting held on January 10th, 2020. A video of the meeting is embedded below, my thanks to Pantera for recording and providing it. As always:

  • Time stamps are given with links that will open the video at the appropriate point in a separate browser tab for reference.
  • Core points of the meeting are listed below. Other subjects of lesser import may have been discussed, please refer to the video.

SL Viewer News

[0:44-2:27]

On Thursday, January 9th, 2020, the following RC viewers updated as follows:

The rest of the viewer release pipelines remain unchanged:

  • Current Release version 6.3.5.533275, formerly the Wassail RC viewer, dated December 4, promoted December 12 – No change.
  • Release channel cohorts:
    • Xanté Maintenance RC viewer, version 6.3.6.533748, December 19.
  • Project viewers:
    • Copy / Paste viewer, version 6.3.5.533365, December 9.
    • Project Muscadine (Animesh follow-on) project viewer, version 6.4.0.532999, November 22.
    • Legacy Profiles viewer, version 6.3.2.530836, September 17. Covers the re-integration of Viewer Profiles.
    • 360 Snapshot project viewer, version 6.2.4.529111, July 16.

General Viewer Notes

  • Both the Xanté Maintenance RC and the Legacy Profiles Viewer have updates that are “close” to appearing in the current viewers list, with Xanté possibly being close to promotion as the de facto viewer as well.
  • As per my week #2 CCUG summary, EEP is still pending the fixing of around a dozen graphics-related issues.
  • The Camera Presets Viewer, designed to allow users to set and save their own preferred camera presets in their viewer without having to use debug settings, is now closing on being “feature complete” and ready for release either as a Project or RC viewer.
    • This capability is being developed as a viewer code contribution by Jonathan Yap (who was responsible for developing the Graphics Presets options).
    • More information on the work can be found in STORM-2145.

Mercurial to Github Migration

[2:29-3:45]

Bitbucket, used to manage viewer repositories) will be sunsetting support for Mercurial in early 2020. Because of this, Linden Lab has been migrating their viewer repositories from Mercurial to Git on Bitbucket.

  • Most of the Lab’s viewer development is now processed via Git.
  • There is some work remaining on converting all of the third-party package repositories, and this is being done as part of the Visual Studio 2017 / Xcode upgrade, rather than being part of the Git migration per se, as these are relatively stable and not seen as a major problem in terms of migrating them.
  • A document outlining the steps in migration has been provided specifically for TPVs to allow them to keep in sync with how LL main the viewer code and its branches. See: Viewer Repository Migration (Google Docs).
    • This is not the only way for TPVs to manage their own repositories, but it is the one that LL recommend for those wishing to reflect how LL manages things.

Visual Studio / Xcode Build Process Update

[4:58-7:30]

The VS 2017 / Xcode upgrade has been caught with a couple of issues:

  • The Boost library used to implement coroutines in the build process would not build using VS 2017 & required conversion to Boost Fibre, which it turn had a number of impacts that also needed to be resolved.
  • Currently, the project is caught on a GIT-related issue, with validating the integration scripts used in the build process, and which is still being worked on.

It’s hoped that the additional work involved in moving the build process to support VS 2017 should make a future move to using VS 2019 easier.

Deprecating Windows 7 Support

[3:48-4:28]

  • Windows 7 officially reaches its end of life on January 14th, 2020. After this date, patches and security updates, etc., will no longer be provided, and the company is unlikely to provide any support.
  • Linden Lab has officially blogged on the subject, which I also blogged about as well.

In Brief

  • [7:55-8:30] There has been no work on the Linux front for official viewer over that last few months, and while still on the road map, is seen as a fairly low priority item, sitting well behind the Git migration, build tools updates, general viewer development and – particularly – the work in transitioning Second life to the AWS cloud.
  • [9:32-10:55] Week #2 restarts. While not generally a part of TPVD meetings, the issues with the Tuesday, January 7th server restarts was mentioned, with Grumpity noting:

It was a rocky day on Tuesday. It came out of our desire to do things in a less disruptive manner and … once again, the road to downtime was once again paved with good intentions, because that way proved to be in no way less disruptive than if we had done things the regular way.

Essentially, the issue was with some restart code that hadn’t been used in a while, and which LL had thought had been fully tested, but when put to use proved to have issues.

  • [15:33-20:23] A reminder was given that – particularly after a viewer crash –  it is better to wait for a short period, rather than immediately trying to re-log (particularly if the warning about logging back in is displayed). This is because each failed attempt refreshes your avatar presence, interfering with the post-crash clean-up (the “you are currently being logged out” part of the message).
    • Note: this part of the meeting included an extensive chat discussion on auto-relogging, as can be present in mobile and other clients, such as Lumiya and Radegast that continues through until the end of the meeting. Please refer to the video for more on this.