2018 SL UG updates 45/1: Simulator User Group

Florence Bay; Inara Pey, September 2018, on FlickrFlorence Bayblog post

Server Deployment Plans

As always, please refer to the server deployment thread for the latest news and updates.

  • On Tuesday, November 6th, the SLS (Main) channel was updated with server release 18#, previously deployed to the BlueSteel and LeTigre RCs, and comprising internal logging fixes. It is hopped that these updates will help with some crashing, particularly some regions that get into a crash loop.
  • On Wednesday, November 7th, 2018, the RC channels should be updated as follows:
    • BlueSteel and LeTigre will update to server maintenance package 18#, comprising a fix for Animesh land impact calculations – see below.
    • Magnum should be updated to server maintenance package 18#, also comprising a fix for Animesh land impact calculations – see below –  and also internal logging fixes.
    • Snack should also receive another iteration of simulator EEP support, release

RC Land Impact Calculation Revision

The Land Impact update being deployed to the RC channels is to correct an error in the Animesh code. In short, if an Animesh object has a conventional prim as its root, the required 15 LI for the Animesh skeleton is not applied.

This 15 LI is an aggregate value for Animesh arrived at during testing Animesh performance across a range of systems. It has also been subject to some alarmist blog posts about unexpected prim returns, but given Animesh products are not generally available as yet, this is unlikely.

SL Viewer

There have been no viewer updates from the Lab at the start of the week, leaving the various pipelines as per the end of week #44.

  • Current Release version, dated September 5, promoted September 26. Formerly the Rakomelo Maintenance RC viewer – No change.
  • Release channel cohorts:
    • Spotykach Maintenance RC viewer, version, October 30.
    • Animesh RC viewer, version, October 18.
    • Estate Access Management (EAM) RC viewer, version, September 28.
    • BugSplat RC viewer, version, September 10. This viewer is functionally identical to the current release viewer, but uses BugSplat for crash reporting, rather than the Lab’s own Breakpad based crash reporting tools.
    • Love Me Render RC viewer, version, released on August 20.
  • Project viewers:
  • Linux Spur viewer, version, dated November 17, 2017 and promoted to release status 29 November – offered pending a Linux version of the Alex Ivy viewer code.
  • Obsolete platform viewer, version, May 8, 2015 – provided for users on Windows XP and OS X versions below 10.7.

In Brief

HTTP “throttles”: there have been questions on what any  throttles on incoming / outgoing HTTP communications might be. In reply,  Simon and Oz Linden stated:

We don’t want to block any “reasonable” use of http in with throttles, for whatever that really means. Don’t expect to write anything fast and high-load with http in, however. I’d just generally say “keep it slow”. I think the original idea for http in (and out) was it was going to be web-page speed, not a twitch game.

– Simon Linden

The amount of impact incoming http has can also vary depending on what else is on the system your region(s) are shared with (which you can’t easily determine). We have had times when we have asked users to modify how they use http-in to prevent problems.

– Oz Linden

Key binding: there have often been requests for broader / more configurable options for key binding within the viewer / SL, a subject raised at the meeting, with Oz Linden again commenting:

I have a standing offer to accept a contribution that will provide a complete key binding editor for the viewer.

Scriptable UI: another long-standing request is for a more scriptable UI for SL.  This could help with a range of capabilities – such as the viewer taking over actions that are currently dependent on simulator intervention, which and slow things down. However, viewer-side scripting support brings within it a number of issues – such as the code being unprotected, for example. So, not something liable to happen in the foreseeable future.