Justincc's OpenSimulator blog

This week in OpenSim Dev – week ending 15th June 2013

justincc — Thu, 20 Jun 2013 00:33:55 +0000

Hello everybody. This is a summary of this week’s development changes in OpenSimulator. Except where otherwise specified, the changes described here appear only in OpenSimulator’s cutting edge ‘master’ branch in OpenSimulator’s Git source control system. Only changes that I think will be interesting to end users are listed. Please do not attempt to use code taken directly from ‘master’ in any production environment. Sometimes this in-development code may not work or may even cause data corruption. If you are not a developer or tester, please treat this summary instead as a preview of what will be coming up in the next release. The latest official release is OpenSimulator 0.7.5 (released on February 9, 2013).

The letters and numbers in brackets after some entries tell you the latest git commit to which they apply.

This week in OpenSimulator ( d00770d – 694c4bc ).

General news

The first OpenSimulator Community Conference (OSCC13) was announced! This will take place on the weekend of September 7th to 8th. Please see the link for further details.

Features & bug fixes

Diva fixed an issue with the new built-in groups where one couldn’t switch the active group back to none after selecting a group (e741e5e).
Talun and Dahlia made changes to make OpenSimulator’s LSL llAxisAngle2Rot() function better match the Linden Lab implementation (ed950e6c).
Teravus and Dahlia fixed issues where llRot2Axis() and llRot2Angle() would wrongly return NaN (not a number) for very small rotations. The OpenSimulator behaviour should now match the behaviour of these functions on the Linden Lab grid (ba84074).
Teravus added support for keyframe motion setting storage to OpenSimulator’s SQLite database plugin. He also fixed a possible exception on simulator shutdown connected with the new keyframe code (d47a18f).
I improved network debug logging so that the first 80 characters of the body of an outgoing HTTP request (debug level 5) or the full message body (debug level 6) can be logged. This is done via the “debug http out ” command. These debug settings can be very useful for diagnosing issues, though currently they are very verbose. This matches existing logging levels for incoming HTTP data (47b6e78).
Talun contributed a patch to fix a bug where using PRIM_TEMP_ON_REZ or PRIM_PHANTOM with osSetPrimitiveParams() would always set these on the prim containing the script rather than the target prim (fc89bde).
Talun contributed an implementation of the LSL llSetContentType() function (f074739).

Infrastructure

Mic Bowman of Intel fixed internal code so that the Local property for an asset now properly indicates whether it should be stored locally only or globally (i.e. uploaded to the grid’s asset service). The Temporary property now only indicates that an asset can be safely removed in the future (82e3b9a).

This week in OpenSim Dev – week ending 8th June 2013

justincc — Thu, 13 Jun 2013 22:03:36 +0000

The letters and numbers in brackets after some entries tell you the latest git commit to which they apply.

This week in OpenSimulator ( 43d804b – 75e4af9 ).

General news

The first OpenSimulator Community Conference (OSCC13) was announced! This will take place on the weekend of September 7th to 8th. Please see the link for further details.

Features & bug fixes

Work on BulletSim continued, with Robert Adams of Intel working on linksets, physics heartbeat, vehicles (b5d0ac4).
I fixed an issue where a code deadlock for a user could occasionally occur when they connected to a simulator and a script simultaneously performed an operation which required information on any attachments they had (even where the number of attachements was zero). This might fix the issue where avatars disconnected from any viewer are left orphaned on the simulator and prevent any further connection from that user until the simulator is rebooted. In this situation, the “show connections” command would also show their connection as active = false (f41fc4e).
Melanie of Avination added server-side throttling of viewer HTTP inventory requests. This reduces the load on a simulator generated by multiple inventory requests by the viewer, particularly on first login (a7dbaf).
Melanie added a keyframe implementation. This implements the LSL llSetKeyframedMotion() function (06012f8).
Donnie Roberts contributed a patch that fixes friendship termination where the terminatee is in the same simulator (045c26f).
BlueWall added support for the SQLite database in the now bundled user profiles module (75e4af9).
Diva fixed an issue where the built-in groups ROBUST service was not allowing a user’s active group to be changed back to “None” after a group had been selected. See Mantis 6666 for more details (e741e5e).

Infrastructure

Diva made a change to vastly increase the number of simultaneous HTTP requests that simulator and Robust servers can open with other servers. This may have an impact on simulator behaviour in high traffic situations (chiefly where there are a large number of avatars logged into the simulator or on neighbouring simulators).
Melanie updated the HTTP polling implementation in OpenSimulator, where is used by the viewer EventQueue capability and LSL HTTP server commands.

This week in OpenSim Dev – week ending 1st June 2013

justincc — Wed, 05 Jun 2013 21:30:12 +0000

The letters and numbers in brackets after some entries tell you the latest git commit to which they apply.

This week in OpenSimulator ( 0c35d28 – 07058b0 ).

General news

The first OpenSimulator Community Conference (OSCC13) was announced! This will take place on the weekend of September 7th to 8th. Please see the link for further details.

Features & bug fixes

Work on BulletSim continued, with Robert Adams of Intel working on collisions, vehicles (5d25bb3).
Diva made a change so that the initial requests from the simulator to the Vivox voice server when an avatar logs in are done serially rather than concurrently. This might improve the login experience when using Vivox voice (7e1c7f45).
Vegaslon contributed a patch to fix an issue where a viewer would receive the wrong prim information if the user sitting on a linkset is actually sat on a different prim from the one they have chosen. This happens if, for instance, there is a sit target set on one of the other prims. This may help with some camera issues when sitting though there are definitely other bugs in this area. I slightly modified the original patch (8f9a726).
BlueWall added the previously external osprofile module as an optional module in the OpenSimulator distribution. This provides viewer 1-like user profile support and also adds some further changes to make it more Hypergrid friendly. Currently, this is configured by setting a ProfileServiceURL in the [UserProfiles] section of OpenSim.ini which points to either the standalone server or to a robust grid service. See OpenSim.ini.example for more information (d7fa9f6).
I fixed passing of voice distance attenuation information to the Vivox voice server. The vivox_channel_clamping_distance setting in the OpenSimulator configuration files or the default of 100 metres will now be correctly passed on (12a3b85).
I fixed an issue where on some regions of a multi-region simulators, scripts would occasionally not run on simulator startup (921ad87).

Infrastructure

No news this week.

This week in OpenSim Dev – week ending 25th May 2013

justincc — Tue, 28 May 2013 20:36:22 +0000

The letters and numbers in brackets after some entries tell you the latest git commit to which they apply.

This week in OpenSimulator ( 6ae426c – 533bbf0 ).

General news

The first OpenSimulator Community Conference (OSCC13) was announced! This will take place on the weekend of September 7th to 8th. Please see the link for further details.

Features & bug fixes

I implemented the LSL sound command llSetSoundQueueing() (7d38f49).
Work on BulletSim continued, with Robert Adams of Intel working on collisions, meshing and vehicles (5d25bb3).
I fixed a bug where a cloned object (i.e. by copying it using shift and drag in a viewer) would make it report a wrong number for llGetNumberOfPrims() for certain sitting avatars until the simulator was restarted.
I fixed a bug where llSetPayPrice() on a cloned object would change the prices on both the clone and the original until the simulator was restarted (02fe05f).
Mic Bowman of Intel added support for properly using cached baked textures uploaded from viewers for their avatars. Up till now OpenSimulator did not effectively do this since the code was buggy. This is not the same thing as server-side appearance baking (a087dbe).

Infrastructure

No news this week.

This week in OpenSim Dev – week ending 18th May 2013

justincc — Thu, 23 May 2013 20:54:41 +0000

The letters and numbers in brackets after some entries tell you the latest git commit to which they apply.

This week in OpenSimulator ( 25fea82 – e65d1e4 ).

General news

The first OpenSimulator Community Conference (OSCC13) was announced! This will take place on the weekend of September 7th to 8th. Please see the link for further details.

Features & bug fixes

Diva fixed an issue with the new built in groups code where a user could create a group with the same name as an existing group. See Mantis 6636 for more details (a443138).
Work on BulletSim continued, with Robert Adams of Intel working on avatars (5d25bb3).
Diva fixed an issue where on teleport or region crossing, mesh download requests would go to the source simulator for a while. For teleporting within a grid this wouldn’t matter since all mesh requests could be serviced by any simulator. However, on Hypergrid this meant that a viewer might not see some of the meshes on a foreign destination region (91091c3).
I fixed an issue where osMakeNotecard() would fail if given an LSL list containing vectors or quaternions (177a53f).
I made a change so that on logout, requests to close child agents on neighbouring simulators are sent asynchronously rather than within the logout thread. This is to that regions which are present but unresponsive do not delay the logout process (and hence stop the user logging back into that region). The symptom of this is that some connections in the “show connections” command show as Active? = false and take a long time to clear (d214e2d).

Infrastructure

No news this week.

Announcing the first online OpenSimulator Community Conference

justincc — Mon, 20 May 2013 19:30:53 +0000

Hi folks. Today we’re announcing the first OpenSimulator Community Conference (2013). This will be held purely online within an OpenSimulator installation. The detail is still evolving with various things still to be announced (e.g. keynote speakers, etc.) but the basic details are in place. It’s going to be both scary but also exciting as this is a very interesting place to take the platform and deal with capacity issues and other bugs firsthand (and one reason for the recent load tests). More details will be announced on the website and via the Twitter handle (@opensimcc) as things progress. In the mean time, some of the calls for presentations are open and the others soon will be, so if you’re interested in presenting please feel free to submit a proposal. Thanks!

This week in OpenSim Dev – week ending 11th May 2013

justincc — Tue, 14 May 2013 20:26:01 +0000

The letters and numbers in brackets after some entries tell you the latest git commit to which they apply.

This week in OpenSimulator ( ad00466 – a443138 ).

General news

None this week.

Features & bug fixes

Work on BulletSim continued, with Robert Adams of Intel working on vehicles (5d25bb3).
Melanie of Avination added the ability for estate settings and operations (e.g. teleport all users home) to work across all regions in an estate, rather than only those which were hosted on the same simulator (81d8deb).
Mic Bowman of Intel added handling of the CachedTexture UDP message in the Second Life protocol. This allows baked avatar textures still known to the grid’s asset service to be reused. This is currently disabled by default and can be activated by setting ReuseTextures = true in the [Appearance] section of OpenSim.ini (33aaa40).
BlueWall added the ability to send version 3 viewer destination guide and avatar picker URLs to the viewer on login. Full V3-like avatar picker implementation is a work in progress. This is set in the [LoginService] section of bin/Robust.ini or bin/config-include/StandaloneCommon.ini (182ea00).
I fixed an issue where objects removed using the llDie() LSL script command would not disappear for users looking in from neighbouring simulators (2cb2f1d).

Infrastructure

Diva added an HTTP capability for handing avatar picker search through HTTP rather than UDP.

This week in OpenSim Dev – week ending 4th May 2013

justincc — Wed, 08 May 2013 20:16:21 +0000

The letters and numbers in brackets after some entries tell you the latest git commit to which they apply.

This week in OpenSimulator ( a517e59 – 5d25bb3 ).

General news

None this week.

Features & bug fixes

Work on BulletSim continued, with Robert Adams of Intel working on avatar capsules, linkset physics shapes, collisions and vehicles (5d25bb3).
I fixed a bug where an agent that declined an inventory offer and subsequently emptied their trash would cause the givers original item or folder to become invalid (12054aa).
Melanie of Avination fixed an issue with capabilities where unrequested feature information was still being sent to the viewer. This should mean that in more viewers, turning off HTTP inventory should allow them to correctly fall back to UDP transmitted inventory information (ac135c6).
I updated the SmartThreadPool implementation that OpenSimulator uses up to 2.2.3, with some OpenSimulator specific changes. The reason for this update is to see if it alleviates problems such as Mantis 6557 and Mantis 6586 where high load can cause CPU usage to permanently jump to very high levels and where threads can sometimes be removed without releasing their locks (206fb30).
Melanie fixed an issue where new items would sometimes be placed in the lost + found inventory folder when a copy was taken from the scene.
BlueWall fixed an issue where objects rezzed from the trash or lost + found inventory folders would be wrongly placed back there if the object or a copy was then retaken (e3d9d55).
I fixed an issue where on a heavily loaded simulator, an exception could be triggered by a scene trying to inform neighbour scenes of their status before those neighbours had properly started up (5d93c99).

Infrastructure

No news this week.

This week in OpenSim Dev – week ending 27th April 2013

justincc — Wed, 01 May 2013 20:52:33 +0000

The letters and numbers in brackets after some entries tell you the latest git commit to which they apply.

This week in OpenSimulator ( 46e4eca – a49c529 ).

General news

None this week.

Features & bug fixes

Work on BulletSim continued, with Robert Adams of Intel working on volume detect enabled objects, avatar stair walking, mesh (68c8633).
Diva fixed an issue where Hypergrid visitors were not being found by the viewer’s avatar picker window (70081a4).
Melanie of Avination contributed improved avatar ejection and freezing of avatars for parcel owners. Parcel owners can now eject avatars from their parcels no matter whether that avatar has a valid home set or not (6f3c905).
Melanie contributed code so that administrators/gods can now kick a user from their grid via the viewer (5cd77a4).
Melanie added a module so that a grid can tell a compatible viewer about extra menu options for that grid. A viewer requests these by asking for the “menus” feature via the OpenSimulator -specific SimulatorFeature capability. As far as I know this is undocumented at the moment (ec4f981).

Infrastructure

No news this week.

These two weeks in OpenSim Dev – weeks ending 20th April 2013

justincc — Tue, 23 Apr 2013 19:58:08 +0000

Hello everybody. This is a summary of the last two weeks of development changes in OpenSimulator. Except where otherwise specified, the changes described here appear only in OpenSimulator’s cutting edge ‘master’ branch in OpenSimulator’s Git source control system. Only changes that I think will be interesting to end users are listed. Please do not attempt to use code taken directly from ‘master’ in any production environment. Sometimes this in-development code may not work or may even cause data corruption. If you are not a developer or tester, please treat this summary instead as a preview of what will be coming up in the next release. The latest official release is OpenSimulator 0.7.5 (released on February 9, 2013).

The letters and numbers in brackets after some entries tell you the latest git commit to which they apply.

This week in OpenSimulator ( c7cd077 - 69f07fd ).

General news

None this week.

Features & bug fixes

Work on BulletSim continued, with Robert Adams of Intel working on objects, megaregions and llMoveTarget() (5fdcbfc).
Jon Cundill helped figure out how to get BulletSim working for Mac OSX in OpenSimulator (4d2203f).
Vegaslon contributed code to improve angular vertical attractions calculations for OpenSimulator’s BulletSim module (9cc41d5).
Dahlia added initial experimental support for materials capable viewers. This is at a very early stage, is disabled by default and should only be used for testing by developers (69f07fd).

Infrastructure

No news this week.