This is to simplify the code (no tricky 'wasChild' signalling required)
and to reduce the risk of a thread clash between simulator-side attaching (necessary for v1 viewers)
and the viewer-side attaching the v3 viewers perform.
This looks like an off-by-one bug since the view distance was already only 256 on the west and south sides.
This reduces the number of child agents being logged into regions neighbouring a megaregion.
This was because the calculation as to whether a new agent was needed in the receiving region did not take megaregions into account,
unlike the original calculation when the user first teleported into the region.
This meant that on teleport, entity transfer would create a new CAP but this would be ignored by the viewer and receiving region, meaning that the EQ could no longer be used.
This would prevent subsequent teleport, amongst other things.
Currently, regions up to 512m from a megaregion are considered neighbours.
Check for the case where the fetched mesh asset fails meshing (degenerate
triangles or no physical mesh). In this case, the asset is marked 'failed'
and BulletSim doesn't keep trying to fetch over-and-over trying to get a
good asset.
This tells the viewer to enable the UI for export permissions.
WARNING: If your inventory store contains invalid flags data, this will result
in items becoming exportable! Don't turn this on in production until it's complete!
with our own and add export permissions as well as a new definition for "All" as meaning "all conventional permissions" rather than "all possible permissions"
This now does a check for border crossing (required to trigger the teleport) immediately in SP.MakeRootAgent().
If left any later, it looks like the physics scene changes the position and stops the cross happening.
If done any earlier, nothing happens because the cross-code currently requires a PhysicsActor to be in place, thuogh it's probably not necessary for this case.
This aims to reduce any side effects if the process tries to complete after the client has logged back in (e.g. it was delayed due to a slow destination region response).
This introduces a new Aborting entity transfer state which signals that the teleport should be stopped but no compensating actions performed.
If we do this after TeleportFinish, then it's possible for a neighbour destination to request the source to create a child agent whilst its still treated as root.
This closes the original presence which we don't really want to do.
This is probably okay (albeit with warnings on the console) but afaics there's no reason not to move the child agent signal.
Also adds regression test for the case where the viewer couldn't connect with the destination region.
Also refactoring of regression test support code associated with entity transfer in order to make this test possible and the code less obscure.
This resolves issues (at least in my tests with LL 3.3.4) where this can make attachments invisible until one zooms in on the avatar.
This doesn't affect version 1 viewers since this delay is shorter than the login delay.
This doesn't increase the login time since this part of the process was already being performed asynchronously.
This may be a temporary solution.
For some reason, sending updates before this will not have this effect.
This may be something related to some viewers (e.g. LL 3.3.4) or something OpenSimulator isn't getting quite right.
It looks like this was happening when AttachmentsModule.RezAttachments was doing a secondary set of each attachment to update with the asset ID (initially they only have the inventory ID).
However, with multi-attach this was appending a second copy of the same attachment rather than updating the data that was already there.
This commit requires both simulator and service to be updated.
Justin Clark-Casey (justincc)