Files
DarkflameServer/tests/dGameTests
Aaron Kimbrell bd1d76193f fix(ugc): switch a client to a served mesh only once its own build is done
When a model finishes on the UGC server while players are on the property,
each client was sent the served NIF checksum, NotifyClientUGCModelReady and
the model constructed again at once. A client that was sent the model's
LXFML shortly before (the property load, a request for a model not made
yet, the owner's brick by brick save) is still building it then: the build
writes its own .nif over BrickModels/UserMade/<id>.nif and caches that
file's MD5 as the NIF's manifest info when it finishes (client 1.10.64:
LWOBBBInterface::GenerateModelFromLxfml 0x00b6c220, MainThread_Process-
ModelResponse 0x00b5a1e0), undoing the switch, so it kept its own build.
That is the usual case: another player's client asks for a model the owner
just placed, gets its LXFML, and that request makes the UGC server make the
model at once.

Now such a client is switched 30 seconds after the last LXFML sent to it
(UgcManifest::ServedMeshSwitches, BUILD_SETTLE); another LXFML sent
meanwhile starts the wait again. Other clients are switched at once, as
before. The served checksum is looked up when the switch happens. HKX
requests are still answered with the LXFML, so collision stays the
client's own.

Check in game (ugc_manifest=1, ugc_manifest_models=1, two accounts on one
property): the owner saves a new model; within about 30 s of the UGC
server making it, the other player's copy blinks out and back with the
served mesh (vertex AO, look of the dashboard's viewer), and still has
collision (walk into it). The owner's copy switches the same way. The
world log shows "Switching ... to the served mesh of model ...".

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-29 00:05:42 -05:00
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