UEPY_THREADING Change causing Unreal 4.1.2 to close before the editor launches.

[20tab]

UEPY_THREADING Change causing Unreal 4.1.2 to close before the editor launches.

[rdeioris]

Hi, i have just added the create_and_dispatch_when_ready() method:

import unreal_engine as ue

def deferred_hello():
    ue.log_warning('I AM DEFERRED')

ue.create_and_dispatch_when_ready(deferred_hello)

currently it is pretty minimal, in the future we could extend it to support scoped events and other patterns

[crispy4004]

Thinking about this more, it would probably require something like Houdini's executeInMainThreadWithResult() or Maya's evalDeffered(). Basically a way of deferring a function to run in the main thread when idle.

CreateAndDispatchWhenReady looks like the Unreal equivalent.

[crispy4004]

It may also be possible to do it through PyQt's event handler like so. Have it working in a very limited test case. I'll know more tomorrow if it does what I need it to.

All that said, an engine level solution would still be ideal.

[Amorano]

I have done this cheating by simply launching a window (hidden) in the background during the ue_site.py intialization. You can then bury a any kind of messagebus/queue/etc... inside said window's loop to poll for events.

[crispy4004]

Just a quick update, I haven't been able to use "create_and_dispatch_when_ready" due to the initial issue I posted in this thread that prevents the editor from launching, however the Qt workaround is working as intended. Successfully running remote calls on the main thread with the UnrealPythonEngine plug-in that is a few revisions behind.

[crispy4004]

Just pulled the latest, the plug-in is loading successfully now in 4.12.