Python unreal.

Posted on | In
Unreal class

https://api.unrealengine.com/INT/PythonAPI/#modules

https://docs.unrealengine.com/5.0/en-US/PythonAPI/

in sequener: https://forums.unrealengine.com/t/ue4-sequencer-python-cookbook/265097

Usage

In Console

import unreal

def log_hello():
    '''
    print to unreal log
    '''
    unreal.log("Foo")

files.py in folders

content folder which have Python folder will be at python paths Print path to script folders:

for path in sys.path
    print path

for file unreal_python_test.py:

import unreal_python_test
reload(unreal_test)
import unreal_python_test
unreal_python_test.log_foo()

Caviots

Get/Set

There are two methods (fn vs attribute property method) to set parameter attributes that differ in visibility and settings behavior’s:

  1. get/set functions (as method) (or by BP) fn will:
    • envoke post notification for editor
  2. traditional set by atribute (property method)
prop = chair_asset.get_editor_property("load_for_occluder_mesh")
prop = chair_asset.set_editor_property("load_for_occluder_mesh", 1)

===

console python

  1. instal plugin python
  2. change cmd to python > can execute python files
  3. new file: python.py 
    import unreal
unreal.log("foooo")
unreal.log_warning("foooo")
  4. copy path and past into console : C:/..../ python.py S

console REPL

  • interactive codinb
  • it will show resoult without printing
  • eplore python api in unrela

### widget > editor utility