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jjakob posted a topic in ScriptingHey Guys, I'm trying to update attributes with a python sop and seeing downstream results live. I'm using the executeInMainThreadWithResult() function that comes with hdefereval.py and I am able to print the values live in the python shell / console while maintaining an interactive viewport during runtime, but the attributes don't update until the script finished. Im running this code (HIP is also attached): node = hou.pwd() geo = node.geometry() import hou import hdefereval import threading import time points = geo.points() def houdini_command(): for i,point in enumerate(points): point.setAttribValue("move", float(n)) print("running") def updateUI(): hou.ui.triggerUpdate() def worker(): global n n = 0 while n < 5: hdefereval.executeInMainThreadWithResult(houdini_command) hdefereval.executeInMainThreadWithResult(updateUI) time.sleep(.5) print(n) n += 1 thread = threading.Thread(target=worker) thread.daemon = True thread.start() Is there a way to hack this together to be able to view the changes of each loop live without having to wait until the full script is processed? I also tried writing the attributes to a different node & piece of geometry but that didn't work because python sop only gets read access to geometry owned by other respective node. Any pointers would be much appreciated! Thanks in advance Best, j execInMain.hiplc