Gianluca Siciliano
Patoz
About Me
EXPERTISE
Technical Director
INDUSTRY
Film/TV
Connect
LOCATION
Canada
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Houdini Skills
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Not Specified
Recent Forum Posts
Highlight changes in a parm with a color? July 23, 2026, 4:49 p.m.
Hiya,
we do not have a way to change the parameter background in an HDA UI to visually show that is changed based on a rule right?
Let's say if default of an int parm is set to be 0 and if it changes it also change the parameter background to be let's say yellow?
Many thanks
we do not have a way to change the parameter background in an HDA UI to visually show that is changed based on a rule right?
Let's say if default of an int parm is set to be 0 and if it changes it also change the parameter background to be let's say yellow?
Many thanks
Python callback to run every time any HDA parameter change Feb. 19, 2026, 3:19 p.m.
OH yep this works pretty well for me
thanks a lot @tamte
thanks a lot @tamte Python callback to run every time any HDA parameter change Feb. 18, 2026, 9:22 p.m.
Hello,
I am trying to find the best way to hook up a python callback to write the data from my HDA menu into a json file (a dictionary that stores all the data)
At the moment I have added for each parameter the same python callback in the callback script section:
hou.phm().export_json(kwargs)
although I find this a little, well, brutal???
Would there be a better way to do this you reckon?
Any advice would be great
Many thanks
I am trying to find the best way to hook up a python callback to write the data from my HDA menu into a json file (a dictionary that stores all the data)
At the moment I have added for each parameter the same python callback in the callback script section:
hou.phm().export_json(kwargs)
although I find this a little, well, brutal???
Would there be a better way to do this you reckon?
Any advice would be great
Many thanks