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  1. Hi its probably a long shot but I'll try anyway. I am trying to build ui using the old ui scripting with the help of huilib. This is not an argument thread about .ui vs PyQt vs PySide. I am trying to build a selection list in the UI like those you found in hou.ui.selectFromList Upon searching I came across the CHOOSER command with NO helpful hints or docs whatsoever. A lot of examples of how to build it but none to show how to populate it. Can anyone help if they know please? All the examples seems to point that the content was build dynamically. This is taken from one of the examples: undoChooser = CHOOSER 1 VALUE(undoChoices) STRETCH; But thas no pointer of how undoChoices was constructed. Thank you all!!
  2. Opscript+SOP solver

    While we are on this topic, I am wondering if SESI will upgrade opscript to support items as well as nodes? Thanks
  3. Flip with multiple layers of liquids

    I can create custom self collision using gas particle to sdf and gas calculate to collision field, but this setup stops the collision from static object to behave properly. Has anyone build a custom collision in dop before?
  4. Flip with multiple layers of liquids

    Yeah, Viscosity is the big bottle neck on what I try to achieve. It sticks no matter what. I thought some sort of layering would be helpful
  5. Hi Is there any way to have a flip solver that simulates multiple type of liquids together? Like layering system that has weight of interactions between different layers. I am thinking of having something like jelly, oil and blood mix in the same blood. They are all quite viscous but not meant to stick with each other. I want the jelly to slide (slip) off the oil and blood and vice versa. Is it possible? I am aware I cannot have 2 flip objects running and interact with each other. Or can they? I am thinking about building a custom dynamic collider that only affect certain particle group (layer). That quickly getting confusing as I am planning to have more than 2 type of layers. At the moment my viscosity always trying to pull the other layer with them no matter how I set @ballistic (activation), or @stopped (which cause particle to fall through), surface tension or slip field. I am running out of ideas now. Thank you all
  6. Houdini UI Python Library

    Thanks a lot, Alex
  7. Houdini UI Python Library

    Thanks for this wonderful tool. I got 2 questions: 1. How to implement a proper HIconButton with built in icon? 2. Is there any way to query an opened window and close it first before committing a new one? Thanks
  8. alembic export with path attribute

    you need a unique path attribute for every object otherwise houdini will pack the same transform into existing ones. packed_alembic_export2.hiplc
  9. alembic export with path attribute

    Sorry the tree gave me errors all the way to the top where the alembic file is missing. Path attribute need to be primitive attribute
  10. What about using normalize field when you use source fluid in dop and use the multiplier to determine max value? you can also inspect the min max field value on sop level in spreadsheet-intristic prims attribute or dcatter some points and do volume sample
  11. There is an env var that disable caching during simming/farming. You can put it in as a pre script render. Not sure if that help you.
  12. Mantra error loading Geo issue

    Thanks for the tip. I am dealing with one density volume. However i was testing with some bgeo.sc geometries, alembics and the test pig with the same random error. It seems to be upset when reading geometries from disk but then sometimes i got error just from a mountained box
  13. Mantra error loading Geo issue

    Can someone elaborate more about this please? I am having the same problem rendering on the farm with deadline 8. Very annoying because it only happen on certain frames on random slaves. The only clue from the log was cannot load object from stdin.
  14. VDB Analysis (Laplacian, Divergence)

    This is sooo aawesome thanks guys