Kacper Zulinski

Kacper87

About Me

専門知識
Generalist
INDUSTRY
Film/TV

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LOCATION
Poland
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Houdini Skills

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Not Specified

Recent Forum Posts

Houdini/Maya Transform Nodes Visibility 2024年4月11日11:47

Hi,

Is it possible to export alembic (via rop_alembic node) with visibility attribute in transform nodes?

I know that there is an attribute for pirm/shape:

i@group__3d_hidden_primitive = 0;


But I cannot find any method to export transform node visibility.

I would like to recreate hierarchy visibility from an attached picture.

Deadlinescheduler- Job Distribution, group task to one node? 2024年3月14日15:18

Hi,
I'm looking for settings that allow me to 'group' tasks.

Case in attached picture:
I have 2 alembic files to preview.
For each alembic, there are 4 frames tasked with assignments:
- fetch point data and export it to JSON dict.
- render (viewport - openGl).
Frames are not arranged in a sequential order; instead, they are selected according to a specific pattern: (start_f, 0.33, 0.66, end_f).

Is there are simple solution to force Deadlinescheduler to render that job on 1 node per alembic file instead of 4?
I assume group by 1 node will prevent the loading of the same alembic file multiple times, only loading it once.

Houdini nondestructive Import/Export Alembic 2023年6月15日5:20

Hi,

(1) I created a hierarchy in Maya and then exported it to '.abc' format. The file cache contains empty groups/transform nodes with channel animation, as well as hidden transform nodes with animated child nodes.
(2) In Houdini, using Sop nodes, my goal is to import the alembic file, apply deformations to the geometry, and then export the results without making any changes to the asset model hierarchy. After trying out various methods and running multiple tests, I have only found one method to transfer visibility, which involves adding the "i@group__3d_hidden_primitives" parameter to all prims. However, this parameter only works on Shape nodes, and all transform/xform nodes change their visibility value to 'on/True' after export using ROP Alembic Output.
(3) I found out that when using the Alembic Archive node, I can achieve a similar result, but it adds some extra parent nodes to the hierarchy.
(4) I'm unsure how to export the cache with the correct hierarchy through the "File -> Export -> Alembic" menu. Is it possible to use a Python script to automate this export method?

Any suggestions regarding my approach?