[2025.32460] Field POP + Spec POP

Windows 11
TouchDesigner 2025.32460
Nvidia RTX A5000 - driver 595.97

Observed Issue

I love working with a Spec POP for fields, but the behavior of fields when rotated or scaled doesn’t match how other transform behaviors operate in TD unless a p attribute is explicitly added as an attribute to points being used to control parameters - this seems to ignore the default value provided on the Field POP.

Expected - Transform

When using a spec POP, the t attribute transforms a field as expected. Example file includes a simple network where green dots are inside a field, blue dots our outside. Another Box SOP is used to help visualize where the fields is located.

Unexpected - Scale

Scaling creates a mis-match between geometry and field. This seems to happen regardless of which component of scale is manipulated - here x is demonstrated, but y and z behave similarly.

Unexpected - Rotate

Similar to scaling - adding an attribute to rotate produces an result that’s similarly unexpected.

Resolvable with adding Pivot

Adding a p attribute for pivot seems to resolve this behavior - what feels inconsistent here is that the Field POP does not use the default Pivot attribute, it seems to require the explicit addition of of pin order to behave as expected.

Attached is a sample file for clarity

spec_pop_bug_report.toe (206.6 KB)

Hello @raganmd

Thanks for the detailed sample. We are having a look at the issue.

The problem will be fixed in the next build we release.

2 Likes

:fire:
Thank you - glad you all were able to reproduce.