Hi, I'm very new to Houdini, and I'm having issues with linking a parameter to a node inside of a nested foreach loop.

I'm trying to set a value in an Attribute Create node so that it offsets an amount (integer) that I set up in an HDA.
I've named this integer parameter test_int.
I thought this could work by referencing the iteration detail from the metadata node, and adding test_int to it.

The parameter expression goes something like this
ch("../test_int") + detail("../foreach_begin1_metadata1", "iteration" , 0)

The problem is, when I try this on a attribute create node that's inside a foreach loop that's also in another foreach loop, it seems to only return the iteration value.
I know that this seems to work with a regular, non-nested foreach loop, but in my case I require it to be inside of another foreach loop.

Does anyone know what I'm doing wrong?
I'm a complete noob, so sorry if I'm not giving enough information to work with, I'm more than happy to respond.

should work fine, do you have an example file of it not working?

Hi tamte,

Sorry for the late reply, I didn't notice that my first post was approved.

Anyways, I've been working on the HDA a little bit since my last post but there's been no progression, except that the integer parameter name is "offset_num" instead of "test_int".

Here's the HIP file and the HDA, hopefully it helps

I looked at your file and there is no offset_num parameter so it will always return 0

there is however offset_num# as a part of multiparm so offset_num0, offset_num1...
so your expression will most likely need to be:

Hi tamte,

Thank you for your advice, that works perfectly!