Attribute value of the current prim in a for loop

[AntoineSfx]

What is the syntax to read an attribute on the current prim from inside a for-each-primitive loop ? I'm not sure what the foor loop context allows me to do in terms of closure and stuffs..

Just to be clear, I'm talking about this kind of loop: http://www.sidefx.com/docs/houdini16.5/model/looping.html

Block begin / Block end

Edited June 28, 2018 by AntoineSfx

[iFight4theUser]

If you are iterating per primitive, then a simple
 

prim(0,"[your attribute]",@primnum)

or

prim(0,"[your attribute]",0)

should work.

The @primnum doesn't need to be specified since there should only be 1 inside the for each loop anyway. 

Does this answer your question?

Edited June 28, 2018 by iFight4theUser

[AntoineSfx]

7 minutes ago, iFight4theUser said:

If you are iterating per primitive, then a simple
 

prim(0,"[your attribute]",@primnum)

or

prim(0,"[your attribute]",0)

should work.

The @primnum doesn't need to be specified since there should only be 1 inside the for each loop anyway. 

Does this answer your question?

No it does not. The context is a Block Begin / Block End loop, the one in Utility / For-Each primitive

[iFight4theUser]

I've tried a test. Let me know if I still do not understand the context.

Both trees yield the same result. Just depends on if the wrangle is set to primitives or points.

Edited June 28, 2018 by iFight4theUser

[AntoineSfx]

5 minutes ago, iFight4theUser said:

I've tried a test. Let me know if I still do not understand the context.

Both trees yield the same result. Just depends on if the wrangle is set to primitives or points.

I'm trying to get the attribute value in the float field of an operator (say, transform).

[iFight4theUser]

Maybe the problem is that you need to grab the opinput()? It will trigger an infinite recursion otherwise. Although, it does that outside of a for each loop as well. 

[PixelNinja]

Since it's a foreach primitive there should only be one prim, so I would just use:

prim(0, "attribute", 0)