kahuna031
It will use the original position. As you say it'parallelized so there can't be any feedback between points.
If you want to iterate in sequence you run a detail wrangler with a loop over the points.
Thank you kahuna031
So you say @P at the start of the calculation has been specified and will not change to the end of the process. and if we had something like:
@P += some vector based on @P
houdini always uses this determined original positions. This way there is a list of output points that wrangler fill it by iterating through original points and this list will return as new @P at last. Now this is clear.