Nima Ghorab

Hello guys.
I came across with a problem.
I have a Geometry Wrangle node in DOP and want to operate on just some specific rbd packed obejct nodes but not the all.
I used a switch node inside DOP it accepts local variables like $OBJID and I used this to control and run the Geometry Wrangle just on some specific objects in DOP but unfortunately it doesn't work!
I also use Enable Solver but it doesn't work as well.
Because both of them accept local variables I expected to behave differently on each object but seems they don't work in this manner!
Can anyone explain me what is happening?
HIP file attached.
Thanks for your helps.

I've fixed your file.
First of all you should use Dop Import Fields node to bring back your FLIP data in SOP.
Secondly you should connect the white whiter emitter to third input not the four.
Please take look at the HIP file.

Your welcome.
In chapter 4 of Shader Building in Houdini - Rohan Dalvi you can see how he creates ramp digital asset.