Hi everyone, I got 2 questions about grouppaint sop bugging me here, hopefully can get some help…

1 in spreadsheet or details view, there is the point attribute “__inside_group_***” (***is the group name of the groupaint sop) with its value 1 or 0. so I tried to use it and transfer to other attribute like color.

but the wired thing is, if the grouppaint node is not currently selected, the attribute is not going to be found. is this a kind of special temparary attribute? How to use it?

2 when doing grouppainting, the RMB pop up menu has the select option and I tried to do a mouse rectangle picking. But after “Enter” to accept, the points in the “group” channel are not exactly the same from these I picked by mouse. is there any I missed to mask the painting?


attached is the screen shots and the example file.
thanks

ok, I figured it out myself… just in case any other beginner like me runs into a same situation:
the grouppaint SOP actually take primitive group as its “Group” input.
so when doing the RMB pop menu selection, just switch into primitive mode and it would work nicely.

for the “__inside_group_***” attribute, since it's funky, I just used a simple VOPSOP to do a “point in group” condition and problem solved.