something simple but can't figure it out.

i have a setup with attribute vop, controlling opacity by distance.(attached pic)

i used bind export with attribute name “Alpha.” btw, is this the right way to set up opacity?
it seems working until i use copy node(i checked ‘use template point attributes). in geometry sheet, all alpha value turns into ’0'. and when i render i rather see every cube as if alpha is ‘1’. what did i miss?

how do i sucessfully render alpha?

thank you for your help in advance,

hb

You have this in Set:
*,^v,^Alpha , which means : All ( * ), except v ( ^v ), except Alpha ( ^Alpha )
Alpha is in Multiply, so it gets multiplied with the same attribute on your box, but your box has no Alpha attribute, so Alpha * 0 = 0.

2 solutions:
Change Set to “Alpha” or whatever attributes you want to take over,
or give the box am Alpha attribute with a value of 1.0.

thank you blackpixel,

i never understood what *, ^ meant and now i do.

much appreciate it,

hb