$HITID from POPs not available in CopySOP?

[Akabane]

Hi, i'm trying to use the vars $HITID and $PSTATE to drive a stamp variable on a copy SOP, but it states that it's an Undefined Variable.

But it's not!

I see those attributes in the spreadsheet of the pop entering the copy sop. Of course i set "use template point attributes" and "copy local variables" but no luck. Any other vars, like $ID or the 3 of $V work...any tips?

EDIT: Just saw the helpcard of Copy, it seems that hitid, pstate etc are not computed, but it's possible that i can only use the attrs stated in the help of the node?

Edited May 4, 2010 by Akabane

[graham]

The attributes stated in the help card are just ones that that current operator supports. Some operators don't support various variables. Also, getting actual variable references out of POPs can be hit or miss. You can use a point() expression to reference the attribute values from the template geometry instead of the variable. For example, point(opinputpath(".", 1), $PT, "pstate", 0) instead of $PSTATE.

[Akabane]

Thanks, it works flawlessly! A curiosity anyway, can i use this expression to create a new attribute called $PSTATE (for example) outside of the pops, overriding the original one, making it accessible outside? Thanks again, didn't know about point()

[anim]

you can

create Attribute Create SOP

Name: pstate

Variable: PSTATE

Class: Point

Type: Integer

Write Values: off

this will only update variable mappings since Write Values is off it will use values from POPs

[cabra]

you can

create Attribute Create SOP

Name: pstate

Variable: PSTATE

Class: Point

Type: Integer

Write Values: off

this will only update variable mappings since Write Values is off it will use values from POPs

Very usefull! thanks!

Edited May 17, 2010 by cabra