CHOP export in OTL problem!

[frading]

Hi,

I am trying to make a simple equivalent to the maya "point constraint" as a simple OTL. it just contains two nulls, one being a the world origin, and one to be contrained to the object path provided in a parameter. The translation parameters of the second will be overriden by an object CHOP computing the position between the world origin null and the object whose path is provided.

When I am creating it, it works fine, but the problem is that when I call a new one, it doesn't work apparently because the CHOP doesn't export anymore, even if the export flag is on. it seems that I need to "allow editing of contents", and toggle twice the export flag of my chop...is this step really necessary, or I am making somthing wrong? As it is not the first time this is happening to me, I may have not understood something...

the solution I found is to have a callback script ( called when a parameter of the OTL changes ) like this:

otunsync `oppwf()`; #allow editing of contents

opset -o 0 `oppwf()`/chop/export; #turn off the exportflag

opset -o 1 `oppwf()`/chop/export; #turn on the exportflag

otsync `oppwf()`; #does not allow editing of contents

I do not really like that, so I guess there may be a better way to go...

And here is a file containing my "point contraint" operator type.

http://perso.chello.fr/users/f/frading/poi...contraint.hipnc

there is just also a few bones, only here to have objects to test my operator onto.

and please...I really need help about this loosing so much time with these kind of details is really painful!

[Mcronin]

EDIT: Looks like I spoke too fast. I though the version you posted wasn't using the callback.

[Mcronin]

NM

[old school]

I responded to this one in the houdini technical forum. It is most likely a bug in either the Object CHOP or CHOPs in general and not with OTLs or custom objects.