Hi,

I've got a piece of geometry that I've blasted from a model. I need to send it to the origin and zero out its rotations. I can send it to the origin, no problem. But, I can't seem to get the darn rotations to zero out. By "zero out" I mean the object is not rotated at the origin.
FYI: The object comes in pre-rotated...so I don't have a frame of reference (like a rest position) to work with.

Any ideas on how to achieve this?

Thanks

It's a generally difficult problem if you need to do it procedurally. A good start is to use Bound SOP with oriented bounding box enabled then Match Axis.

if it comes from alembic that was exported as a rotated object chances are it will contain transform as intrinsic

if the transform is already baked into geo for example from scan then you need to build reference frame yourself apart from Bounds sop you can build it from 3 points for example, origin, z and y

I posted a few methods here:
https://www.sidefx.com/forum/topic/84345/ [www.sidefx.com]

All these methods are guesses based on the shape. if you need the true original orientation, you're SOL

jsmack
All these methods are guesses based on the shape. if you need the true original orientation, you're SOL

haha, nah...just need it at origin with 0 rotations so I can animated it easier.
I'll try the above methods from everyone.

TheDude123

jsmack
All these methods are guesses based on the shape. if you need the true original orientation, you're SOL

haha, nah...just need it at origin with 0 rotations so I can animated it easier.
I'll try the above methods from everyone.

Unless it's an fbx or alembic with a rotation on the object, it already has 0 rotations.

For what you need... have a little play with the Labs straighten SOP.

jsmack

TheDude123

jsmack
All these methods are guesses based on the shape. if you need the true original orientation, you're SOL

haha, nah...just need it at origin with 0 rotations so I can animated it easier.
I'll try the above methods from everyone.

Unless it's an fbx or alembic with a rotation on the object, it already has 0 rotations.

Here is an example file...I can't seem to get it to work with the other methods...

Mike_A
For what you need... have a little play with the Labs straighten SOP.

Thanks, I'll take a look.