Jump to content

selecting inside/outside primitives


Recommended Posts

The group SOP does have an option to group primitives by normal relative to another object (or the object itself). Just drop down a group SOP and then go to the normal tab, click enable and in the 'backface from' field select the reference object (in the case of the glass, if the geometry is centered, you can select the object itself)... I hope that makes some kind of sense

EDIT: Of course, if you can, it might make more sense to create the geometry in a procedural way and then you can generate your groups as you go, for example if the glass was created from an extruded tube, the PolyExtrude SOP allows you the group the extruded faces... This of course doesn't cover the event when you've been given a finished geo by some other bod that you've got the wrap your head around :o)

Edited by friedasparagus
Link to comment
Share on other sites

34 minutes ago, friedasparagus said:

The group SOP does have an option to group primitives by normal relative to another object (or the object itself). Just drop down a group SOP and then go to the normal tab, click enable and in the 'backface from' field select the reference object (in the case of the glass, if the geometry is centered, you can select the object itself)... I hope that makes some kind of sense

EDIT: Of course, if you can, it might make more sense to create the geometry in a procedural way and then you can generate your groups as you go, for example if the glass was created from an extruded tube, the PolyExtrude SOP allows you the group the extruded faces... This of course doesn't cover the event when you've been given a finished geo by some other bod that you've got the wrap your head around :o)

thanks Henry, "backface from" option is what i was looking for :)

Link to comment
Share on other sites

51 minutes ago, friedasparagus said:

The group SOP does have an option to group primitives by normal relative to another object (or the object itself). Just drop down a group SOP and then go to the normal tab, click enable and in the 'backface from' field select the reference object (in the case of the glass, if the geometry is centered, you can select the object itself)... I hope that makes some kind of sense

EDIT: Of course, if you can, it might make more sense to create the geometry in a procedural way and then you can generate your groups as you go, for example if the glass was created from an extruded tube, the PolyExtrude SOP allows you the group the extruded faces... This of course doesn't cover the event when you've been given a finished geo by some other bod that you've got the wrap your head around :o)

 

1 hour ago, f1480187 said:

No general way. Try select points by bounding object created with Shrinkwrap SOP. Then convert point group to primitives.

select_inside.png

select_inside.hipnc

thanks F1 for the hip file....  select by bound option also worked :)

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...