only some copied instances are not following the correct orientation

[karen]

in attached hip, most copied instances follow the orientation correctly, while just a few seem to have their own opinion on where they should be facing. why, how to fix that?

some_copied_instances_do_not_follow_orientation.hiplc

[Jesper Rahlff]

its because you are calculating your normals on the primitives in the normal sop. If you change that to calculate on the points it works correctly

[karen]

On 4/4/2023 at 2:16 PM, Jesper Rahlff said:

its because you are calculating your normals on the primitives in the normal sop. If you change that to calculate on the points it works correctly

If I change to point normals, the orientation is wrong. Yes they are all pointing in the same direction but it's the wrong direction. Each should conform to the direction where the primitive is facing, just like most copies do in the image in the first post.

[Librarian]

@karen attribute promote- just change to First Match.

here its a file with many ex from Asia(regarding those issues)  ..you can find on qiita website many files and diff methods and tutorials and other links ..Have Fun
 

newnode.hiplc

Edited April 6, 2023 by Librarian

[Aizatulin]

You can also use the curve as additional input to set the up vector. The up vector shouldn't be a on same line as the normal.

some_copied_instances_do_not_follow_orientation_ctangent.hipnc