Has anyone else had issues with instanced objects acquiring the wrong rotation when instanced from faces derived from a mirror modifier. I’ve ran several tests and get the same result every time. dont want to report it till someone confirms it.
Do you mean the error appears after you add a mirror modifier to an object, then Alt-D that object?
It’ll help if you give a more detailed steps to replicate the error.
I added a mirror modifier to the plane and parented the triangle to the plane and set instancing on the plane to faces. I dont understand why the triangles being instanced from the planes mirror have been rotated 90 degrees around the z axis instead of being mirrored.
Bringing this one up again, because I encaountered the exact same issue in Version 5.0.1. - the mirror modifier rotates collections instances by 90°.
Has anyone a solution to this? Or is it simply not possible to mirror hierarchies?
Using a vert as “instancer” cripples the mirror modifier to an array anyway, there is no mirroring of the mesh, just the position.
I don’t know how I made that scene, but I come out differently. (blender 4.5)
And this changes direction depending on the Face Normal direction.
I don’t know if this is the wrong result because I don’t know what it’s sorted based on.
Even if this is a bug, blender 2.8 won’t improve.
This is a version that has already been terminated.
Add…
The mirror modifier sometimes turns the face of the opposite object upside down.
The right part of the attached image is the result that matches the flipped Face.
That combination of Collection Instance and mirror modifier seems completely broken. mirorring along X rotates the “mirrored” object 90° in Z axis. (right one is original, left one “mirrored”)
It get’s even weirder if you activate “bisect”…
I just filed a bug report. Hopefully this get’s fixed soon.
edit: they confirmed the bug