Rotate About Axis node causes mesh faces to disapear in game

Summary

Using the rotate about axis node causes meshes that use a material with it to have artifacts based on camera angle.

Please select what you are reporting on:

Creative

What Type of Bug are you experiencing?

Assets

Steps to Reproduce

  1. Make a fresh mesh in uefn modeling tools (preferably a torus)
  2. Make a material that uses the Rotate About Axis Node
  3. Apply it to the mesh
  4. Jump in game and look around the mesh

Expected Result

The mesh is to rotate without any visual problems (Besides the Normals)

Observed Result

The mesh faces randomly disappear based on view angle

Platform(s)

PC

Island Code

No Code Sadly

Upload an image



Video

https://youtu.be/yEhMIkv2StI (In game)

https://youtu.be/iTuD1A_UEjY (In Editor)

Additional Notes

From what I can tell, its Fortnite culling the faces on the mesh that it thinks are offscreen when in reality they are not due to the rotation. The editor does no appear the cull the faces when using default preview mode.

I would appreciate some help with this since I plan to use this heavily in a project soon. I’ve been unable to find a solution myself so far.

Can an Epic employee or someone skilled in ue5/uefn Please help me.

so i just found the fix my complete accident

2025-03-26 18_33_58-Clipboard

I don’t need help anymore

1 Like

The culling off screen i have had before currently i havnt found a work around :frowning: the material is so strong at rotating things just a few little issues

Good job on a find :slight_smile:

1 Like

Closing this one so a ticket doesn’t get created :slight_smile:

Glad you got it sorted!