Blender 3.1 - Bug With GPU Subdivisions

Hi All,

   I use Kubuntu and run Blender as a Snap.  Blender just updated to 3.1 and my latest project is freaking out with very simple materials:

aterialsFreakOut.jpg


PuffZilla looks fine in object mode.

It gets freaked out like this both on my laptop and on my desktop.


If I remove the materials from the creature, it looks fine.  If I remove the broken material and try re-adding new ones, this happens again.

Sometimes the geometry freaks out too.  The vertexes are all in the right place but I get jagged triangles.


Wondering if anybody else is encountering this.


To be fair, this was initially created in 3.0 and now is being edited in 3.1.


I have a much more complex scene that doesn't seem to suffer from the same issues.

  • wardred replied

    Got examples of the "Geometry Streaking".


    Tried to add it to my question, but it kept dumping me back to the dashboard.


    ialsFreakOut2jpg.jpg


    terialsFreakOut1.jpg


    Edit: It's possible my connection was flaking out.  I'm at my "favorite spot" coffee shop now.

  • wardred replied
    Solution

    Looks like somebody already reported the issue:

    https://developer.blender.org/T96356


    Turning off preferences->vieport->subdivision->gpu subdivision fixed the issue.

    1 love