I have been working on a scene in Blender 3.6 and it takes 1 min to render. When I open the same scene in Blender 4.0, it is long and estimate the render of the frame to 44 hours. I use Cycle. And I saw that the device : GPU Compute is greyed out.

Any help would be welcomed. Cheers Lucas :)

  • 1
    $\begingroup$ A greyed out GPU means you haven't selected a GPU in Blender's system preferences tab. $\endgroup$
    – L0Lock
    Nov 20 at 19:24
  • $\begingroup$ Selecting a GPU in preference tab made it work perfectly. Thank you so much for taking the time to answer my question! <3 $\endgroup$
    – LucasHug
    Nov 21 at 20:23


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