According to tutorials with the uplisted settings I should have the opinion to see "caustics" checkboxes under object properties, but there are no caustic boxes. I use MacBook Air m1 chip with metal, latest blender version. Thanks you if you can help me.

  • $\begingroup$ I believe that it only works in CPU mode at this point. $\endgroup$
    – areee
    Mar 10 at 0:59

1 Answer 1


Caustics was in the 3.1 Alpha for Metal but did not make it into the final 3.1 release: https://developer.blender.org/D13533#381586

  • $\begingroup$ thank you Tobias, can I still download 3.1 alpha from blender.org? $\endgroup$
    – younever
    May 7, 2022 at 6:20
  • $\begingroup$ I was not able to find it, unfortunately. You might want to try the current 3.2 alpha instead. Though, I’m not sure if the caustics for metal is in there. $\endgroup$ May 7, 2022 at 6:28

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