New to Blender


I made an object in blender-, tried "subdivide" to see what it'd look like smoother and now it's too big (I think), now it slows down my whole Macbook, which can usually run 3 Adobe products simultaneously without slowdown.


When I tired to un subdivide, I got a blocky mess, that's way less detailed than my original object.


How to unsubdivied to a lesser degree?

  • 2
    $\begingroup$ 1. Always save copies regularly! (Use Ctrl-Shift-S to Save as... and hit the '+' icon by the filename in the file selector to increase the filename before saving. In Blender 4+ you can use Ctrl-Alt-S - Save Incremental to do this automatically.) 2. Use a Subdiv Surface modifier rather than subdividing multiple times. Unsubdivide will not return your object to its original shape as you have found! $\endgroup$
    – John Eason
    Dec 20, 2023 at 22:37
  • $\begingroup$ Oh darn-- okay! Thank you, Jason!!! I'll stop trying the same thing over and over and hoping it works! $\endgroup$ Dec 20, 2023 at 22:49
  • $\begingroup$ Hi Sarah. Whenever asking, provide specific information(screenshots, Blender version, PC specs, type of object you subdivided), that might be useful to find a solution. This way you are more likely to find an answer suited for your purpose. $\endgroup$ Dec 22, 2023 at 6:24
  • $\begingroup$ Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. $\endgroup$
    – Community Bot
    Dec 22, 2023 at 6:24
  • $\begingroup$ This was my first post, thanks for letting me know, Edward :) $\endgroup$ Dec 22, 2023 at 19:15

1 Answer 1


Usually the modifier Decimate does a good job with Un-Subdivide when your high poly mesh has only quads.

  • $\begingroup$ Lukas--there's an actual "subdivide" option under decimate! Awesome! This is exactly what I needed--thank you! $\endgroup$ Dec 22, 2023 at 20:01
  • $\begingroup$ if this answers your question, feel free to accept the answer $\endgroup$ Dec 22, 2023 at 20:10

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