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So I have a terrain with sections of water in it. I just placed a whole bunch of trees in the scene with mass place. However, it spawned trees in the water which I obviously want to remove. But when I remove the trees, there a delay of a couple of seconds before it actually deletes them. This is so incredibly frustrating because my map is 8km x 8km so for me to have to go around every area of water and cliff and click, wait a few seconds and move on is going to take all day. Why can't I just click and drag without lag?

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    \$\begingroup\$ This might be a good case to bring to the Unity Bug Report or Feature Feedback systems. It might or might not have a user-side fix, depending on what the root cause is. \$\endgroup\$ – DMGregory Feb 2 '17 at 23:29
  • \$\begingroup\$ How much RAM do you have? I use to have a similar issue working with large terrain on a 4GB system \$\endgroup\$ – Gnemlock Feb 3 '17 at 0:00
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    \$\begingroup\$ @Gnemlock I have 16gb of RAM, i7 4770k, gtx 1080 super clocked, it's pretty safe to say that it's not my system \$\endgroup\$ – mr-matt Feb 3 '17 at 0:38
  • \$\begingroup\$ how do you tell unity to remove the trees? is it foreach(tree in toberemoved) remove(tree); cause that will cause a O(n²) time complexity unless unity uses a hashset to store them. \$\endgroup\$ – ratchet freak Feb 3 '17 at 8:39
  • \$\begingroup\$ @ratchetfreak I meant in the editor \$\endgroup\$ – mr-matt Feb 3 '17 at 9:07

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