In Blender is it possible and how to subtract/remove the parts of the two tubes that are under the roof of the structure? I tried boolean subtract but it's not doing it for me or maybe i am using it the wrong way.
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$\begingroup$ You might find this helpful if you are considering using Geometry Nodes: blender.stackexchange.com/questions/261838 $\endgroup$– quellenform ♦Commented Jul 5, 2023 at 16:05
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1 Answer
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You could use the Mirror modifier: Create your tunnel (here it is aligned on Z), create 2 empties that you put at the same location:
Give your object a Mirror modifier with one of your empties as Mirror Object, enable the Axis and Bisect options (here on X), rotate the empty -45° on Z:
Give it a second Mirror modifier with the other empty as Mirror Object, enable the Axis and Bisect options (here on X again), rotate the empty -135° on Z:
answered Jul 5, 2023 at 15:50
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2$\begingroup$ Would it be fair to call this Q and your A a duplicate of blender.stackexchange.com/a/193965/35559 ? $\endgroup$– Robin Betts ♦Commented Jul 5, 2023 at 15:56
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$\begingroup$ Sure, except my answer here is better $\endgroup$ Commented Jul 5, 2023 at 15:57
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$\begingroup$ It's snappier, for sure. Let's leave it be, unless others start voting it out. $\endgroup$– Robin Betts ♦Commented Jul 5, 2023 at 16:01
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