Using the knife tool

Question

Hello everyone
i saw on minute 4:45 that the lecturer used the Knife tool to make cut on the end of the Christmas tree.
why is that?
i also follow along and it made half loop cut.
why make half loop cut?
why not just make full loop cut around the tree?
why the cut at all? it doesn't make any different if there is loop cut or not, it just make more geometry?

Thanks for the answers!

Answer 1 · 2025-09-23T12:41:18Z

Omar Domenech replied September 23, 2025 12:41pm

Solution

That cut with the knife was to tighten up the tip of the tree, to create a supporting loop or holding edge for the SubD Modifier to not droop the tip down too much. Since you have lots of triangles and Ngons in that area, a loop cut will not go through, so you use the knife tool to make the cut. It is a super common practice.

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Answer 2 · 2025-09-23T16:39:51Z

e

replied September 23, 2025 4:39pm

Can you show me example, I don't quite understand why we can't just use loop cut

1 love

Answer 3 · 2025-09-23T16:46:20Z

Martin Bergwerf replied September 23, 2025 4:46pm

Hi Eden,

In this case, you could also have used a Loop Cut. There are often many ways to accomplish things in Blender

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Answer 4 · 2025-09-23T17:13:48Z

Omar Domenech replied September 23, 2025 5:13pm

Yeah as Martin says, in Blender there's like 10 ways to accomplish the same thing. People approach a challenge in different ways, doesn't mean one is correct and the other incorrect, you just do it with whatever you're most comfortable with.

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Answer 5 · 2025-09-23T17:17:52Z

e

replied September 23, 2025 5:17pm

Ohh OK,

Thanks Martin, I thought I missed a step or didn't understand clearly what lecturer did.

Thanks!

👍

1 love