How to get the next and last nodes

Yea, I’ve already got a node-script there, so I’d rather not use lookVector.
I’ve never done some raycasting before, as I am more experienced w/ web development and other things so can you give me an example of what to look into?
Thanks for your amazingly detailed answer,
Sasial.

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I can try to search some YouTube tutorials if that would help.
I’ve found some videos that might help. https://www.youtube.com/watch?v=40FuZUA5Y-o
https://www.youtube.com/watch?v=flRS157lJGc I didn’t watch them, but I’ll take a look, because I am really interested as well.

EDIT: Also found another interested topic on DevForum related to Raycasting. I don't understand raycasting - #10 by x86_architecture

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