https://laserboy.org/code/LB_07_02_2021.zip
In this version the only change is the addition of two new operators in LaserBoy Liquid Math.
clip and _clip
These allow you to define a 3D rectangular solid region of space and eliminate all vectors outside of that region.
The single version clip uses the same region for all frames in a frame_set.
The animated version _clip uses a region that can move, change size and proportion through the frames in a frame_set.
I also did extensive work on the file LaserBoy_Liquid_Math.txt in the doc folder.