If you search for sketchy ffd sketchup plugin tutorial , you will find dated videos. Here is the modern workflow.
Tips to get the most out of it
Mathematically, this lattice defines a local coordinate system. When the control points are moved, the underlying space is warped, and any geometry within that space is deformed correspondingly. This method offers two distinct advantages:
✅ – FFD changes are permanent once applied. ✅ Keep lattice low-res – 3×3×3 or 4×4 max for complex shapes. ✅ Use on groups only – Never on loose geometry. ✅ Apply after scaling – Deforming then scaling ruins UV-like mapping. ✅ Save before each FFD session – Crash recovery. ✅ Combine with SubD – Use FFD for broad shape, then SubD for smoothing.
SketchyFFD adds a around your object. Think of it like putting your 3D model inside a flexible box of jelly. By pulling and pushing the corners or edges of this "jelly box" (control points), you smoothly deform the geometry inside. How to Use SketchyFFD