Surface snap sensitivity in the old 3d tracker

[randy]

This is a known issue. It’s likely a double-assigned hotkey, as discussed here.

3D Tracking Query

So snapping vertices of bicubics and exbicubics should work. I use Smoke hotkeys. Rumor has it the Shift-snap in Flame Hotkeys is double assigned…check out the hotkey editor…search for “Snap” and see “Snap Object to Point” and “Snap Object to Z Depth.” Reassign the z depth one and boom, that should work. Thanks to @eric_mason.