Optionaldampingvelocity damping per second (exponential); 2.5 when omitted. Raise it while a structure settles
Optionalgravitydownward acceleration in units per second squared; 520 when omitted (a 1-unit-per-pixel scale)
Optionalgroundhow much of a node's sideways motion the ground removes while it touches, 0 to 1; 0.5 when omitted
Optionaliterationsconstraint iterations per substep; 2 when omitted
Optionalsmoothingtime constant of the load smoothing used for breaking, in seconds; 0.06 when omitted
Optionalstepthe frame time one step advances, in seconds; 1/60 when omitted
Optionalsubstepssubsteps per step; 16 when omitted. More is stiffer and steadier, and costs linearly
Construction options for
XpbdWorld. Units are the game's own: gravity, stiffness and strength share one scale.