Spring box

Neill3d edited this page Oct 6, 2014 · 1 revision

Introduction

Spring box math based on fundamental formule F = -kx

Video

Simple spring box usage

Details

Value parameters

  • Stiff – stiffness of the springs (the higher the value, the more rigid) Hardness is the reaction and the effect of the spring from which she draws a point in the original position.
  • Default value – 0.1
  • Damp – the size of fading fluctuations spring (the more, the less hesitation commit spring) The essence of this parameter under a big question, in practice, it gives some the wrong result, so sometimes fading fluctuations can be regarded as a constant value of 0.10 for example.
  • Default value – 0.0
  • Length – the length of the spring (should be set to 0) A value of zero reference position is the point of going, otherwise the spring will be busy trying to position a specified distance from moving
  • Default value – 0.0
  • Mass – the mass. The more weight the more difficult it is to move the spring with a space or vice versa to return it to its original position.
  • Default value – 1.0
  • Friction – force of resistance that allows “stifle” the dynamics of the spring and return it to its original position. The higher the number the less the effect of spring ”
  • Default value – 0.1
  • EvalSteps – number of spring evaluation substeps per second
  • Default value – 30.0
  • RealTime – checkbox to specify spring evaluation time. When checkbox is on, spring uses system time and play in realtime. When it’s off, spring uses player control local time from time slider (this is for plotting and animation playback).
  • Default value – on (1.0)
  • Zero Frame – frame on which we reset our simulation (for non realtime evaluation). This is when we rewind our animation to the very begining and want to start simulation from that “zero” point
  • Default value – 0 (frame 0)
  • Pos – input position
  • Result – output position

LOG

  • 30.05.2014
  • update real-time evaluation, add new properties for zero frame and number of evaluation steps
  • 13.05.2014
  • now with mobu 2015 support
  • 27.09.2013
  • added mobu 2014 version
  • 30.08.2012
  • mobu 2012, 2013 binary versions
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