void InitFriction()
{
const float bs = 2;
const float ts = bs + bs / 4;
for (int i = 0, ni = 20; i < ni; ++i)
{
Vector3 p = new Vector3(-ni * ts / 2 + i * ts, bs, 40);
SoftBody psb = CreateSoftBox(p, new Vector3(bs, bs, bs));
psb.Cfg.DF = 0.1f * ((i + 1) / (float)ni);
psb.AddVelocity(new Vector3(0, 0, -10));
}
}