-- @/=[C]:-1
function getSlipVelEnergyDownPeakForceDepthMats(...)
local wd = M.wheels[i]
wd.lastSlip, wd.lastSideSlip, wd.slipEnergy, wd.downForceRaw, wd.peakForce, wd.contactDepth, wd.contactMaterialID1, wd.contactMaterialID2 = wd.obj:getSlipVelEnergyDownPeakForceDepthMats()
wd.downForce = wd.downForceSmoother:get(wd.downForceRaw, dt)