When using 4 wheel steering with control modes, fully implemented, i did not find a solution to get force feedback working, for front axle. Let me explain first 4 wheel steering a bit as it is not something common : 4 Wheel steering with control modes use two separate electrics values for steering inputs, one for front and one for rear. Those new signals are defined in a custom_4ws.lua file. We have : electrics.values.fw_steering_input (for front axle steering input) electrics.values.rw_steering_input (for rear axle steering input) Those signals take their values from : "electrics.values.steering_input" This is the main steering input, defined in BeamNG. and from "electrics.values.rear_steering" This is an auxiliary steering input, normally used for rear steering, but could be used too for front steering according to the selected steering mode. It is defined in a custom input json file. Then we have something that can be as simple as this inside custom_4ws.lua : electrics.values.fw_steering_input = electrics.values.steering_input * ffactor electrics.values.rw_steering_input = electrics.values.rear_steering * rfactor Where ffactor and rfactor are coefficients used to define steering modes. For 2 Wheel front steering, vehicles are not using those 4 wheel steering electrics signals, i have seen those two solutions in the front axle steering racks, hydros or torsionHydros : First solution : ["st2","st3","st4","f3ll", {"factor":-0.9,"steeringWheelLock":600,"inRate":5,"outRate":5,"inputSource":"steering_input"}], Second solution : ["st2l","st1r", {"factor":0.2, "steeringWheelLock":600, "inRate":1.0,"outRate":1.0}], Then if i want to implement 4 wheel steering with control modes, i need to modify the front axle steering hydros so that they can receive input from this signal : electrics.values.fw_steering_input. The problem is that if i try to replace "inputSource":"steering_input" by "inputSource":"fw_steering_input", Front steering is still working but loose Force Feedback. Same problem if i add "inputSource":"fw_steering_input" to this line : ["st2l","st1r", {"factor":0.2, "inputSource":"fw_steering_input", "steeringWheelLock":600, "inRate":1.0,"outRate":1.0}], Again in this case Front steering is working, but loose Force Feedback. How to send force feedback signal back to steering_input when using an intermediary electrics.values.fw_steering_input signal ? Thanks for helping
Seems that hydros.lua (inside BeamNG.drive\lua\vehicle) watch only for "steering_input" source input name to classify hydros as steering hydro and allow Force Feedback as well as steeringWheelLock input angle adjusts on them. Then i did modify hydros.lua, ligne 570 : Code: --h.inputSource = h.inputSource == "steering" and "steering_input" or h.inputSource replaced by : Code: h.inputSource = (h.inputSource == "fw_steering_input" or h.inputSource == "fw_left_steering_input" or h.inputSource == "fw_right_steering_input") and "steering_input" or h.inputSource FFB is working with this modification but source Input signal is lost : if the electrical signal fw_steering_input is set in the jbeam file, it is replaced by the steering_input signal. Any idea to get that working ? (FFB and 4 wheel steering).
