Soil Draft Physics applies realistic implement draft and tyre traction based on real soil, using agricultural engineering standards including ASABE D497 draft and Brixius traction. This beta version supports feedback and log.txt reports.
Features
- Realistic implement draft for ploughs, rippers, subsoilers, cultivators, disc harrows and seeders, based on implement type, width, depth and speed
- Uses Precision Farming soil types and soil moisture, from sand to silty clay, and works without Precision Farming using a medium soil
- Without Precision Farming, fields use loamy sand, sandy loam, loam and silty clay in natural patches across the map, different on each map, the same every time on the same map and identical for everyone in multiplayer
- Soil moisture varies by soil type, with sand drying fast and clay staying heavy for days
- Tyre traction and rolling resistance are calculated from real tyre sizes, such as 710/60R38, wheel load and pressure
- Automatic tyre pressure based on axle load
- CTIS support with 4×4 Traction System, VarioGrip style
- Fixed pressure on tractors without CTIS
- Tracks supported
- Replaces the game’s own draft force, with no double counting
- Clean, movable HUD: Ctrl+Shift+H shows or hides it, and Ctrl+Shift+M moves it with the mouse
- HUD displays depth or mode, draft, soil, moisture, slip, sinkage and grip used
- Icon HUD with the tractor on a cut of the soil, darker soil colour when wet, sinking wheels, implement tines at the real depth and red wheel flashes on high slip
- The full panel remains available in the menu
- Automatic soil selection uses Precision Farming or the mod’s own soil types
- Compatible with Mud System Physics and Tractor Terrain Dynamics, with tyre grip handed over to them automatically
- Settings are stored in
modSettings/FS25_SoilDraftPhysics.xml, including intensity and traction scale
BETA: Feedback and log.txt reports are welcome. Not recommended with Mud System Physics or Tractor Terrain Dynamics.
Changelog
- V1.0.0.0
First full release, beta 3 plus the changes below.
Own soil types: without Precision Farming, the fields are no longer all the same soil. Loamy sand, sandy loam, loam and silty clay appear in natural patches across the map, different on each map, the same every time on the same map and identical for everyone in multiplayer. Draft, grip, sinkage and drying follow these soil types. With Precision Farming active, its soil map is used.
Settings menu in the game: Esc > Settings > General > Soil & Draft Physics. Options include soil types, Auto for Precision Farming or own soil types, Own, Off for medium soil, HUD on or off, HUD style, icon size, tractor photo, draft force and intensity, whether the implement really moves with depth, tyre grip, rolling resistance, wheel sinkage and amount, and diagnostic log. No more editing the XML by hand.
Icon HUD in the same style as 4×4 Traction System and Hydraulic Suspension: the tractor on a cut of the soil, soil colour darker when wet, wheels sinking, implement tines at the real depth, and wheels flashing red on high slip. It displays depth or mode, draft, soil, moisture, slip, sinkage and grip used. The full panel is still available in the menu.
Moving the HUD with Ctrl+Shift+M: the camera and tractor no longer react to the mouse while dragging. Esc, Enter, right click or Ctrl+Shift+M finish.
Fix: in AUTO depth mode, ploughs and cultivators could be lifted above the factory position and the tines came out of the soil. AUTO now only lightens the draft, and the implement is never raised above its factory working position.
