Groundmodel on static objects

This guide will guide you through setting a groundmodel on static objects.

If no groundmodel is defined for a static object, 'asphalt' will be used by default.

Pre-requisites

• Make sure that the part of the object you want to have a different groundmodel has its own material.

• Material name can be whatever you want.

• You can assign the same groundmodel to different materials.

How to assign a groundmodel

In the Materials.cs file of your object add this line:

    groundType = "XYZ";

XYZ will have to be replaced with the alias or the name of the groundmodel you want to use.

Example

 singleton Material(gmt_grass)
{
    mapTo = "gmt_grass";
    diffuseMap[0] = "Overlay_Grass-01.dds";
    groundType = "grass";
   useAnisotropic[0] = "1";
};

Here you can find a test object that contains different groundmodels applied to it.

Simply extract it in a level folder you want and add it via the world editor

File:Tsgroundmodel test.zip

Default Groundmodels & Aliases

Here's a partial list of the default groundmodels' names & aliases available.

A full list of available groundmodels can be found in the groundmodels.json file, located in BeamNG.Drive/gameengine.zip/art folder.

Asphalt:

• groundmodel_asphalt1
• rock_cliff
• grid
• concrete
• concrete2
• rocks_large

Gravel:

• rockydirt
• dirt_loose
• dirt_loose_dusty
• dirt_rocky
• dirt_rocky_large
• dirt_sandy

Rock

• no-aliases

Metal

• no-aliases

Grass:

• grass2
• forest

Sand:

• beachsand

Dirt_dusty

• no-aliases

Dirt:

• dirt_grass
• derby_dirt

Ice

• no-aliases

Snow

• no-aliases

Mud

• no-aliases

Custom Groundmodels

It is possible to have your own custom groundmodel, per-level.

You create a folder named "groundmodels" inside your own level's folder.

Inside this folder create a Json file (name can be any) that defines your groundmodel, as in the example below:

/*******************************************************************************
This is an example of how to add per-level custom groundmodels
*******************************************************************************/
{
  "goo" : {
    "adhesionVelocity"           : 1,
    "staticFrictionCoefficient"  : 0.73,
    "slidingFrictionCoefficient" : 0.58,
    "hydrodynamicFriction"        : 0.1,
    "stribeckVelocity"           : 3.0,
    "strength"                   : 1.0,
                
    "fluidDensity"               : 1200,
    "flowConsistencyIndex"       : 1000,
    "flowBehaviorIndex"         : 1.5,
    "dragAnisotropy"             : 0,
    "defaultDepth"               : 0.002,
    "collisiontype"              : "DIRT",
    "skidMarks"                  : false
    /*"aliases"                    : ["dirt", "rockydirt", "dirt_loose", "dirt_loose_dusty", "dirt_rocky", "dirt_rocky_large", "dirt_sandy"]*/
  },
}