itch.io

the materials list is a foldout. Click on it and there will be a list where you are able to add a material which changes it visually. The physic material property takes in a physic material. I cam sent a short clip in a few hours.

EDIT:

I've tested it with 2018.4 and there are some names that are different so there are a few manuell steps you need to follow:

1. Remove all [SerializeReference] attribtues in RoadCreator and Intersection

2. Change DrawPositionHandle in the Utility class to the following:

 public static Vector3 DrawPositionHandle(float handleSize, Vector3 position, Quaternion rotation)     {         Color color = Handles.color;         Handles.color = Handles.xAxisColor;         position = Handles.Slider(position, rotation * Vector3.right, handleSize, Handles.ArrowHandleCap, EditorPrefs.GetFloat("MoveSnapX"));         Handles.color = Handles.yAxisColor;         position = Handles.Slider(position, rotation * Vector3.up, handleSize, Handles.ArrowHandleCap, EditorPrefs.GetFloat("MoveSnapY"));         Handles.color = Handles.zAxisColor;         position = Handles.Slider(position, rotation * Vector3.forward, handleSize, Handles.ArrowHandleCap, EditorPrefs.GetFloat("MoveSnapZ"));         Handles.color = Handles.centerColor;         position = Handles.FreeMoveHandle(position, rotation, handleSize * 0.15f, new Vector3(EditorPrefs.GetFloat("MoveSnapX"), EditorPrefs.GetFloat("MoveSnapY"), EditorPrefs.GetFloat("MoveSnapZ")), Handles.RectangleHandleCap);         Handles.color = color;         return position;     }

3. Change SceneView.duringSceneGui += OnSceneGUI; to  SceneView.onSceneGUIDelegate += OnSceneGUI; in ContextClickSelect constructor.

There is one more steps but I'll upload a update with that in a few hours which fixing you not being able to open the material foldout. If you want to fix it now then change  EditorGUILayout.PropertyField(serializedObject.FindProperty("lanes").GetArrayElementAtIndex(tab).FindPropertyRelative("materials"));

to  EditorGUILayout.PropertyField(serializedObject.FindProperty("lanes").GetArrayElementAtIndex(tab).FindPropertyRelative("materials"), true); in RoadEditor.

I'm sorry that you have to change things manually but as Unity changes names I can't create a version that automatically works for both and these changes should only take like a minute with Find And Replace.

EDIT 2: The update has now been posted so if you download it and also follow the instructions above the tools should work in your Unity version.