I've made this physics based ground VFX system in Unreal Engine for an AA Off-Road Game. The system use physic parameters to drive the Particle (Niagara) system. It handles: - Tire radius and width - Rotation speed (RPM) and direction - Vehicle velocity - Longitudinal and lateral tire force for spinning and skidding - Surface type - Ground stickiness - Ground color - stone rate - fluid surface deepness - fluid dirtiness

Here we present technical details behind rendering of Mud and Water in Spintires:MudRunner, a driving simulation game, developed by Saber Interactive and published by Focus Home Interactive on Xbox One, PlayStation 4 and PC (Steam).