Effectors are the most valuable and the most powerful feature of this release. With just a few mouse clicks, artists can tweak the laws of physics or alter any simulated field based on built-in rules. For example, Effectors can drive setups where vorticity is controlled by velocity, gravity is controlled by smoke color and fire is created in voxels where velocity is above a user-defined threshold. All of this can be further refined by powerful test conditions or even confined to the Effector's gizmo.