https://forum.unity.com/threads/how-to-get-value-of-distance-between-agent-obstacles-with-using-rayperceptionsensor3d.1043338/ @Luke-Houlihan in this thread it appears that the sensor output is normalized. I only have a few simple 2d vectors to normalize, I have tested that they are not going past 1, and yet I am getting significantly better results from using the normalization hyperparamter than manually normalizing my vectors.