 The engine received a variety of significant upgrades, including pre-baked Global Illumination, reflection mapping, volumetric fog, dynamic weather, and dynamic foliage to name but a few examples.For Unity there has been a similar upgrade, advanced control mechanics with Physically Based Rendering (PBR) being the stand-out addition, enabling materials, objects and surfaces to look and react more realistically to lighting, shading and shadowing.Furthermore, the Global Illumination system is now more realistic with the addition of volumetric technology, physics-led objects react more realistically, and cloth behaves in a realistic manner on the protagonist, in the environment, and on other characters.