![]() The distribution of light on a rough surface can only be approximated by a statistical method, and this distribution can be expressed by using ** Roughness ** as a parameter. The rougher the surface, the more chaotic the reflected light, and the more obvious the trailing effect of highlight reflection on the contrary, the smoother the surface, the more consistent the light reflection direction, and the sharper the highlight. PBS rendering technology is based on Microfacets (micro surface element) theory, which describes that any surface is composed of tiny planes on the microscopic level. Intuitive parameter interface, such as roughness, metallicity, basic color Robust parameter control (such as roughness and metallicity), it is not easy to produce unreasonable material performance Linear parameters, support any number of layers of material mixing Real-time rendering performance, similar to traditional Blinn-Phong model Its advantages are concentrated in the following aspects: UE4's material rendering fully embraces the physics-based shading model. This article mainly analyzes the art production and technical realization of " Paragon " from the role rendering technology. It serves as a test field for Unreal Engine technology, and also integrates a lot of Epic's technical exploration based on the direction of physical rendering. " Paragon " is a realistic MOBA game made by Epic. ![]()
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