Fresnel Dielectric

菲涅耳介质

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Fresnel Dielectric

菲涅耳介质

The Fresnel effect is already part of the BSDF Nodes in order to be able to simulate their reflection behavior for conductive and dielectric materials physically correctly. If you want to make other material properties such as a color change, depending on the angle of view of the surface, you can use the Fresnel Dielectric Node, which outputs a simple grayscale gradient. 菲涅耳效果已经成为 BSDF 节点的一部分，以便能够正确地模拟导电和介质材质的反射行为。如果你想让其他材质的属性，比如颜色变化，取决于表面的视角，你可以使用菲涅尔介质节点，它输出一个简单的灰度梯度

When light strikes a dielectric surface, part of the light is refracted into the object. The remaining part is reflected and thus creates a reflection. This surface-dependent behavior can be described for many materials as a numerical value referred to as the Index of Refraction. Unlike the Fresnel Conductor Node, however, there is no coloring here, but only gray values are output, whose brightness expresses the intensity of the reflective properties depending on the viewing angle.