Is the exiting surface radiance equivalent to the incident radiance?
rahulmalayappan
In physically-based rendering, often BSDFs have to obey energy conservation, that is incident irradiance(not radiance, which is direction-dependent) must equal exitant irradiance. But some lighting models like Phong shading don't respect this.
Is the exiting surface radiance equivalent to the incident radiance?
In physically-based rendering, often BSDFs have to obey energy conservation, that is incident irradiance(not radiance, which is direction-dependent) must equal exitant irradiance. But some lighting models like Phong shading don't respect this.