With the highlight diagnosis lines of equal lightness are displayed on surfaces. These lines connect the surface points where the angle of incidence of the light is constant, they are called 'Isophotes'. The brightest reflection occurs at an angle of incidence = 90deg. For the computation of the isophotes all points will be determined in which the surface normal has the same direction. The angle between light direction and surface normal is constant. The course of highlight lines illustrates – like reflection lines – the shape of the surface and the quality of surface matchings. In contrast to the reflection diagnosis, the highlight diagnosis does not depend on the view direction. Note:
The highlight analysis can only be displayed in the view mode Shading with Material. If another view mode is active, a
corresponding warning will be output when starting the command.
|