9.5.2

772 • CHAPTER 17
OBJECT MANAGER • 773
When in edge mode, CINEMA 4D allows you to break the Phong shading along edges using the
Break Phong Shading command (Structure menu).
When breaking individual edges, the effect will only occur if the end points of the edge are surrounded
by connected polygons. In the following illustration, the effect of breaking will be visible for edge A,
but not for edge B.
Broken Phong edges only work when the Phong tag’s Angle Limit option
is enabled. If you don’t want to use an angle, set Angle Limit to 180 (this
corresponds to no angle limit).
You can enable or disable the effect via the Use Edge Breaks option.
Use Edge Breaks disabled Use Edge Breaks enabled
The following types of NURBS object make use of these new Phong features: Extrude, Lathe and
Sweep. To see the difference, select the NURBS object’s Phong tag and in the Attribute manager,
disable the Use Edge Breaks option. Provided the option is enabled, the edges will be sharp.