Phong Tag: Tag Properties

Reference Object Manager Tags Menu CINEMA 4D Tags Phong Tag

Tag Properties

Angle Limit
Phong Angle [0..180°]
Use Edge Breaks

When in edge mode, CINEMA 4D allows you to break the Phong shading along edges using the Break Phong Shading command (Structure menu).

The broken edges in red and the rendered result.

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.

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.

Left: Use Edge Breaks disabled; Right: Use Edge Breaks enabled