Torus

A torus is a 3D shape formed by a small circle that rotates around a bigger circle. It usually looks like a circular ring, or a donut.

Default torus (smooth)

Torus with 180-degree horizontal circumference

Torus with 180-degree vertical circumference

Torus without smoothing

You can customize the shape of a torus with these shape properties:

Property:	Description:
Rows	Set the complexity of the Mesh, together with the Columns value. You can enter a value from 3 to 32. The higher the value, the smoother the shape, but at the cost of more polygons to calculate. The default value is 16.
Columns	Set the complexity of the Mesh, together with the Rows value. You can enter a value from 3 to 64. The higher the value, the smoother the shape, but at the cost of more polygons (and therefore more computation). The default value is 24.
Define Inner / Out Radius	Enable this option if you want to specify the value for the inner radius. Disable this option if you want to specify the value for the radius of the tube instead. When you enable this option, the Radius property becomes the Outer Radius property, and the Tube Radius property becomes the Inner Radius property.
Outer Radius	Set the amount of the outer radius in meters. Default value is 1. Note: This property is only available when the Define Inner / Out Radius property is enabled.
Inner Radius	Set the amount of the inner radius in meters. Valid values range from 0.0009999871 to the Outer Radius value. Default value is 0.4. Note: This property is only available when the Define Inner / Out Radius property is enabled.
Radius	Set the radius of the entire torus in meters. Default value is 1. Note: This property is only available when the Define Inner / Out Radius property is disabled.
Tube Radius	Set the radius of the tube itself in meters. Valid values range from 0.01 to the Radius value. The default value is 0.3. Note: This property is only available when the Define Inner / Out Radius property is disabled.
Horizontal Circumference	Set the degree of the torus's circumference. For example, if you set this value to 180 (as the image demonstrates), it looks like someone cut half of the torus away (like leaving half of a donut). Default value is 360 (full torus).
Vertical Circumference	Set the degree of the tube's circumference. For example, if you set this value to 180 (as the image demonstrates), it looks like a half-pipe. Default value is 360 (full tube).
Smooth	Enable this option to smooth the edges of the polygons (the default).