Radii

The Radii beam type allows you to create spherical facets that ideally diffuse light.

With the radii beam type, a definition of certain parameters is required:

  • You need to define the Radius of the facet.
  • You need to select an Orientation: concave or convex.

A concave surface is curved inwards.

A convex surface is curved outwards.

Note: For each element, the convexity/concavity is defined with regards to the source.

Radii is available for Rectangular, Circular, Freestyle grid types.

Rectangular

X radius: Radius of the facet along X grid axis.

Y radius: Radius of the facet along Y grid axis.


Convex Lens Concave Lens
Circular

Start radius: Smallest value of the radius of curvature of the elements along the transverse axis.

End radius: Highest value of the radius of curvature of the elements along the transverse axis.

Radial radius: Radius of the elements along the radial axis.
Convex Lens Concave Lens
Freestyle

Freestyle Rectangular: Parameters are the same as the ones used for the rectangular type.

Freestyle Circular: Parameters are the same as the ones used for circular type.