Star Lens Effect

A Star is larger than a Ray effect and is composed of 0 to 30 spokes, instead of hundreds like a ray.

Adding a star to the light

Interface

Star Element rollout, Parameters panel

Name
Displays the name of the effect. With Lens Effects, you can have many different effects under one instance of Lens Effects. To keep them in order, it is necessary to name them to make sure that when you change parameters you are changing the parameters to the correct effect.
On
Applies the effect to the rendered image when activated.
Size
Determines the size of the effect.
Intensity
Controls the overall brightness and opacity of the individual effect. Higher values produce a bright, more opaque effect, and lower values produces a dim, transparent effect.
Width
Specifies the width of the individual spokes, as a percentage of the overall frame.
Angle
Sets the starting angle in degrees in which the star spokes point. You can enter both positive and negative values so, when animated, the star spokes rotate in a clockwise or counterclockwise direction.
Taper
Controls the taper of the individual spokes of the star. Taper widens or narrows the tips of the individual star points. Low numbers create a sharp point, while high numbers flare the points.
Sharp
Specifies the overall sharpness of the star. Higher numbers produce crisp, clean, and clear stars. Lower numbers produce more of a secondary glow look. Range=0 to 10.
Qty
Specifies the number of spokes in the star effect. The default is 6. Spokes are spaced at equidistant points about the center of the flare.
Glow Behind
Gives the effect the ability to be displayed behind objects in your 3ds Max scene.
Occlusion
Determines how much the Lens Effects Scene Occlusion parameters will affect the particular effect. The value entered determines what percentage of occlusion set in the Lens Effects Globals panel will be applied.
Squeeze
Determines whether the effect will be squeezed. When activated, the effect will be squeezed according to Lens Effects Globals under the Parameters panel in the Squeeze spinner.
Use Source Color
Mixes the source color of the light or object you are applying the effect to and the color or mapping set in the Radial Color or Circular Color parameters. A value of 0 uses only the values set in the Radial Color and Circular Color parameters while a value of 100 uses only the light or objects source color. Any value between 0 and 100 will render a mix between the source color and the effect’s color parameters.
Radial Color group

The Radial Color settings affect the inner and outer colors of the effect. You can set the color swatches to set the inner and outer colors of the Lens Effect. You can also use bitmaps such as gradient or cellular to determine the radial color.

Falloff Curve
Displays the Radial Falloff dialog in which you can set weights for the colors used in Radial Color. By manipulating the Falloff Curve you can make the effect use more of one color or map than the other. You can also use a map to determine the falloff when a light is used as a Lens Effects source.
Section Color group

Selection Color determines the color of the effect by using three different color swatches that are matched to the three sections of the effect. A map can also be used to determine section color.

Mix
Mixes colors set in Radial Color and colors set in Section Color. Setting the spinner at 0 will only use values set in Radial Color while setting the spinner at 100 will only use values set in Section Color. Any value between 0 and 100 will mix between the two values.
Falloff Curve
Displays the Circular Falloff dialog in which you can set weights for the colors used in Section Color. By manipulating the Falloff Curve you can make the effect use more of one color or map than another. You can also use a map to determine the falloff when a light is used as a Lens Effects source.
Radial Size group

Determines the radial size around the particular Lens Effect. Clicking the Size Curve button displays the Radial Size dialog. Using the Radial Size dialog you can create points on a line and move those points along a graph to determine where the effect should be placed around the light or object. You can also use a map to determine where the effect should be placed. A checkbox is used to activate the map.

Star Element rollout, Options panel

See Lens Effects Rendering Effects: Options Panel.