This option may be specified multiple times. This option can be specified only once. This option specifies the level at which objects appear to reflect their light sources. Value must be a numeric value in the range 0 to 1. A 0 value means means objects appear as dull and matte.
Higher values mean that objects appear more and more shiny.
If this option is not specified, the default is 0. By intentionally computing normals differently than those automatically computed by the VRML browser, one can make a faceted shape appear smooth. Note that this will take much more time and space when value is true. This option specifies the colour that objects reflect by specular reflection. This controls the colour of the highlight on shiny shapes.