Width – Specifies the width of the strand. By default this value is in world unitsWidth Mult – A hair width multiplier. It is used as base width if a "width" attribute is not found.
Tesselation – This option allows Allows manual control over the number of subdivisions when intersecting the spline based hairs.
Min. Pixel Width – Sets the minimum pixel width of each hair strand to help ensure samples are taken consistently between pixels. A value of 0 means no minimum width is applied, but increasing it helps make sure each strand is consistently rendered. This additional calculation increases render times, but smooths the hair width.
Render as Smooth Curves – When enabled, hair strands are represented as splines instead of line segments.
Width in Pixels – When enabled, the Width Mult parameter is calculated in pixels.
Generate W Coord – When enabled, V-Ray generates a W mapping coordinate that represents the position of the shaded point along the hair strand. This is useful for mapping a ramp texture, for example.
