This page contains information about the V-Ray Hair Variation Texture in V-Ray for Modo.
The V-Ray Hair Variation texture varies hair strands' shading properties. It can be used together with the V-Ray Hair Material to control the look of the hair on many of its channels.
UI Path: ||Shading viewport|| > Shader Tree > Add Layer button > V-Ray Textures > V-Ray Hair Variation
Output Type – Specifies how colors are blended.
Distance along strand – Blends between colors based on the position of the shaded point along a hair strand between the root and the tip of the hair.
Random by strand index – Blends between colors randomly based on the index of each strand.
Distance along strand absolute – Provides information about the shaded part of the hair strand using absolute distance. This option uses the Hair Max Distance parameter to allow length-dependent mapping. For instance, when used with a gradient, this allows for all hair strands (regardless of length) to have a root color all up to the same length followed by the rest of the ramp.
Hair Max Distance – Allows the user to set the max strand length when using Distance Along Strand Absolute. Typically, this value should be equal to the longest strand of hair. This option is mappable, allowing different parts in a hair system to have different max lengths.
- Use a Gradient texture with a Shader tree effect set to a V-Ray Hair Material channel you want to modify. Set the Input parameter of the Gradient map to Driver A for example, and the the V-Ray Hair Variation texture effect to the same Driver A.