<function name="Specular" parent="mesh" type="libraryfunc"> <description> Sets the specular map values. This is `COLOR1` semantic of Vertex Shader. Allows to blend textures of [Lightmapped_4WayBlend](https://developer.valvesoftware.com/wiki/Lightmapped_4WayBlend). Sets the specular map values. This is `COLOR1` semantic of Vertex Shader. Allows to blend textures of [Lightmapped_4WayBlend](https://developer.valvesoftware.com/wiki/Lightmapped_4WayBlend). Require `VERTEX_SPECULAR` flag in C++ code of shader. </description> <realm>Client</realm> <args> <arg name="r" type="number">The red channel multiplier of the specular map.</arg> <arg name="g" type="number">The green channel multiplier of the specular map.</arg> <arg name="b" type="number">The blue channel multiplier of the specular map.</arg> <arg name="a" type="number">The alpha channel multiplier of the specular map.</arg> </args> </function>