Refract

A refracting func_brush.
The Refract
shaders distorts objects behind it. It is similar to Water
, but does not reflect.

Example
Refract { $normalmap ... // Defines the refraction pattern; may be animated $dudvmap ... // As above when running below DX9 $refracttint "[1 1 1]" // Colors the refraction $refractamount 0.2 // Refraction strength; use low values }

$additive
does not work but values greater than one for $refracttint
can make it brighten instead of darken.