$alpha

Scales the opacity of an entire material by the given value. 1 is entirely opaque, 0 is invisible.

If any material on a brush has $alpha, the brush will stop affecting VIS and become entirely transparent to NPCs from every angle.

This may be used with $translucent.

Syntax

$alpha <normal>

See also

• $alphatest, for binary opacity.
• $distancealpha, for vector-like alpha edges
• $vertexalpha
• $translucent, for per-pixel opacity.