$alpha

Stub

This article or section is a stub. You can help by expanding it.

$alpha is a material shader parameter. It 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 VVIS and become entirely transparent to NPCs from every angle.

This may be used with $translucent, although using $translucent here is redundant, as any $alpha different than 1 will already apply the $translucent parameter.

This cannot be used with $alphatest. If used, the material will be invisible. (Does not apply to L4D2)

Bug:Not available in VertexLitGeneric (Is available in L4D2). [todo tested in?]

Syntax

$alpha	<normal>