$alpha: Difference between revisions
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Bug:Not available in VertexLitGeneric (Is available in L4D2).
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{{ | {{LanguageBar|title=$alpha}} | ||
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'''<code style="color:white">$alpha</code>''' is a [[material]] [[shader]] parameter. It scales the [[opacity]] of an entire material by the given value. 1 is entirely opaque, 0 is invisible. | '''<code style="color:white">$alpha</code>''' is a [[material]] [[shader]] parameter. It scales the [[opacity]] of an entire material by the given value. 1 is entirely opaque, 0 is invisible. | ||
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This may be used with <code>[[$translucent]]</code>, although using <code>[[$translucent]]</code> here is redundant, as any <code>[[$alpha]]</code> different than 1 will already apply the <code>[[$translucent]]</code> parameter. | This may be used with <code>[[$translucent]]</code>, although using <code>[[$translucent]]</code> here is redundant, as any <code>[[$alpha]]</code> different than 1 will already apply the <code>[[$translucent]]</code> parameter. | ||
This cannot be used with <code>[[$alphatest]]</code>. If used, the material will be invisible. | This cannot be used with <code>[[$alphatest]]</code>. If used, the material will be invisible. (Does not apply to [[L4D2]]) | ||
{{bug|hidetested=1|Not available in [[VertexLitGeneric]] (Is available in [[L4D2]]).}} | |||
==Syntax== | ==Syntax== | ||
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*<code>[[$distancealpha]]</code> | *<code>[[$distancealpha]]</code> | ||
*<code>[[$vertexalpha]]</code> | *<code>[[$vertexalpha]]</code> | ||
[[Category:Shader parameters|alpha]] | |||
Latest revision as of 07:13, 20 May 2025
$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).Syntax
$alpha <normal>