$alphatest: Difference between revisions
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The <code>[[$alphatest]]</code> command specifies that the material uses a mask to determine binary opacity. White represents fully opaque, while black represents fully transparent. Any values in-between are rounded to either 0 or 1. This effect is similar to [[$translucent]] except for the fact that it can not go between fully opaque or fully translucent and the engine can sort it properly when layered. | |||
==VMT syntax example== | |||
$alphatest1 <[[bool]]> | |||
[[LightmappedGeneric]] | |||
{ | |||
[[$basetexture]] glass\window001a | |||
'''$alphatest 1''' | |||
'''$allowalphatocoverage 1''' | |||
'''$alphatestreference .5''' | |||
} | |||
==Additional parameters== | |||
; <code>$alphatestreference [[float]]</code> | |||
: Specifies the value in which the effect is rounded to 1. A value of ".3" will create a thicker shape while a value of ".7" will create a thinner shape. | |||
; <code>$allowalphatocoverage <bool></code> | |||
: Creates an edge with .5 opacity. Any values between 0 and 1 are rounded into .5 opacity. Can be used for softer edges. This parameter is incompatible with <code>[[$alphatestreference]]</code> | |||
== See also == | |||
*<code>[[$alpha]]</code>, for texture-wide translucency | |||
*<code>[[$distancealpha]]</code>, for vector-like alpha edges | |||
*<code>[[$translucent]]</code> | |||
[[Category:List of Shader Parameters|T]] | |||
Revision as of 20:22, 21 April 2017
The $alphatest command specifies that the material uses a mask to determine binary opacity. White represents fully opaque, while black represents fully transparent. Any values in-between are rounded to either 0 or 1. This effect is similar to $translucent except for the fact that it can not go between fully opaque or fully translucent and the engine can sort it properly when layered.
VMT syntax example
$alphatest1 <bool>
LightmappedGeneric { $basetexture glass\window001a $alphatest 1 $allowalphatocoverage 1 $alphatestreference .5 }
Additional parameters
$alphatestreference float- Specifies the value in which the effect is rounded to 1. A value of ".3" will create a thicker shape while a value of ".7" will create a thinner shape.
$allowalphatocoverage <bool>- Creates an edge with .5 opacity. Any values between 0 and 1 are rounded into .5 opacity. Can be used for softer edges. This parameter is incompatible with
$alphatestreference
See also
$alpha, for texture-wide translucency$distancealpha, for vector-like alpha edges$translucent