Eyes
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This article is about the obsolete shader. For the succeeding shader, see EyeRefract. For the QC property of $model, see Eyeball./ For the tool, see qc_eyes.

This entity is obsolete. Its use is discouraged. It may only exist/function in older engine branches.
It has since been deprecated by: EyeRefract.
It has since been deprecated by: EyeRefract.

Alyx's eyeball in Episode Two, using this shader.
Eyes
is a Vertex shader available in all Source games. It creates character eyes by defining a white sclera texture and an iris texture to be drawn on top of it.
Parameters
$basetexture
$iris
$halflambert