Modulate

GIF Animation showing "Modulate" shader in action.

Modulate is a Pixel shader available in all Source games. It modulates the colors of any pixels behind it.

A practical application of this shader is to create bloom-boosting textures, to create fake eye adaptation inside interiors. Other uses include faking various features that Source may not support, such as vertex coloring or lightmapping on models, by creating a surface above the first one to modulate it.

Description

Demonstration of normal bloom vs bloom boosting using $mod2x 1 with white basetexture

Picture showing the difference between $mod2x 0 and 1.

Accepts only the following parameters:

$basetexture $mod2x $nocull

Note:Does not accept any translucency parameters, including $alpha, $alphatest, $additive and $translucent.

See also

• Refract
• Water