WorldGGX

WorldGGX is a material shader available in the following Source engine games: Day of Infamy , Insurgency . It was first introduced in Day of Infamy and back ported to Insurgency. Displacement blending similar to WorldVertexTransition is supported.

Bug:This shader won't receive light from env_projectedtextures like the player's flashlight. If the player is allowed to use a flashlight, the best case scenario is to only use this shader on materials in lit up areas.  [todo tested in?]

Supported Parameters

$basetexture to $basetexture2 <void>

Diffuse texture.

$bumpmap to $bumpmap2 <void>

Normal mapping.

Bug:Animated bump maps aren't possible as the shader lacks the $bumpframe parameter.  [todo tested in?]

$color2 <void>

Color tinting.

$detail <void>

Detail texturing.

$envmap <void>

Specular reflections.

$blendmodulatetexture <void>

Modulation texture for Displacement blending.

Blend Mapping Parameters

$blendmap to $blendmap2 <texture>

Blend map to use for specular and parallaxing (if $parallax is 1). Can also take a height map.

$heightscale to $heightscale2 <float>

A scalar for the $blendmap(2)'s parallax effect.

$heightblend <boolean>

Enabling allows use of $blendmap and $blendmap2.

$heightblendoffset <float>

Offsets the blend map, default is 0.5.

$parallax <boolean>

Enabling uses the blend map as a height map for a parallax effect.

$selfshadow <boolean>

Enabling creates ambient occlusion around the parallax effect.

Misc. Parameters

$roughnessmultiplier <float>

Multiplier for roughness.

Todo: More detail, what is roughness?

$lumroughness <boolean>

Enabling makes use of the luminance to affect the roughness, default is 0.

Todo: More detail, luminance of the $basetexture?

See also

• SurfaceGGX, similar shader used for models.