UnlitTwoTexture

• Two base textures are multiplied together and can be transformed independently. (Just like the Multiply blending mode in typical image editors.)
• Unrelated to WorldVertexTransition, which is used for making alpha fading transitions between two base textures on displacements.
  

Note:This Shader works on both Brushes and Models

Confirm: Do models require $model in branches before ?

Parameters

$basetexture The first Texture that is used, how it is used depends on the effects which are enabled. By default $basetexture will be multiplied with $texture2.
$frame $basetexturetransform
$texture2 Second Texture that is used in different ways depending on which effects are used.
By default $basetexture will be multiplied with $texture2.

Note:First texture is applied via $basetexture.

$frame2 $texture2transform
$color $color2
$beachfoam

Important:This parameter is intended to be used with $additive.

On the Dangerzone Wave Model, both $texture2 and $basetexture use the 'Beachwaves' Texture.

Todo: Do both Parameters need to use the same Texture?

The 'Beachwaves' Texture uses the RGB channels for different purposes.

Todo: Find a better Name for the Texture...

• Red Channel : Waves Albedo Texture

Todo: Can this be tinted using $color/$color2?

• Green Channel : Distortion/Noise for the Red Channel
• Blue Channel : Distortion/Noise for the Red Channel

Todo: Further documentation required.

$CrosshairMode $texture2 is used for a framebuffer texture.
The result will be blended between Crosshair Texture + CrosshairTint and Crosshair Texture * CrosshairTint using Average Luminance of $texture2 * $CrosshairColorAdapt $CrosshairTint $CrosshairColorAdapt

E.G.

Stock .vmt hl2/materials/models/props_combine/portalball001_sheet.vmt

"UnlitTwoTexture"
{
	"$basetexture" "models/props_combine/portalball001_sheet"
	"$texture2" "models/props_combine/portalball001b_sheet"
 	"$model" 1
	"$nocull" "1"
	"$additive" "1"
	"Proxies"
	{

		"TextureScroll"
		{
			"texturescrollvar" "$texture2transform"
			"texturescrollrate" -.2
			"texturescrollangle" 60
		}
	}

}

models/props/hr_massive/beachwaves/beachwaves.vmt

UnlitTwoTexture
{
    "$beachfoam"   "1"
    "$basetexture" "models/props/hr_massive/beachwaves/beachwaves"
    "$texture2"    "models/props/hr_massive/beachwaves/beachwaves"
    "$additive"    "1"
}

See also

• LightmappedTwoTexture