How can I make a model have more than one skin?

[ardosos]

I thought I finally got a model to work with multiple skins, but they both appear to be the same in garrysmod. And before you ask, yes, the texture files are different. Here is the qc:

$modelname		"props/noggspanel.mdl"
$body mybody	"noggspanel.smd"


$staticprop
$surfaceprop	"metal"
$cdmaterials	"models/props"
$scale			1
$texturegroup skinfamilies
{
	{ "models/props/noggspanel.vmt"  }
	{ "models/props/noggspanel01.vmt" }
}
$sequence idle	"idle.smd" loop fps 1
// Model uses material "noggspanel.vmt"
// Model uses material "noggspanel01.vmt"
$collisionmodel	"noggspanel-phy.smd" { 
	$automass
	$concave
}

$keyvalues
{
   "prop_data"
   {
       "base"  "Metal.Medium"
   }
}

and the material files:

"VertexLitGeneric"
{
	"$basetexture" "models/props/noggspanel"
	"$surfaceprop" "metal"
	"$alphatest" 1
}

"VertexLitGeneric"
{
	"$basetexture" "models/props/noggspanel01"
	"$surfaceprop" "metal"
	"$alphatest" 1
}

The model is called noggspanel, and the materials are noggspanel and noggspanel01. I find it interesting that garrysmod recognizes the fact that the model has two skins, yet they both spawn the same. What am I doing wrong?

[.Omo]

Change it to this:

$cdmaterials	"models/props"
$texturegroup skinfamilies
{
	{ "noggspanel.vmt" }
	{ "noggspanel01.vmt" }
}

[ardosos]

Aha! It worked!(even though when I first tried this it spawned as pink-and-black checkers, but when someone else tells me to, it works) Thank you!