metal01.vmt

"VertexLitGeneric"
{
//////////////////////////////////////////////////////////////////////////////////
// Trying to setup a metal effect with Phong and EnvMap simultanusly (WIP)
//
// By: Davi (Debiddo) Gooz
//////////////////////////////////////////////////////////////////////////////////

   $model "1"                    // this texture is made for models, and not ui
   $nodecal "0"                  // allow decals by default
   $nocull "0"                   // render just the face frontside, set one to also render the "inside" of the mesh
   $normalmapalphaenvmapmask "1" // use $bumpmap Alpha channel as $envmaskmap // NOTE: Not work with $basemapalphaphongmask 1 or $basemapluminancephongmask 1
   $allowdiffusemodulation "1"   // allow $color $color2 tint
   $blendtintbybasealpha "0"     // use $basetexture Alpha channel as $color2 mask
   $blendtintcoloroverbase "0"   // where to tint. 0 is under $basetexture. 1 is over the $basetexture (float 0 to 1)
   $surfaceprop "metal"          // control the decal and sound on hit; Buggy in gmod since 2018

   //////////////////////////////////////////////////////////////////////////////////
   // Textures
   //  the basic is $BaseTexture
   // all other parameters are for optimizations and use a single material
   // and a trade-off of optimizations by use more memory
   //////////////////////////////////////////////////////////////////////////////////
   $basetexture "shared/generic_red255"                      // Diffuse or Albedo texture
   $bumpmap "dev/flat_normal"                                // Bump/Normal map | Alpha Channel is used for "$phong 1" mask by default
   $phongexponenttexture "vgui/white"                        // phong modulator, Red channel is exponent; Green channel as $phongalbedotint modulator; Blue channel unused; Alpha channel is for "$rimlightmask 1"
   //$phongwarptexture "models/ministrider/mini_iridescence" // is like an phong color ramp
   //$lightwarptexture "shared/lightwarp_surfacetoonitself"  // is like an diffuse color ramp

   $color2 " [ .9 .9 .9 ] " // used to tint the Albedo, " { 255 255 255 } " default

   $phong "1"                        // enable phong, set zero to disable all phong and rimlight at same time
   $phongboost ".8"                  // multiply phong by this value
   $phongalbedotint "1"              // use the $basetexture's RGB as tint value per textel
   $phongtint " { 83 85 122 } "      // uncomment if you need a solid phong color and $phongalbedotint is 0
   $phongalbedoboost "108"           // for SFM, multiply the tint channel by this value // NOTE: Disabled if $detail is present see: https://github.com/Facepunch/garrysmod-issues/issues/5557
   $phongexponent "4"                // for override the default $phongexponenttexture's Red Channel
   $phongexponent2 "5"               // for CS:GO compatibles, used in specific light sources
   $phongexponentfactor "1.08"       // multiply the $phongexponenttexture red channel by this value
   $phongfresnelranges " [ 1 3 2 ] " // XYZ fresnel values, you can use any float values

   // here the magic, we boost the $basetexture with $detail // NOTE: Breaks $phongalbedoboost
	$detail "shared/generic_blue255"
   // Mental Notes: if you use on one model's vmt, all other materials of the same mdl file should use, or your model will become brighter than expected at $body and $model qc parameters.
	// BUG: GMod cannot handle materials with mixed on/off $detail
   $detailscale "1"        // do not scale and use the original size
   $detailblendmode "1"    // set zero to use as "decal". RGB values higher than 127 make brighter (intense), and lower make it darker. TIP.: use to tunedown the HDR overbright.
   $detailblendfactor ".1" // multiply the $detail by this value. like: how much the effect is in use.

   $rimlight "0"           // rimlight enabled
   $rimmask "0"            // use $phongexponenttexture Alpha Channel as mask
   $rimlightboost "2.1"    // multiply the rimlight by this value
   $rimlightexponent "1.1" // multiply the rimlight fresnel by this value

   $envmap "env_cubemap"        // choose the env_cubemap texture
   $envmaptint " [ .8 .8 .8 ] " // tune the intensity effect
   $envmapfresnel "1"           // fresnel is multiplied by this value
   $envmapcontrast ".8"         // color*color control

   $SelfIllum "0"

   $EmissiveBlendEnabled "0"
   $EmissiveBlendTexture "vgui/white"                // a BW image pattern (where should be emissive) (I8 format)
   $EmissiveBlendBaseTexture "shared/generic_red255" // our effect
   $EmissiveBlendFlowTexture "vgui/white"            // a RGB image vector
   $EmissiveBlendTint " [ .5 .5 .5 ] "
   $EmissiveBlendStrength ".6"
   $EmissiveBlendScrollVector " [ 0 0 ] "
}