_bbq.vmt

VertexLitGeneric {
  // Purpose: Sample for BBQ that modify fresnel when the entity burn
  $PhongFresnelRanges " [ .0 .5 1 ] " // the default 3D vector that will be driven by the above values

  // This is just to store values
  $PhongFresnelRange_0 ".0" // Fresnel at front view (0º)
  $PhongFresnelRange_1 ".0" // Fresnel at 3/4 view (45º)
  $PhongFresnelRange_2 ".0" // fresnel at back view/rimlight (180º)
  $PhongFresnelRangeX ".0"
  $PhongFresnelRangeY ".0"
  $PhongFresnelRangeZ ".0"

  $BBQ ".0" // fetch BBQ every frame
  $BBQMult "1.01" // This scales BBQ Modulation

  Proxies {
    BBQLevel {
       resultVar $BBQ
    }
    Multiply {
       srcVar1 $BBQ
       srcVar2 $BBQMult
       resultVar $BBQ
    }

    // Split $phongfresnelranges vectors
    Clamp {
      min "$PhongFresnelRanges[0]"
      max "$PhongFresnelRanges[0]"
      srcVar1 $zero
      resultVar $PhongFresnelRangeX
    }
    Clamp {
      min "$PhongFresnelRanges[1]"
      max "$PhongFresnelRanges[1]"
      srcVar1 $zero
      resultVar $PhongFresnelRangeY
    }
    Clamp {
      min "$PhongFresnelRanges[2]"
      max "$PhongFresnelRanges[2]"
      srcVar1 $zero
      resultVar $PhongFresnelRangeZ
    }

    // store user defined $PhongFresnelRanges vectors and use at Proxie setup
    LessOrEqual {
      lessEqualVar $PhongFresnelRangeX
      greaterVar $PhongFresnelRange_0
      srcVar1 $PhongFresnelRange_0
      srcVar2 $zero
      resultVar $PhongFresnelRange_0
    }
    LessOrEqual {
      lessEqualVar $PhongFresnelRangeY
      greaterVar $PhongFresnelRange_1
      srcVar1 $PhongFresnelRange_1
      srcVar2 $zero
      resultVar $PhongFresnelRange_1
    }
    LessOrEqual {
      lessEqualVar $PhongFresnelRangeZ
      greaterVar $PhongFresnelRange_2
      srcVar1 $PhongFresnelRange_2
      srcVar2 $zero
      resultVar $PhongFresnelRange_2
    }

    // modulate $phongfresnelranges with BBQ
    Multiply {
      srcVar1 $PhongFresnelRange_0
      srcVar2 $BBQ
      resultVar "$PhongFresnelRanges[0]"
    }
    Multiply {
      srcVar1 $PhongFresnelRange_1
      srcVar2 $BBQ
      resultVar "$PhongFresnelRanges[1]"
    }
    Multiply {
      srcVar1 $PhongFresnelRange_2
      srcVar2 $BBQ
      resultVar "$PhongFresnelRanges[2]"
    }
  }
}