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Text File  |  2004-01-06  |  911 b   |  30 lines
  1.       #include "../CGVPMacro.csi"
  2.  
  3.       MainInput { uniform sampler2D baseMap : texunit0,
  4.                   uniform sampler2D bumpMap : texunit1,
  5.                     uniform float4 Specular }
  6.       DeclarationsScript
  7.       {
  8.         OUT_T0_T1_C0
  9.         FOUT
  10.       }
  11.       CoreScript
  12.       {
  13.         // load the decal
  14.         float4 decalColor = tex2D(baseMap, IN.Tex0.xy);
  15.         // load the bump normal
  16.         float4 bumpNormal = 2*(tex2D(bumpMap, IN.Tex1.xy)-0.5);
  17.  
  18.         // Half vector from input color
  19.         float3 hVec = 2 * (IN.Color.xyz - 0.5);
  20.         float NdotH = saturate(dot(hVec, bumpNormal.xyz));
  21.         float  specVal = saturate((NdotH - 0.75)*4);
  22.         specVal = specVal * specVal;
  23.         float3 spec = (specVal * Specular)*2;
  24.  
  25.         // finally add them all together
  26.         OUT.Color.xyz = spec;
  27.         OUT.Color.w = Specular.w * decalColor.w;
  28.       }
  29.  
  30.