src/Shaders/Shaders_PBRCookTorrance_glsl.pxx

   1 // This file has been automatically generated from resource file src/Shaders/PBRCookTorrance.glsl
   2
   3 static const char Shaders_PBRCookTorrance_glsl[] =
   4   "//! Calculates Cook-Torrance BRDF.\n"
   5   "vec3 occPBRCookTorrance (in vec3  theView,\n"
   6   "                         in vec3  theLight,\n"
   7   "                         in vec3  theNormal,\n"
   8   "                         in vec3  theBaseColor,\n"
   9   "                         in float theMetallic,\n"
  10   "                         in float theRoughness,\n"
  11   "                         in float theIOR)\n"
  12   "{\n"
  13   "  vec3 aHalf = normalize (theView + theLight);\n"
  14   "  float aCosV = max(dot(theView, theNormal), 0.0);\n"
  15   "  float aCosL = max(dot(theLight, theNormal), 0.0);\n"
  16   "  float aCosH = max(dot(aHalf, theNormal), 0.0);\n"
  17   "  float aCosVH = max(dot(aHalf, theView), 0.0);\n"
  18   "  vec3 aCookTorrance = occPBRDistribution (aCosH, theRoughness)\n"
  19   "                     * occPBRGeometry     (aCosV, aCosL, theRoughness)\n"
  20   "                     * occPBRFresnel      (theBaseColor, theMetallic, theIOR, aCosVH);\n"
  21   "  aCookTorrance /= 4.0;\n"
  22   "  return aCookTorrance;\n"
  23   "}\n";