// Define som constant material colors for use with opengl glMaterialfv
namespace igl
{
  const float GOLD_AMBIENT[4] =   {  51.0/255.0, 43.0/255.0,33.3/255.0,1.0f };
  const float GOLD_DIFFUSE[4] =   { 255.0/255.0,228.0/255.0,58.0/255.0,1.0f };
  const float GOLD_SPECULAR[4] =  { 255.0/255.0,235.0/255.0,80.0/255.0,1.0f };
  const float SILVER_AMBIENT[4] = { 0.2f, 0.2f, 0.2f, 1.0f };
  const float SILVER_DIFFUSE[4] = { 1.0f, 1.0f, 1.0f, 1.0f };
  const float SILVER_SPECULAR[4] = { 1.0f, 1.0f, 1.0f, 1.0f };
  // Blue/Cyan more similar to Jovan Popovic's blue than to Mario Botsch's blue
  const float CYAN_AMBIENT[4] =   {  59.0/255.0, 68.0/255.0,255.0/255.0,1.0f };
  const float CYAN_DIFFUSE[4] =   {  94.0/255.0,185.0/255.0,238.0/255.0,1.0f };
  const float CYAN_SPECULAR[4] =   { 163.0/255.0,221.0/255.0,255.0/255.0,1.0f };
}