message: moving texture warning to debug output only
diff: #include "miniSG.h"
  #include "stb_image.h"
  +#include "ospray/common/OSPCommon.h"
  +
  #define STB_IMAGE_IMPLEMENTATION
  #include "stb_image.h"
  @@ -309,6 +311,7 @@ namespace ospray {
  pixels = stbi_load(fileName.str().c_str(),&width,&height,&n,0);
  if (n < 3) //TODO: it seems that grayscale bump maps with > 8 bit crash
  {
  + if (ospray::logLevel())
  std::cout << "WARNING: ignoring texture with < 3 channels. Turn on USE_IMAGEMAGICK to fully utilize this scenes textures\n";
  return tex;
  }
  