devIL usage by jeickmann

1

float * Geoclipmap::loadHeights(const string &filename) {     ILuint imageName = 0;     ilGenImages(1, &imageName);          ilBindImage(imageName);     if(!ilLoadImage((ILstring) filename.c_str()))     {         cout << "Error loading image " << filename << endl;         return 0;     }     heightmapsize = ilGetInteger(IL_IMAGE_WIDTH);     float * heights = new float[heightmapsize*heightmapsize];     ilCopyPixels(0, 0, 0, heightmapsize, heightmapsize, 1, IL_LUMINANCE, IL_FLOAT, heights);     ilDeleteImages(1, &imageName);     return heights; }