Photorealistic 3D model of the Egyptian desert, vast golden sand dunes with wind ripples, scattered desert rocks and stones, dry cracked earth ground, sparse dead palm tree, clear blue sky, distant pyramids silhouette on the horizon, heat haze effect, game asset, optimized low poly mesh, PBR textures, seamless tileable terrain, 1000x1000 meter ground piece, high detail, realistic, for video game, no people, no animals