gigantic dinosaur, Giganotosaurus, aggressive posture, sharp teeth, scaly skin, dark brown texture, massive legs, long tail, roaming, Ark: Survival Evolved, Ragnarok map, volcanic area, rocky terrain, sparse vegetation, near water sources, daytime, natural light, wide-angle shot, dynamic composition, realistic rendering, high-resolution textures, survival game environment, immersive atmosphere, distant mountains, clear sky, ambient occlusion.