Abstract: Realistic simulation of the lighting effects of water body is an important research in computer graphics.Previous studies emphasized on simulation of the lighting effects of the clear water, which could not be used directly for turbid water.This paper proposed a physically based method for realistic simulation of the lighting effects of turbid water.First, the water body is modeled by considering the optical properties of different materials in turbid water, and established their absorption and scattering model, respectively.Then, according to the spread of light in the turbid water and its interactions with the particles of different materials, the attenuation of light changes were calculated, and converted it to RGB color system for photorealistic rendering.With a powerful GPU parallel processing capability, the method can achieve real-time rendering for different types of turbid water.Various experiment results validate this method.