Fig. 1. BRDF physical model

Fig. 2. Cosine-space BRDF distribution on medium surface

Fig. 3. Rejection sampling model

Fig. 4. Flow chart of rejection sampling method

Fig. 5. Scattering simulation system

Fig. 6. Scattering energy distribution of Harvey simulation model，b₀=1.185×10^-2，L=3.10×10^-2，s=-1.9

Fig. 7. The UQI range of Harvey model simulation

Fig. 8. The UQI range of ABg model simulation

Fig. 9. The UQI range of ABg model simulation