materials in radiance

hi, all

there is a photo
that i took from a paticular environment. i wanna
use radiance to render it so that i can evaluate the fidelity of the
synthetic image compared with the photographs of the real scene.

i have already model those objects in MAYA, and export the obj file.
now, i use plastic material for the wood floor and dielectric for the plastic
cup,but it does not look very realistic.
so , which kind of material do u think is suitable for the floor and
the cup in my scene?


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