I'm trying to render a partially transparent greenhouse plastic cover with Yafaray, and I wonder if someone knows some basic values for the parameters of a shiny diffuse material.

I have modified SweetHome3D source code as well as PhotoVideoRendering plugin, in order to use a material type of "shiny diffuse", instead of "glass", when indicated in a .mtl file of a transparent .obj 3D model.

So I have to set a lot of parameters:
- IOR
- color
- specular_reflect
- mirror_color
- transparency
- translucency
- filter_color
- transmit_filter
- diffuse_color
- diffuse_reflect

Rendering "shiny diffuse" materials is very slow. I did some experiments, but I got very bad results.

So, if someone knows some basic values for these parameters, that I could use as base to do my rendering experiments for a partially transparent greenhouse plastic cover ?