Reflection examples. In the following scenes a cone is placed between two parallel boxes. The boxes' material is a V-Ray reflection map.

 

Glossiness-10000, Subdivs-2
Glossiness-10000, Subdivs-6
Glossiness-1000, Subdivs-5
Glossiness-100, Subdivs-5
Glossy-off, Max depth-1
Glossy-off, Max depth-5

 

For examples on translucency look at the VRayMtl examples.