Vray materail ID, refraction and reflection all one colour

Hi,

I have vray or sketchup and am trying to use the vfb outputs to create several channels such as zdepth, refraction etc but when i do this it renders fine but the output channels are all a block of colour? see images below…

material ID

Refraction/Reflection

Render

Zdepth

You didn’t assigned colors to the model? What would you expect in the material ID and reflection output?