When I use the refraction node in Poser 8 on a material the diffuse and transparency channels no longer seem to work. I take my water mesh and in the Materials room I use the default reflection and refraction set-up wacros but then I can't return some opacity to the mesh. Can someone explain what is going on and how to reduce the transparency and add a diffuse color? I am trying to create some what murky pond/lake water. Thank you.