If that doesn't work, please let me know. Alpha planes and "billboards" are discussed in the Vue 2016 Reference Manual.

Another technique, if you have an HDRI image is to use it in the atmosphere. This and "IBL lighting" and "image baking" are discussed on page 177 in my Vue 2016 Reference Manual. But my manual is out of date, I believe. Anyhow, you could search for these terms in your Reference Manual and experiment with those methods.