Baking multiple objects onto the first object UV

Maya Batch.

If you did on lighting/shading>bake vray… works perfect as it can be made it by selecting object you want, but if you did on batch render, it does not work, maybe because you need to select an object?

I’m on Maya 2015 Vray 3.0.0.

I have the opportunity in the study up to 2016 and Vray Maya 3.1. Is there new features in this field that can improve this process?

Thanks for your attention Vlado.