Hello, i'm trying to bake some hair cards from mesh strands. Following this video: https://www.youtube.com/watch?v=j1ACL6x3TO

I basically replicated the steps in this video but I feel painfully stupid however because perhaps I am missing something vital - I cannot get v-ray to render any alpha or normals using texture baking enabled. Currently running the newest versions of both v-ray and Ornatrix. (tried on a prev version of v-ray too) 

Thanks in advance - and sorry if this is a silly question!