A simple experiment: can Vue render hair from Poser’s Hair Room?
The test rug: the old Poser 6 Ben hair, which is a default Poser hair made with the hair-room. It’s shipped with Poser for ages.
It was loaded, test-rendered (fast!) and then saved as a Poser scene file…
Then the saved scene was loaded in Vue. It can indeed be rendered in Vue, with the Poser Hair Room running the back-end. The drawback is that even with a fairly simple ‘sunny’ atmosphere, it’s going to take a long long time to render, and it won’t look as good as a Poser Firefly render. This basic 1200px render took 31 minutes and I halted it half-way through. Ugh.
Conclusion: Even if you had a cunning plan to have Poser provide unusual hairiness (such as thatched roofs for your medieval structures rendered in Vue, for instance), it’s not viable. While Hair Room ‘grown’ strand hair is very quick in Poser, it definitely isn’t in Vue.
On the other hand, it’s better than the calamities currently being perpetrated with Blender’s Eevee under the name of “NPR”…