Rendering hair/fur

No.504518 ViewReplyOriginalReport
Could we have an objective thread about hair/fur rendering?

How does Disney achieve this level of realism and detail (pic related, upcoming Disney movie)? What software do they use?

Is it okay to fake hair/fur by using onion style texture planes to safe rendering time or is this an absolute no go now?
I find it hard to justify 5 hours of rendering with physically correct hair particle systems while the same render without any particle system fur in it would take 10minutes.