I don’t know if this is discussed before I searched and didn’t find the topic between these two render engines
No doubt Vray is great production proven renderer and is very reliable and has a great performance and quality.
but recently I have seen this battle of “Biased vs Unbiased” and people trying these unbiased Physically based render engines, many who are Vray users for years may like them in first look because they have been looking at vray GI for years and sometimes it may feel boring to work with same setup. but not only that I have seen good GI details in CORONA and some other unbiased render engines but they are fast to setup as well with no tweaking of setting.
Vray recently introduced the the Progressive Path tracing algorithm in Vray (which is sort of unbiased feature). but I am not that impressed with it as compared to these unbiased renderers with no setup time.
Both Biased and unbiased techniques have there strength and weakness but do you guys think Vray needs to improve on this area? (not talking about RT here) or is there already a workaround this, I like the Vray dev team as they are the fastest to implement the new technologies. but I also like the corona and its dev team but they are very new, I have tried the Alpha V6 and is great.