About getting the caustics over from Corona to vray like they are right now, how long do you figure would it take?
it’s probably not as easy at it sounds, right?
For me..we use both renders nowadays on half of projects:
Corona PROS
Lightmix - this is going to be caught up by vray by introduction of VFB 2 - its there right now as well but not as easy to use as in Corna
Caustics - new feature - simplicity of usage - Vrays implementation is aged and the result is somewhat tedious to finetune
Material preview - very predictable result
GI - cant get rid of the feeling the GI distribution is better in Corona - for me and our clients the difference is quite big, especially in complicated interiors.
Very good bump mapping
Denoiser - works much better and preserves details better
Corona CONS
Bad when it comes to setting some exclusions and condition in renders, materials, objects ..include this exclude that, etc - quite useless for complicated artistic tasks
AO map - very limited
Triplanar - very limited
DR - takes forever to start - i mean this is by far the worst con for us
CORONA FORUM
great and lively and helpful forum just as this one used to be!!!
----------
VRAY - still our render of choice we will be sticking with
I can see Vray being a lot more beneficcial accross our pipeline within forseeable future…we use Corona mainly because our clients do as well.
Vray PROS
A lot faster
Loads of options for artistic freedom
Compatibility and scalability
Loads of material nodes
Vray CONS
Some important features for us are are taking long time to develop, probably due to a fact that Vray covers loads of apps and the dev is not so concentrated on Max anymore. Fair enough though. Happy to wait 
Denoiser - unsure why but it kills more detail in textures than the on in Corona
Caustics - aged implementation - lets see what Update 2 brings
Generally VERY happy with the way Vray develops. Thanks!
VRAY FORUM
turning into a few mens show here - only few people share their stuff here - compared to Corona forum its almost as a joke …
the common explanation we usually get here is that people share their stuff elsewhere…i dont think so…look at corona forum gallery…
Activity of Mr. Emanuelle Lecchi (hopefully spelled right, sorry if not))
is something i cant believe is allowed by Chaosgroups official. Insultions, laughing at people, ashaming…terrible…i have counts of proof in my PM and my email and social chats that i am not alone who thinks this.
The trouble stirrer - as he loves to call himself - is a reason i stopped posting more…and so the people i am in contact with.
Since when it became “a mission”??? for Chaosgroup to make fun of and put clients to shame through this guys unwitty and totally unappropriate comments is beyond my understading.
I ve been told by one of my colleagues whos active on Corona Forum, that he starting doing similar stuff there…dont know…i am just sad this happens…
Obviously Lele is very clever and his expertise is sometimes very valuable but the way he treats people is a disgrace to this forum.
Do you need a petition or a poll to do something about it at last ???
I for my self see Lele as a (little too) honest person which is sometimes a little hard to accept.
He says what he thinks. No matter if one likes it or not. For me, this is something I can enjoy, though I know some people are having trouble not to take it too personal.
And he is damn helpful! Without him I wouldn’t know half of what I know about the inner works of Vray. Other officials answer waay less precise than him.
That’s been said, I think this thread should stay at technical differences between corona and vray. Maybe you should start a dedicated Lele bashing thread.
I agree with all what PixelBox said. Corona has some better things like GI (or lighting). Dont know why but looks more pleasant for the eyes in some cases. Other thing is better texture AA, bump mapping and I think in latest version better displacement. And one more thing - much faster implementation of features. Corona after few months released new adaptive sampling, after that new fog, support for PhoenixFD and other volumetrics, now its new caustics. And VRay? We still looking forward for adaptive dome in nonbeta stage and lightmix for how long, 4 years? But so many years for one feature is really terrible. And I dont mention a bug with bump VRay has for 10 years maybe.
On other hand VRay has so many options we are used to, this is why we love VRay. But slow implementation of features ruining great feeling around VRay. And dont understand me wrong, some features are great, I am really looking forward for SP2 now.
And VRay forum? Its not like its used to. LeLe making fools from everybody insted of helping. Vlado helps, but cant helping whole forum on his own. And I had more problems in CPU and GPU and after first reply, thread was gone forever. Now its even impossible to find them on forum.
And one more thing - UVW randomizer map can be very helpfull, corona has it. I was hoping VRay add this too. I know there are plenty of scripts, but they are really terrible when you tried to use them in workflow in daily basis.
Thanks for the comments so far! I would only like to point out that the GI distribution in V-Ray and Corona is exactly the same. If you have examples of the opposite, I would be very interested to see them
Best regards,
Vlado
**********
**********
That’d be way too flattering.
I thank you for spotting my attempts at straightness, and i understand i can be (or perceived as, which is tantamount to the same thing.) abrasive at times, but beyond that, it’s really not an occupation of mine to give a hard time to anyone.
Back on topic now, please!
Ohhh, sticky it!
Although in all seriousness, if you see the value of the official forum as one of the reasons why you gravitate towards one renderer or the other then I think it is on topic, actually. ‘Why do you use VRay and/or Corona’ might come down to ability to reliably get helpful (non-abrasive) support on the forum. Not saying that this tangent of conversation should continue, but I don’t think these opinions should be discounted with an ‘off topic!’ either.
Indeed, the Chaos forums are nigh legendary, i meant “on topic” as in away from me, and towards everyone else which makes this place so positive. 
**********
One last thing about forum.
Here I found one problem with only one reply from Martin Minev - https://forums.chaosgroup.com/forum/…-disappear-bug He admits its a bug. But after that no reply or anything. No one said we are working on it or anything. Problem was with VRayLight, so I think its pretty important.
Second one I found on email was thread with ticket 128-245-600. It was still on Next Beta forums, so I cant access that now. Its ok, I understand that. But no one let me know if its fixed or how the progress going or what.
And third one here: https://forums.chaosgroup.com/forum/…y-multisub-tex
I don’t blame anyone or anything. It’s just things, why I stopped use forum so much like I was used to. 
All 3 things are logged. The MultiSub request is planned for the next major version, the one with the displacement is in progress and I will bump up the caustics one.
Ok, but I don’t have answer for a year or so. This is not good, it’s really long time. Even for fix some of that, don’t mention about replying, so I dont know how is it going.
Jesus Christ, what a bunch of cry babies. I’ve requested or reported some stuff too, didn’t always got an answer. Go on with your life and find a different solution. Chaos is one of the software companies that I know of, that listen a lot to user input and suggestions (luckily, that’s part of their succes). I’d rather have them fixing stuff and implementing new things than going around burning their cash hiring employees to try and answer every thread and ticket. I take it you’re still using 3Ds Max? How’s it going trying to get stuff fixed there? I rest my case.
‘At least it’s not as bad as Autodesk.’ Sweet.
Proceeds to beat a dead horse: I genuinely think a roadmap and a (public) bug tracker would ease a lot of these frustrations and leave users feeling less in the dark. You’d also see fewer redundant forum posts about ‘when is this feature coming?’ which would be a nice perk for CG. I bet you’d actually SAVE employee time because you wouldn’t be answering emails and posts asking the same questions again and again.
Even if it’s frustrating to see your favorite feature get pushed to a later stage on the Corona roadmap, at least you know and can gameplan around it if it’s an important feature for your workflow.
Not a complaint, I know you all are working super hard. Just a suggestion\comparison between the two softwares since that’s what this thread is about. I, personally, would be so stoked if you had a Trello roadmap for Next…*gets shivers*
I dont want to yet another person who derails this thead from its original purpose, but just wanted to mention Chaos also has a phone number. They helped me a few times via phone when it was urgent. Really much appreciated!
I think this was not necessary! I found a different solutions of course and i dont care if I get answer every time. I just said what can be better. But I dont think I need to explain how I mean it, someone alsays understand it wrong to say something stupid, right?