They are all based on the same general physic laws, but use different algorithms to converge to a solution.
Some gives you more control over the shortcuts they use to get a life-like result, some less.
Some have a lot of options to work differently than nature like different background than environment, control over transparency and alpha, reflections, refractions, caustics…
The more you can customize, the more it can be complicated.
i can remember VRay being the big thing everybody wanting to learn. fast and high quality. are the renders from keyshot faster than vray besides the quick set up and is the quality on par? i never used any special render stuff always tried to squeeze the stuff out of the basics thats why i tried myself on the rhino render here, but for my needs (not a jewelry designer) that always was sufficient. actually i use C4D for my renders, not fast but very good quality with a lot of options.
My impression is that this isn’t true. Some engines produce a greyish ambient occlusion looks. Most I see it at Keyshot and Brazil renderins. Vray based on the LC calculation creates a nice full GI look, same for Maxwell and Octane. For product shot animations I use Octane, since I can use the direct light mode and so it’s fast. The look is quite perfect. But for interiors it’s to slow for me.
General Vray is a great allrounder, good for anything. I use it all days, most for interiors.
For jewelry rendering HDR light studio is a great tool. It’s a must for high end jewelry rendering, since you have a perfect control over the reflections at metals.
I’m not a friend of the bad incarnation of Vray at VfR3, but I hope the next release will change it. Last I tested the progressive GPU rendering together with the denoiser I was impressed by the speed. So, one of the combination I would test if I would be you is Vray+HDRlightstudio in RT mode. I’m not sure about Octane and HDRlightstudio, but could be worth test too.
As a jewelry designer I did the same thing and looked at many of the render software out there. I also do far more than Jewelry. This said I went with Brazil as I felt it was the best for me.
I have been using it for about four years and love the results I get.
The 2nd law of client-dynamics reads: What is good and convincing is always in the eye of the beholder : )
I mean, regarding rendering, there are quality company clients that’d rather see at a high-end manual sketch/rendering, because it’s more “designey”, more “artisanal”, more “creative”; which means that of course one does the 3D model but then unpacks one’s watercolours AFTER the fact.
@Lagom I do that for all my retail customers with my jewellery. The first reason is for that artisan feel you mention above and the second is I find renders especially with jewellery promise a finish, colours, perfectly cut and calibrated gems that very often are not achievable.
As the person who has to actually make what I design, source the gems etc… I prefer to under pomise and over deliver. I screen shot from Rhino and batch photoshop them to a sketch with a script.
The render engine himself is nor really important , you can do excellent job in all.
In my opinion, it’s more essential to know how create a good ligthing setup , and how materials should behave with.
If you are beginner, Keyshot is surely the more easy to learn/use, for good results .
For lighting, as mentionned by @Lagom , HDR studio light is a must have, there is a similar tool ( more simple ) include in Keyshot.
If you plan to work only on picture, have an excellent knowledge in Photoshop ( or similar ) is also required.
Very quick render with cycles from V6BETA,
Just skylight and gemstudio as environment intensity set to 1.6,
placed on surface so light from bottom is blocked from gemstudio hdri.
Lighting seems much easier and nicer now.
Probably look better if the ring was not just pipe with filletedges…
Recommended GPU GTX1060 or above as you can’t do much while it’s rendering and also for live viewport.