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Is Corona Renderer flawless?
show user profile  Nanne
I've have yet to hear anything bad about Corona, it's that it? Is it flawless? The best rendering solution there ever was? Should V-Ray, mental ray and iray close their doors and go home? :P

It seems rather simple to use, pretty straight forward and intuitive UI. There's a video on YouTube where it renders 5 500 000 000 000 instanced polygons, that's pretty impressive I have to say!

Does anyone here have any experience with Corona and is there something you are less satisfied with? Any bugs? Missing features? Glitches? Does it handle volumetric lights, environment fog, dispersion in refractions? Does it render slow in some circumstances?

I'm very curious, but don't have time to fiddle with it myself. So what's your experience with Corona? :)

Kristoffer Helander
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read 1612 times
1/4/2015 10:47:55 PM (last edit: 1/4/2015 10:47:55 PM)
show user profile  Error404
if you don't have time to fiddle with it, does it matter? :) -

read 1607 times
1/4/2015 11:03:47 PM (last edit: 1/4/2015 11:03:47 PM)
show user profile  Nik Clark
I've been using it for the last year. It's not perfect, but it's probably my favourite renderer.

I'd like to see changes in the Corona material. I'd like to see some post processing effects added. For the product renders I do, it's pretty much ideal. It plays nicely too, and doesn't paralyse your machine when rendering.

Renders can take a long time, even though you get a good idea pretty much immediately of how the final render will look. For the niche it's carved, it's pretty ideal. People compare it to Vray a lot, but I don't think it's a direct competitor at all.

The interactive rendering is amazing, and unlike iRay, it's not under Autodesk's shitty development wing.

read 1606 times
1/4/2015 11:09:31 PM (last edit: 1/4/2015 11:14:10 PM)
show user profile  Nanne
@Error: Of course it matters, it's always nice to know :)

@Nik: Thanks for your input. Yes the integration of iray in Max is very disappointing and is lagging behind, I hope they speed up development soon :)

Are the default render settings often usefull or does it require a lot of tweeking to tune in the quality without getting too long render times?

Kristoffer Helander
  :: Works ::   |  :: Resumé ::   |  :: Contact ::   |  :: CG Blog ::   |  :: Links ::     
read 1566 times
1/5/2015 11:05:23 AM (last edit: 1/5/2015 11:05:23 AM)
show user profile  STRAT
That young man used to be a great Brazil RS advocate. Ah, those naive days :)



read 1560 times
1/5/2015 11:41:02 AM (last edit: 1/5/2015 11:41:02 AM)
show user profile  BishBashRoss
I agree with Nik. It's a great renderer but it is very much geared towards the arch-vis, product renders market. It's very much a trade off of simplicity and flexibility and I can see Vray remaining the most popular of the two for most studios, particularly those dealing mostly with animation.

The default settings are fine with most arch/product type scenes. For 90% of the work I've used it for all I've had to do is add materials, lights and hit render. I have had issues with scenes with multiple small light sources taking a long time to clean up.

Something to consider when looking at the videos and something that Nik mentions also. Path tracing produces OK renders very quickly but takes much, much longer to get clean noise free images.

read 1556 times
1/5/2015 12:00:12 PM (last edit: 1/5/2015 12:00:12 PM)
show user profile  Nik Clark
For stills, the few setting presets are pretty much perfect. For animations, it can take a bit more work.

It also depends on your materials and lighting used. If you are using, for example, a translucent material that is illuminated by bounced light, you get noise that will take some time to fully smooth out. However, if your material is just some shiny surfaces, with direct light, your render will be really fast. It's the same for all unbiased renderers.

It is capable of some impressive feats. I've rendered a scene with many billions of polygons, and the setup time was still seconds.

I've used it for quite a bit of still imagery, however I have not used it for animations, as I've had less luck with the settings and animations. I've had a lot of GI flicker It's probably easy to solve, but my time is limited for playing about with animations.

Example of GI flicker I never bothered to figure out and fix.

Corona walkaround - flashing issue from Nik Clark on Vimeo.

read 1553 times
1/5/2015 12:19:15 PM (last edit: 1/5/2015 12:19:15 PM)
show user profile  Coxy
Its very good, especially as it's been free for a long time, but if I had to pay for Corona, or Vray, I'd personally go for VRay.

One of the downsides I found is that it becomes incredibly slow when using any kind of blend map/materials, or at least it was at the time I used it and they are pretty critical!
read 1491 times
1/7/2015 1:35:54 AM (last edit: 1/7/2015 1:36:17 AM)
show user profile  luxxeon
When it gets SSS, and/or a good way to reproduce multi layer skin material, then it will be damn near perfect. It's definitely the most impressive engine I've used since the early days of Vray.

My Youtube Video Tutorials:
read 1487 times
1/7/2015 2:14:10 AM (last edit: 1/7/2015 2:14:10 AM)
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