Chaos Corona for 3ds Max > [Max] Daily Builds
Caustics playground!
arqrenderz:
Maybe the Corona way to doing caustics is not the best one ? Otoy and nvidia got very good caustics examples, we struggle making caustics appear on very large scenes, having to detach geometry and merging into a new and smaller files just to get the caustics working.
Aram Avetisyan:
--- Quote from: arqrenderz on 2024-07-24, 16:07:13 ---Maybe the Corona way to doing caustics is not the best one ? Otoy and nvidia got very good caustics examples, we struggle making caustics appear on very large scenes, having to detach geometry and merging into a new and smaller files just to get the caustics working.
--- End quote ---
I haven't seen an actual archviz scene with caustics, like Corona, with others. Can you share some results, which are not simple refractive/reflective objects with caustics, and are not fakes?
marchik:
--- Quote from: alexyork on 2024-07-24, 09:47:53 ---Weighing in here briefly with some thoughts that I know I've already passed to the Corona devs over the years.
I kind of disagree that getting caustics to work reliably is almost impossible in complex scenes, that's maybe an overstatement - we're making it work regularly in very complex scenes - but I do totally support the sentiment - it's way, way too fiddly currently. And this is principally due to caustics having very basic optimisation/adaptivity in response to the scene - you often end up with poor looking noisy results and having to brute-force across the entire scene to get something decent, and almost always relying on some kind of post-processing fudging. This results in enormous wasted R&D time, rendering time and costs.
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Yes, by “reliably” I just meant no wasting time on R&D: you have experience and remember how to set everything up - you press a button and get the result that you imagined in your head.
At the moment, if I have a scene with caustics in my work, I budget at least an extra one or two working days just to get everything working properly and do test renders.
In general, this was not a complaint to the developers, I was quite resigned to the current state of affairs, but a little optimization would not have hurt.
alexyork:
Hey devs,
Are you able to share any insight into your plans for caustics on the roadmap, based on all the feedback you have from users over the last few years? It would be good to know what you're aiming for and testing out even if you can't give a time-frame.
alexyork:
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