Hey guys,
Recently tried v-ray 4.20 and although it still isn't any faster on production rendering than Corona (I'm getting Corona being around 70-100% faster), their approach to IPR/IR seems to be more "fluid" than Corona. Can't quite put my finger on it but I suspect the following:
1) Initial image feedback seems faster, even if it is more "degrading" initially. I quite like that approach. Is it possible to replicate it for Corona?
2) Window resolution is much more flexible, allowing us to set any window size we like. I'm aware this has been an onward discussion for a long time but this combined with a faster visual response would GREATLY improve usability IMHO.
3) Being able to make several render regions without having to press SHIFT also seems to be more user-friendly in giving that impression of a fast response.
Don't get me wrong, Corona IR is very fast once everything is computed. It's just that initial response when V-Ray IPR gives you a degraded image almost instantly when Corona IR stays black initially for a couple of seconds.
Also, apart from all the IR suggestions, when making a render region in production is "Computing GI" necessary to be processed for the whole image? I remember a Corona team member responding about this issue and saying there was no way around this. I think V-Ray works without having to process all image data when region rendering although I'm not quite sure about that.