Iron Sky – Day 132
It’s Sunday so things are kind of casual here at the office. Luke, Samuli, Lee, Mark, Tuomas and I are here by ourselves as we just continue to truck through shots as quickly as we can. Our directorÂ wasn’t able to make it on Friday as he was sick, thing is we have all been sick – with the mysterious exception of Samuli… hmmmm…. It’s some kind of conspiracy I swear. 🙂
Regardless of near death experiences at the hands of whatever cold virus keeps mutating here in the office lots of work is getting done on several key shots. At this point of course everything is key.
This afternoon has also been filled with some speed test comparisons (along with quality) using LightWave’s Adaptive Sampling system vs. its regular non-adaptive sampling system. Traditionally people use adaptive sampling to speed up their renders while keeping the quality high, however in some situations including when working in a linear color work flow it can produce final image results that are undesirable to the trained eye and can even slow a render down while not improving the quality at all. On the flip side it can in some situations save your ass from renders that take a long time for comparable results. The big trick is to try and balance out settings for AA and AS and compensate with motion blur in camera (LW’s motion blur is kick ass by the way because it does more than just motion blur – it can actually help smooth out noise and other problems).
There are also areas where A.S. will if used correctly produce better results than not using AS at all. Specifically I’m talking about bright edges against total black, ie space. For images where you have long cables or some kind of fine lattice work of a ship for example that are fairly light, it can make those edges look a lot better than throwing a huge amount of AA at the same thing but without adaptive sampling on. As you can tell here in my post there is a bit of a damned if you do, damned if you don’t factor going on. Which option that we go with on a shot by shot basis is being determined by a few factors which I can’t get into because I would have to explain them all in detail and I can’t right now but ultimately what trumps A.S. is what it does in the gamma of the image, or what it doesn’t do. Because it doesn’t deal well with very dark areas when you turn up the gamma in compositing applications there will be areas that didn’t get any AA at all and that’s bad.
Either way, right now for several of the shots that I am responsible for A.S. is not giving us a speed and quality advantage at all. It’s just how it is.Hopefully in the future it will be easier to tweak the functions of the Anti-Aliasing system inside LightWave’s camera technology so that speed can be favored or quality can be favored but still keep things clamped for time that you have left on a shot.