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Author Topic: HFR in 2013 Marcel Birgelen Film God Posts: 3357 From: Maastricht, Limburg, Netherlands Registered: Feb 2012 posted 12-19-2013 04:18 AM                     I've never noticed any flicker with any of the currently common 3D systems, as long as they're calibrated correctly. And I'm quite sensitive to that, for me, looking at an old-school 50 or 60Hz CRT tube is a rather eye-straining experience. The only system that I'm able to discover some strobing effects on, is the active XPand3D system in combination with for example, a cellphone with CCFL backlights. I guess that's because of interference with the backlight frequency. The flash rate of all those systems should also be well beyond the flicker fusion threshold. All DLP systems actually depend on some slight degree of vision persistence, since every pixel on screen is just a tiny mirror, vibrating between "on and off" at high frequency to produce the desired level of light for that pixel. Sony's LCoS based SRXD might be the notable exception here, as it uses mirrors coated with an LCD layer. Whether or not the flash rate of the "alternating image 3D" systems really introduce some noticeable artifacts that are subconsciously still being picked up is something that's probably hard to prove without some profound research. I've seen (bits of) last year's Hobbit in HFR in both "alternating image 3D" and in "always on 3D" and the look, at least for me, was essentially the same.  |  IP: Logged Carsten Kurz Film God Posts: 4340 From: Cologne, NRW, Germany Registered: Aug 2009 posted 12-19-2013 06:45 AM                     Yes, the Sony 3D system obviously has some benefit, but I think only a minority of people will apprectiate it. Most people have no problem with flashing from 120- 144Hz onwards. Some systems can not perform double flashing with HFR, e.g. Masterimage. That's another story, as this could bring the flashing down again to 96 or 120Hz. - Carsten  |  IP: Logged Marcel Birgelen Film God Posts: 3357 From: Maastricht, Limburg, Netherlands Registered: Feb 2012 posted 12-21-2013 07:27 PM                     I've stumbled upon a recent "remake" of Big Buck Bunny, an animated short, released in 2008. Originally, it was in 2D and 24 FPS. It was entirely created using Blender, which is a popular open source 3D modelling, animation and rendering software. They remade it in Stereoscopic 3D, 4K and 60 FPS, so way beyond what's even feasible with DCI installations right now. I've downloaded it, but the notebook I've tried it on, was nowhere near capable of handling it, even the Full-HD version 2D version at 60 FPS had issues. I will give it a shot at a beefier workstation another time, although 4K and 3D will have to wait a bit longer . This is just an animated movie, so it doesn't really compare to live action in 60 FPS, but it gives a nice first impression of what to expect from HFR in 60 fps in the future.  |  IP: Logged

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