{"id":254,"date":"2011-03-24T17:19:49","date_gmt":"2011-03-25T00:19:49","guid":{"rendered":"http:\/\/www.hd4pc.com\/techblog\/?p=254"},"modified":"2011-03-24T17:19:50","modified_gmt":"2011-03-25T00:19:50","slug":"stereoscopic-preview","status":"publish","type":"post","link":"https:\/\/www.hd4pc.com\/techblog\/2011\/03\/24\/stereoscopic-preview\/","title":{"rendered":"Options for Stereoscopic Preview"},"content":{"rendered":"

Viewing stereoscopic <\/a>media in\u00c2\u00a0realtime requires that the combined stream be transmitted to your display\u00c2\u00a0in some form.\u00c2\u00a0 Originally this was accomplished with two independent streams going to two separate output devices, like polarized projectors, or LCD monitors with a beam splitting mirror box.\u00c2\u00a0 Now with standalone 3D displays, usually the source streams have to be processed in some way to combine them.\u00c2\u00a0 Panasonic’s professional 3D display <\/a>accepts separate left and right SDI<\/a> streams, but most other monitors require the sources to be combined in some way, either spatially or temporally.\u00c2\u00a0 Passively polarized LCDs usually require a single stream with the left and right views interlaced together, which reduces the viewable resolution, but can be transmitted over regular SDI, DVI<\/a> or HDMI<\/a> connections.\u00c2\u00a0 120hz displays require left and right frames interleaved together, usually over HDMI 1.4<\/a>.\u00c2\u00a0 Standard 2D displays require anaglyphic<\/a> processing to combine the images, and color filtered glasses for the viewer to get a monochromatic preview of the depth illusion.
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\nLuckily there are a number of standalone products that can combine separate left and right source streams into a single usable muxed stereoscopic video stream.\u00c2\u00a0 Blackmagic’s<\/a> HDLink 3D <\/a>is one of the more affordable options, and is compatible with most display output options.\u00c2\u00a0 The development of these new converters allows many more flexible options for connecting 3D devices together.\u00c2\u00a0 Most realtime 3D\u00c2\u00a0monitoring of stereoscopic shooting will require a solution that can accept dual SDI streams, but with a simple conversion box, those sources can be run directly into an inexpensive consumer 3D display, with no other hardware required.<\/p>\n

In the edit bay, stereoscopic content can be output from a workstation in a number of forms.\u00c2\u00a0 AJA<\/a> and NVidia<\/a> can output separate SDI streams for each eye, using the same display interface that would be used onset.\u00c2\u00a0 Combining the left and right view into a single stream allows it to be played out a single\u00c2\u00a0SDI port or even standard DVI on a GPU to a passive 3D display.\u00c2\u00a0 Those specific options will depend\u00c2\u00a0on what software you are using, and\u00c2\u00a0need to match your display requirements.\u00c2\u00a0 Outputting 120hz from a dedicated HDMI 1.4 port requires a newer GPU and specific application support, but greatly simplifies the hardware setup.\u00c2\u00a0 I am sure there will be a whole variety of new options announced at NAB<\/a>\u00c2\u00a0next month, and as new hardware and software tools are developed, the preview options become cheaper to setup and\u00c2\u00a0easier to use.<\/p>\n","protected":false},"excerpt":{"rendered":"

Viewing stereoscopic media in\u00c2\u00a0realtime requires that the combined stream be transmitted to your display\u00c2\u00a0in some form.\u00c2\u00a0 Originally this was accomplished with two independent streams going to two separate output devices, like polarized projectors, or LCD monitors with a beam splitting mirror box.\u00c2\u00a0 Now with standalone 3D displays, usually the source streams have to be processed […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,17],"tags":[18,41,42],"_links":{"self":[{"href":"https:\/\/www.hd4pc.com\/techblog\/wp-json\/wp\/v2\/posts\/254"}],"collection":[{"href":"https:\/\/www.hd4pc.com\/techblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hd4pc.com\/techblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hd4pc.com\/techblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hd4pc.com\/techblog\/wp-json\/wp\/v2\/comments?post=254"}],"version-history":[{"count":7,"href":"https:\/\/www.hd4pc.com\/techblog\/wp-json\/wp\/v2\/posts\/254\/revisions"}],"predecessor-version":[{"id":266,"href":"https:\/\/www.hd4pc.com\/techblog\/wp-json\/wp\/v2\/posts\/254\/revisions\/266"}],"wp:attachment":[{"href":"https:\/\/www.hd4pc.com\/techblog\/wp-json\/wp\/v2\/media?parent=254"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hd4pc.com\/techblog\/wp-json\/wp\/v2\/categories?post=254"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hd4pc.com\/techblog\/wp-json\/wp\/v2\/tags?post=254"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}