4k tv technology help?

Raphael

what kind of graphics card would handle it easily or at all?

Answer
Such cards are available now, but they are very high-end and are designed to go in professional editing systems. Here, for example, is a 4K-capable video capture card with HDMI In and Out, able to handle 4:2:2 and even 4:4:4 formats, as well as 3D:

http://www.bhphotovideo.com/bnh/controller/home?O=&sku=892446&is=REG&Q=&A=details

You can probably imagine if the video card is nearly $1K the price for a rig to handle everything else (very fast parallel processing, very high-res monitor, very large/fast HDDs to handle vast amounts of data, etc), not to mention the software package - well, it's pretty top-of-the mountain type stuff.
Just a card for the display costs as much as a cheaper PC:

http://www.tigerdirect.com/applications/searchtools/item-details.asp?EdpNo=2313386&SRCCODE=WEBGOOPA&cm_mmc_o=mH4CjC7BBTkwCjCV1-CjCE&gclid=CI2N-I_6oLYCFY9DMgod5mcAJw

So, be assured, since people are already buying 4K cameras, and with TV and other manufacturers with $ in their eyes, 4K and 8K are coming. The only problem is, with the speed of technological change, just about anything you get now will be obsolete in a few years when things really start going...

converting pre-keyed 4k footage to 1080p / preserving alphachannel?

-.-

Hi,

i have 4K prekeyed greenscreen footage that someone shot for me but my pc is waaayyyy too shitty to handle this all especially with 2 or 3 video layers. i want to convert them to full HD so my craptop can handle it better but i doubt the alphachannel will be preserved if i convert it. can i convert it into the same foramt any other format but then smaller resolution and with alphachannel or will it be lost anyway?

Answer
Hi Chett:

It might help the discussion if you told us what file format (and not just "DCI 4K" or "4K UHD"; I need file extensions) your green-screen originals are in. And knowing what software (AfterEffects, Inferno, etc.) created the alpha layer & final file would help in finding a suitable transcoder or work-around.

But, even at 1080p (which is double the size of 1080i), most laptops struggle trying to handle HD video files of any type. Tell us what video/effects software packages you run (or try to run) on your laptop.

If you are serious about editing or compositing any HD digital effects footage, you need to invest in a decent multi-core CPU tower with serious RAM & fast hard drives to handle this properly.

Use the "Additional Details" link on the Action Bar's Edit menu to add more info, and we can help further.

hope this helps,
--Dennis C.
 

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