PLAYING 2K in real time

[jayfxjay]

Hi just want to know if there ‘s a stable solution for playing 2k in real time
Have tried framecycler on a big workstation in RAID O but when using lut the real time fall.

Heard about pfplay but it seems to create proxys,

Any suggestions?

[paul_round]

Are you talking 2k 12bit, 10 bit cineons???

[jayfxjay]

Yes cineon 10bits 2048×1556
with lut display

[michael]

PFPlay can operate without importing footage into the vault, just depends what platform you want to use. It’s not possible on the MAc platofrm, but Linux (32 bit and 64 bit) and windows(depending on the hardware) can play DPX directly from the Raid array.

You can contact me or a pixel farm reseller directly and find out more.

If you need 12 bit playback, you’ll ned an Irix box as AFAIK they are still the only boxes that can do 12 bit (I’ve heard Nvidia are promising this but not just yet, could be wrong)

Best regards

Michael

[jayfxjay]

I’ve download PFPLAy on a windows xp workstation bi opteron, with Nvidia quadro fx 350 card 12 disk on RAID o Array 4GB ram.
Loaded Cineon in Pfplay but don’t have real time, idem with targa sequence.
Pfplay import the sequence in the vault and seems to create proxy.
Framecycler loaded the sequence directly and play it without problem.
But Pfplay seems better but don’t read the sequence directly.
Perhaps a format problem?

[Anonymous]

Hi,

In order to playback 2k (10bit log) in realtime with 3D Luts you need a graphics card such as the Quadro FX 3000 or higher, besides a storage that sustains at least 300MB/sec.

Click on the link below to read the Specs for Framecycler DDS 3.5

http://ddsweb.iridas.com/specs/index.html#Performance_and_Capabilities

Check with IRIDAS team for more info. and check with other vendors which graphics cards they recommend for their applications to sustain 2k realtime.

Most of them are using the QuadroFx GPUs not only for realtime playback but also for Realtime Color Grading, which is the case of Assimilate’s Scratch Review and Color Grading system. Scratch has an elegant interface with an interactive desktop including reels.

In the end of 2003 I built a workstations for a client who required playback of 2K 10bit log images in realtime with 3D Luts.

It’s a Boxx Workstations with Dual Xeon 3.0Ghz, Nvidia Quadro FX 3000, local U320 storage with approx. 300MB/sec throughput.

It was the best at the time and it’s working well until this day.

I guess that NVidia is working on supporting 16bit images.

The OpenEXR (16bit float / 32 bit float) format was developed by ILM to support with NVidia GPUs for 16 bit images.

Rgds,

Francisco

[loops]

Do you mean that nVIDIA might make cards with 16bit DACs? That would be interesting… they can already handle 16bit internally right up to the DAC, I think – certainly you can use 16bit floating point off-screen buffers.

I’m curious as to why you went with U320 storage instead of fibre channel – did you manage to get enough throughput from a single SCSI channel, with internal disks? Or was it something more substantial… I’m guessing it worked out cheaper than a dual-link 2 gig FC shelf…

[digitallysane]

As far as I know, Piranha from IFX does 16 bit floating point real time on Linux with a last generation nVidia card, and 2K playback with 3D LUTs.
http://www.ifx.com/piranha/4.2/

Dragos

[michael]

jayfxjay

You should be getting full playback performance with PFPlay on the system that you suggest, I can’t imagine what is going on. We just tested here and on an opteron system wiuth a geforce 6600 on PCI-Express we get over 30FPS playing back 10-bit 2K DPX files.

Can you perhaps contact me directly and send me some sample files from the sequence that you are trying to display? I’d be happy to arrange for someone to take a look at the issue for you. Windows was the last port we did after OSX and Linux, so something perfromance wise may have slipped through the net.

Best regards

Michael
Product Director
The Pixel Farm Ltd

[Timor]

i would suggest you check out clipster:
http://www.dvs.de/english/products/

i just saw it in action with 2 HD 10bit streams both with color correction in realtime. it´s capable of 4k RGB uncompressed.

very impressive and at a reasonable price (so they said 😉

timor

[Anonymous]

loops wrote:

I’m curious as to why you went with U320 storage instead of fibre channel – did you manage to get enough throughput from a single SCSI channel, with internal disks? Or was it something more substantial… I’m guessing it worked out cheaper than a dual-link 2 gig FC shelf…

Actually it’s Dual U320 card. At the time we build the system Boxx was getting better results with Dual 320 than with Fibre Channel plust the Dual 320 option was cheaper.

The array was configured with RAID 0.

Rgds,

Francisco

[Author]

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