inferno & film work

[worldofmaya_vb]

Hi all!
I was asked to do some compositing with 30mm footage. I’ve only worked with DV and Beta footage before, so if there’re any help full thoughts/hints please let me know! Another question would be, if there are some system specs that at least should be full filled. I’m working on an Onyx2 based system with ir2. The system has only 1GB of RAM. This mostly worked for my needs on PAL projects but with higher resolution this perhaps could be a little bit too few.
thanks in advance, klaus

[sarbizaxnobsb]

Hi

i think Look up tables will be your big learning curve – log to lin etc etc – i think there was some good tutorials here at FXguide. Imnot sure what your format is but usually it is 35mm?? (im sure its a typo) 2K is the general norm for frame size. and i think your lack of ram might be an issue in slowness.
jh

[Anonymous]

jonhollis wrote:

i think Look up tables will be your big learning curve – log to lin etc etc – i think there was some good tutorials here at FXguide. Imnot sure what your format is but usually it is 35mm?? (im sure its a typo) 2K is the general norm for frame size. and i think your lack of ram might be an issue in slowness.
jh

Sorry, fingers were faster than my brain, you’re right about the format. If only slowness will be an issue, it’s okay. Perhaps using proxys will help a little?
The setup will not require anything complex. Hopefully I’ll get some test footage before the project starts. I found some hints here about log to lin, thanks for the tip! What I didn’t understand is, in what kind of color space your working. I’ve to integrate some CG stuff which will come as 16bit per channel Tiff. After log to lin conversion compositing should be as allways? Afterwards for output, converting it back is enough?
-klaus

[kingcoon]

you should definitly look into upgrading your memory. 1GB will be a major problem, i would say.
depending on your version you should upgrade to 2,5 GB (thats usually ok for 32 bit versions) or more when using the latest inferno 64bit version.

if you have to make log-lin-log conversion you should make tests prints, wedges of your material before sending everything to a laser. maybe you could work with a monitor lut only – but there are people in this forum who are way more experienced with this topic than I am.

hth
tom

[greek]

hi,

definitely you want to upgrade ram, actually it doesnt cost a fortune anymore;
not only because of speed, rather because it will just crash…
depending on version & size of the project you should work with 4 gig or more

re workflow its good to talk to all involved parties beforehand and define a workflow, exceptions will show up anyways 😉

scan > print tests (if possible) are the best way to avoid surprises

working in lin space is easier, as all the tools work in linear steps, so if the scans are log, include luts in the test series.
talk to the printing facility, what kind of data they want to receive (size, lin/log, filetype etc)

good luck

robert

[pixelmonk]

You need to sort out an in/out loop, you need to ensure that what you put out matches EXACTLY what comes in, (I’m assuming your shots will be cut in with original neg). LUT’s need to be sorted for getting your scans in (10bit log to 12bit lin), it’s also worthwhile getting a monitor LUT to simulate the look of the print that will eventually be made, we have all our LUT’s custom written in house. We also use LUTs for converting 16bit SGI (CG) to 12 bit. Check what is going on in your blacks, (but then you should be doing that already). You will definitely need more than 1G memory, 3 is usual but I have 4 in my Onyx2. Be prepared for looong renders, I try to work in proxy mode when possible, also things that you can ‘get away with’ for TV, won’t work on film, you will also have to be careful with grain management, keying also needs to be a lot more precise.
To sum up, it’s a helluva lot more work than TV!
Oh and good luck!!

Paul

[Anonymous]

paul_round wrote:

Oh and good luck!!

Thanks to all for your help. There seams to be a lot more to do than planned but sometimes you have to jump into cold water 🙂
-klaus

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