Oct
09
dpx log + cgi for film
Posted in: NUKE from The FoundryHi i hope you guys can give me a hand with some issues im having with a project im running. Its the first time i work for film and i have my head spining in all directions with color spaces and formats…
Basicly the problem is that we are getting all sort of mistakes when giving in our material to the CC guy (they are doing it in Lustre) Our cgi seems to be not holding well against the dpx files and we havent been able to spot where the probelm is (production is doing the cc in other studio in other city so no chance of having the guy there to run tests)We are rendering all our 3d in Open exr linear, and matte paintings are being done in tiff 16 bits. from the tests we have run here the exr files can take the most extreme color corrections, and behave just fine when totally integrated with the dpx files.. but no matter how we give him the file he keeps saying that the blacks get gray and what not. There is something in the process we are not doing right, he has sent us some screen grabs of how he sees our material and it looks like if he had his lut in linear and a kodak vision filter…and obvioulsy he gets a really dark file… if i reproduce this in nuke… if i get the file in,turn of the viewer lut and put a truelight node with kodak vision or kodak vision premier i get a pretty close result to what he sends.. but then i can deal just fine with the color and i dont get any issues to get where we want to get… Now the question is..well in your experience what would be the correct workflow when dealing with film production… and if we have to integrate and treat our cgi with the truelight node to check how is he going to see it and then render without it… im totally lost at this point and it looks like we are doing everything by the book, but then every time i scratch a bit more there is something else to know.
Basicly the problem is that we are getting all sort of mistakes when giving in our material to the CC guy (they are doing it in Lustre) Our cgi seems to be not holding well against the dpx files and we havent been able to spot where the probelm is (production is doing the cc in other studio in other city so no chance of having the guy there to run tests)We are rendering all our 3d in Open exr linear, and matte paintings are being done in tiff 16 bits. from the tests we have run here the exr files can take the most extreme color corrections, and behave just fine when totally integrated with the dpx files.. but no matter how we give him the file he keeps saying that the blacks get gray and what not. There is something in the process we are not doing right, he has sent us some screen grabs of how he sees our material and it looks like if he had his lut in linear and a kodak vision filter…and obvioulsy he gets a really dark file… if i reproduce this in nuke… if i get the file in,turn of the viewer lut and put a truelight node with kodak vision or kodak vision premier i get a pretty close result to what he sends.. but then i can deal just fine with the color and i dont get any issues to get where we want to get… Now the question is..well in your experience what would be the correct workflow when dealing with film production… and if we have to integrate and treat our cgi with the truelight node to check how is he going to see it and then render without it… im totally lost at this point and it looks like we are doing everything by the book, but then every time i scratch a bit more there is something else to know.
help…
Thanks in advanced
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