It's not possible. As the way they warp / maps the highlights etc is super hard (to me impossible) to mimic with tools for contrast/gain/curves,hue/tint etc that we got in RCXP. If you apply it to an image and start playing with contrast and such under the lut you will understand, As they fall off to white very different that regular color grading. Same goes for the mid tones that is spread out in a way that increase the detail in skins and skys etc.
Today I used the fuji3510log2hd_CUSPclip all day when posting this little commercial in flame. All done in Full 5kANA r3d's straight into the Flame batch timeline, balanced the r3d in the RED parameters, then a logexpo node, a few selective color grade nodes and then the fuji lut... Viola, Client is stunned, super happy and can not stay in his seat when we start to push the colors around... his jaw goes down even lower when I show him the actual resolution of his spot. Finalizing web stuff in 3296x1350 felt quite far away not to long ago.... but now, not so much.
Here is link to a little HD file: http://www.syndicate.se/Files/~usr/skavsjoholm/SKAVSJOHOLM_1920X800_20130122.mov
The Vimeo 3k stuff is on it's way trough the wire, can not wait to click it
Also some of the shots (the candle light stuff) was shot at 4000iso, after I left the set, the director told me about it and I was frankly quite worried... but as it turned out, after sampling down to 3296x1350, the stuff just had ha pleasant grain look to it. Does not show on the compressed file, but uncompressed it just looks like... film to me, so we just matched the noise onto the other shots.
Try playing with the contrast on the grain layer.
Yes, and scale.
Jim - The performance hit from these LUTs sounds interesting. I've got the same setup as you except with no rocket and a GTX 285 instead of the Quadro. I usually grade at 720p with a 1/4 debayer and I don't really notice any difference in performance with the LUTs on or off. But I've always assumed there was a small performance hit. It must be more pronounced at higher resolutions.
Any extra noise you are seeing is just that. There is no grain simulation going on. I haven't really noticed the LUTs add more noise, but it seems plausible that they're amplifying and noise that is already present, since these LUTs are altering the density and transforming the colours. Do this with a node and it will very likely do the same thing.
Christopher - for stills I just use the Add Noise filter in photoshop on a gray layer and then set that layer to overlay. I play around with scaling and blurring the noise, so that its more like grain and less like 1 pixel noise. Then by double clicking the layer and bringing up the Layer Style settings I play around with the Underlying Layer settings so that more grain is added to the shadows and slowly fades out the brighter the image gets. Which is the key to making it look realistic.
I generally don't add grain to video if it's ending up on the web since it rarely survives the compression step. But if I do, it's possible to do something similar to the above using After Effects.
I reckon I'll eventually buy FilmConvert since that seems to do very realistic grain. It actually uses scanned grain and has a very realistic way of applying it to the image - applying more to the shadows etc, much like what I try to do using photoshop.
