After Effects not showing 32bpc

[ben_kidd]

Should I have access to full raw data on the timeline? so far I can only access full RAW dynamic range in the "interpret footage > more options" dialogue. Is that right?

When I adjust exposure on the timeline it just clips, I had imagine that I would have full RAW on the timeline?.

AE set to 32bpc and the working space is set to Rec709 all as per the video tutorials sticking on this forum

Could anybody shed some light on this please?

p.s this is really urgent so any help will be much appreciated

Thanks

 

[Stepan Kment]

AFX 32bit..

AFX 32bit..

well, from what I observed and read: R3D importer can output to 32bit float. That is, it maintains the precision, can export to linear gamma. But I also noticed somewhere it doesn't!! allow for overbright values, that is >1.0, which is a problem as anything You overexpose in R3D settings window gets clipped. So ensure You rather underexpose there and set the final exposure in AFX itself, where eg. levels allows to go above 1.0 and later You may fix with mild knee curve or really export overbright to DPX.

Raw... simply the camera outputs 12 bit precision. In 16bit integer composition mode, there always will be some remapping depending esp. on gamma, for instance, people claim 16bit linear TIFF is worse than 10bit log DPX for real world imagery. So go 32bit float, which is essentially an overkill - even 16bit float in EXR can store more human eye could ever see it is said. This way, you have available every single bit of precision as an source for Your work, which may save You from banding in gradients etc. That is what essentially RAW is - many bits of precision. It has also other side effects, but for Your work in AFX, the only one important is high bit depth I think.

The different problem is color management, I really can't tell what we see in R3D source settings window and ask elsewhere in this forum. The problem is that if You're fine with very limited srgb or Rec709 gamut, then OK, it'll work probably; if You aim for cinema, then srgb is a bad choice and problems appear everywhere different temp of white color, different gamma.

 

[ben_kidd]

Yeh, I found a couple of contradictory statements too?! Either way like you said under exposing in the importer works fine. Rec709 is giving me enough to work with. This is seems like quite an in depth subject which I feel is important to understand, what would be the best way to get to grips with workflows with colour space, are there some good books/papers on the subject?