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10 bit and 8 bit problems in After Effects
For a while, I’ve noticed that when rendering from after effects, 8 bit and 10 bit (apple’s codec) renders show up a little lighter than when I just render lossless animation. I assumed this was just the conversion to YUV. Just out of curiousity… i brought one of my 10bit renders back into ae and rendered again 10bit… it was even lighter… and again… lighter. Hmmmm. So I thought the codec might be doing that to compensate for the the conversion. One way to test the codec, is do it in QT. So I exported the 10 bit from quicktime, as a 10bit movie. No change in lightness. So something in the AE render is processing the 8 and 10bit files incorrectly.
I tried this on ae 6.5 and 7. Same problem. I’m running a quad g5 with os 10.4.8.
Has anyone else experienced this problem? Any thoughts? -
2 Replies
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Are you assigning proper color profiles/ footage interpretation when importing the footage? AE always assumes full RGB ranges. I would also suspect that there is a setting in the CoDec that can prevent this from happening. Checking in QT is not doing any good. It always uses direct stream conversion in the native color space, so comparing it to AE is a classical apples and oranges example.
Mylenium
[Pour Myl
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I’ve never assigned color profiles in after effects. How is it possible to do that? The apple uncompressed 10bit codec doesnt have any color related options when i set the render… and in terms of color depth.. only millions is selectable. Checking in quicktime was only a way of isolating the problem to after effects, not a comparison tool. Thanks for the prompt response 🙂
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