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major problems with keylight/pref settings in cs3 on mac pro
I’m running CS3 AE on a mac pro (octo). I’ve downloaded the latest updates to keylight (1.6). The footage was shot on greenscreen by a panasonic HVX camera. It imports into AE as 960×720. I changed the comp settings to square pixels as I am making premultiplied keyed videos for a flash website. i am working with a white background color in ae because the final web background will be close to white.
Before I downloaded the new updates of keylight, there would be severe color shifts and aliasing when previewing or rendering. I’ve gotten rid of that problem…for the most part. Came back briefly…and it may have to do with my prefs cuz when I tossed them the problem went away again. But now, no matter what I try, my quicktimes render as if they were straight alphas. Instead of playing back with a white bckground I just have the white showing up almost as a stroke around the person. It re-imports into AE as premultiplied and seems to work fine for the most part, but these are going to a web company. Also, the white background shows up noisy and also on the edges of the mask that I drew around the subject.
Not to mention, when I try to render all my videos in the render que, after about 3 renders, all the other ones fail because “keylight is out of memory”.
Any thoughts or suggestions?
Also, if anyone can send me a recommended prefs setting file for my configuration, that would be greatly appreciated.
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5 Replies
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Try turning your BG to black before render. i have seen AE pickup some color from the BG in alpha renders since AE 4 or 5.
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well I want it to pick up the white because it’s premultiplied and will be composited on the web over a white or light background. However, on my G5 system with AE 7 and previous, my rendered quicktimes would always show the whole background as white, just as it was in AE. Now it looks like a straight alpha (although it is not) and it has noisy white on the bottom of the frame and along the garbage mask edges and a white outline around the subject (although the inside of this is clean against the subject) and the rest is black.
I have my render settings set the same as always. But could this have something to do with these color management settings in the render que?
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I’d still switch the BG to black, right before you render and see if it does you any good.
Sorry, AE CS3 is in the mail, so I haven’t installed it yet.
Any chance you can post a still of what it looks like?
Jeremy
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the colour management may be to blame, damned if it can get it to leave anything alone.
try just rendering out (no filter) and see if it messes with the gamma/colour. When I do this and compare before and after quictimes the difference is rather large.not happy
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That probably has to do with the shift in color space from YUV to RGB.
What codec are you starting from and what codec are you rendering to? ALso, you can’t judge a Quicktime on a computer monitor as Quicktime makes huge assumptions about the video you watch on a computer monitor and makes all kinds of assumptions for you that you might not want. Judge the quality/color only from a production monitor played through a qualified capture card.
Jeremy
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