Matt Browning
Forum Replies Created
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I’ve got the same problem. There have been a number of projects that I have to re-export/re-render as 8-bit to get rid of weird rendering issues. I notice the problem most in bright areas of the image. I’ve even had the case where I’ll apply Genarts Sapphire filters to limit the chroma snd luminance…Prior to rendering the results are legal, but after rendering I’m clipping at 110 on my scope. When I switch to 8-bit, the rendering matches the preview frame specifications. Since these filters render using the GPU, I am pretty certain that the issue is the GTX285.
The specs of the card are impressive, but the drivers are not mature. I’ll probably be replacing my GTX285 in the next couple of minutes. Anyone want a used GTX285 for a bargain? Haha.
The other rendering problem that I mostly see is that bright areas that should render as white render as black, like the white has burned through and there is no longer any data there for those pixels. I’ve seen this over a wide range of footage and formats from 1080, 720, and various SD codecs.
My FCP will also often crash when I open a project with a lot of h264 footage from Canon 5D that has not been transcoded. And who wants to transcode a boatload of footage the client has provided on a hard drive. Of course I’d convert on log & transfer if I was doing that bit…anyway I won’t elaborate on that gripe, but I did want to confirm the experience that you are having with the 285.
I didn’t shoot 1920×1080 AVCIntra 100 to then have to render the timeline at 8-bit. Next.
Anyone have thoughts on the new ATI cards with FCP?
Matt
Matt Browning
Ikonik Media, Inc.
Professional Blu-ray & DVD Authoring
http://www.ikonikmedia.com -
Yeah. I hate the animation codec, too. I’ve got a mov that plays every frame when played in QuickTime, but in FCP and AE it is missing frames. For me, even re-setting the frame rate to 23.976 does not fix the issue. This is a client provided file that I need to blend with another asset for a DVD menu. In other situations, when Animation Codec files have originated on a PC (I use a mac), I have had a strange temporal artifacting issue that looks like QuickTime is having problems translating I-frame info to the GOP. I’m not sure if Animation codec uses GOP, but that’s what the resulting issue is. For those, I have to simply use AE to re-export the file and all is well. So I’ve found Animation codec to be the buggiest codec still used. I wish there were more options for files with alpha channel.
Matt Browning
Ikonik Media, Inc.
Professional Blu-ray & DVD Authoring
http://www.ikonikmedia.com