Hello, The flickering problem was because I was seeing the video output on an interlaced monitor while the buffer was rendered progressively. This issue occurs every time you watch a progressively rendered movie on a CRT PAV/NTSC interlaced scanning monitor. To resolve this, adobe after affects supports field ordering while rendering and for DV PAL format the field order should be lower field first. I don't know where its supported in Motion or FCP but quicktime pro do not support this. Now as a next step I need to apply antialiasing to remove edges (not FSAA). Any ideas vade?
ThanksNisar To: From: dokt...@mac.com Date: Sat, 25 Dec 2010 11:01:51 -0500 CC: quartzcomposer-dev@lists.apple.com Subject: Re: exporting a composition to a quicktime movie Try frame blending? render at a few intervals around the target time for the frame, and average those together? I woudl also suggest using either texture readback or PBO based readback, both which can be asyncronous. That readback mechanism stalls GL and the CPU while waiting for glReadPixels to complete. Considering you are doing PAL, it may not be an issue, but just out of curiosity, are you certain that you are not actually dropping frames? Put in a patch time -> string with image -> billboard so you can have visual timecode stamps on the frames rendered and insure that the delta times between frames are constant? On Dec 25, 2010, at 10:45 AM, Nisar Ahmed wrote:Now either it is not possible with these card at all or there is some software level trick that I am missing in my code. _______________________________________________ Do not post admin requests to the list. They will be ignored. Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/quartzcomposer-dev/nisar_ak%40hotmail.com This email sent to nisar...@hotmail.com
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