site_archiver@lists.apple.com Delivered-To: pro-apps-dev@lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:from:to :content-type:content-transfer-encoding:mime-version:subject:date :x-mailer:sender; bh=WhLDQlDajc3lzayT5Y6KSBd3VNb2eS9yZ6K8J4Jc/dI=; b=CMjIllm/Isj9j0A03ykQTTa0xuJCStVgOeFYQgron7LUz16QsxresJoKX+0Ls2Diq0 sfbHWWmW71gN/jF62YCpRw9W0hYd51pGu7UJcEIKu/7XCpDkIKn357tXGGNcTshGILOe K3+wGW2DyclBvFd1jKJ0ESVdgCUQ00bCom9Ro= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:from:to:content-type:content-transfer-encoding :mime-version:subject:date:x-mailer:sender; b=X/xEfS8kN1sYOeCW5BTuShWWBWmJ9aw1szcB0GDAndIqZ4YXOxO1kQFHQxj89S0VqF r3y5fIaGxHlsObkEvkjCP2F/zutzu8ENr49w4ciO0ky8Xb0cdLetfA6vjIIT7NJL+Iqf tGADmHIQaLq5UfUM0iNzD7zGbDG033W3mQK2s= Thanks. - Stoney -- Stonewall Ballard stoney@sb.org http://stoney.sb.org/ _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.ap... In Motion, a layer used as an image param is naturally synchronized with the filter's layer, even if they start at different times. In FCP, I haven't been able to find a way to accomplish this. I would have thought that timingApi's startTimeOfImageParm:forEffect:, possibly in conjunction with startTimeForEffect: or startTimeOfInputToFilter: would let me calculate any time offset between a layer with a filter and another layer with which it's composited, and which also is used as an image param. However, startTimeOfImageParm:forEffect: always returns 0 in my tests. I've also found that both timelineTimeFromImageTime:forParmId:forEffect: and timelineTimeFromInputTime:forFilter: return 0.0 when given a time of 0.0, even though the filtered clip and the image param clip are offset (differently) from the beginning of the sequence. What's odder (to me) is that the two examples of built-in FCP filters that I checked, Difference Matte and Compound Arithmetic, use only the first frame of an image param. I don't understand the point of that. I don't have an existence proof that FCP filters can access other layers at the current time. This, of course, is common in AE and Motion. Is there a way for a filter in FCP to determine the current frame of another layer in the same sequence as the filter's layer, when it's used as an image param? This email sent to site_archiver@lists.apple.com