December 2009 - Pro-apps-dev

Re: A way to change QuickTime ".motn" alpha interpretation?
by Darrin Cardani 09 Dec '09

09 Dec '09

site_archiver(a)lists.apple.com Delivered-To: Pro-apps-dev(a)lists.apple.com Darrin On Dec 9, 2009, at 1:02 AM, Lu Nelson wrote: Hi, I'm hoping this message reaches someone who knows the ins and outs of QT/ProKit, and how Motion's ".motn" files are interpreted when used as media files: Let me explain -- I am using Motion with Avid Media Composer. or Not) when rendering, render to an Avid codec, and then import to Avid, but it involves several steps and is therefore slow. My problem is that although when rendering out of Motion, , when you choose to import a ".motn" file via Quicktime you get only Premultiplied Black. It is also possible to drag a ".motn" file directly to an Avid bin however (similar to how one can do in FCP) and allow Avid to import the file to disk, via On-the-fly-rendering -- courtesy of Quicktime; but in this case the alpha always comes through as Pre-multiplied Black. This is no good in Media Composer (MC only understands Straight alphas, and so whatever you import this way has a black halo around it). I may be wrong, but the only reason I can see for this is that QuickTime's default parsing of Motion projects is to assume alpha should be premult-black...and my question is whether there's a way to change this, so that these files will render in to the Avid with straight alphas? I'm hoping against hope, that there's a tweak, like "defaults write com.apple...." where I can change this parameter in QT or ProKit or whatever is responsible for this parsing Thanks! _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/dcardani%40apple.com -- Darrin Cardani dcardani(a)apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… Lu, Motion always generates premultiplied alpha. You can't change that. However, doesn't Avid have a popup somewhere to set the interpretation of the alpha? It seems like most good editing apps do. If not, you could also see if there's an "unmult" plugin available somewhere. There used to be a free one for After Effects, but I don't know about Avid. This sounds like an issue on the Avid side that it's not letting you set the interpretation on the fly. >From Motion, it is possible to choose the Alpha type (Pre-multiplied This email sent to dcardani(a)apple.com This email sent to site_archiver(a)lists.apple.com

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A way to change QuickTime ".motn" alpha interpretation?
by Lu Nelson 09 Dec '09

09 Dec '09

site_archiver(a)lists.apple.com Delivered-To: Pro-apps-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:date:message-id:subject :from:to:content-type; bh=wcmjZ4zIHpwSFHNGqXAFfdpbvEVP6vfgRG5W8KFR95A=; b=qxB68WHVd0FXgiyArwcqp92Gghy1nrAbCX+lsQaw2JOnIAinYnI36E4aoudJX8Aafz zpHZCdZ2Rhn0JUbpxWfyueWWrIcEkhQKlZaoU7f28qbQwDChe2nQSfdm5Is824dtGVzh 1VcZD66sC59ZPJyR4Mm8BCbQgw2Ft+D5NrR1w= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=XUTHEMJC9b5A5NQ02+ZRH3AkUfOYQAdRmZ57EqtM3fxn5GLLOOvKIZR1OtcX0/pWZ1 DCVsgApKuE4fNrfUhAs0zjIM3WXtDvBeP6slxAUV/pQnGB3ay/0oSZdVVj2sk/pE+JWA juaSesRFhP8yYc/7IIXKD7Oi/nuC09pu58RAU= Hi, I'm hoping this message reaches someone who knows the ins and outs of QT/ProKit, and how Motion's ".motn" files are interpreted when used as media files: Let me explain -- I am using Motion with Avid Media Composer. >From Motion, it is possible to choose the Alpha type (Pre-multiplied or Not) when rendering, render to an Avid codec, and then import to Avid, but it involves several steps and is therefore slow. My problem is that although when rendering out of Motion, , when you choose to import a ".motn" file via Quicktime you get only Premultiplied Black. It is also possible to drag a ".motn" file directly to an Avid bin however (similar to how one can do in FCP) and allow Avid to import the file to disk, via On-the-fly-rendering -- courtesy of Quicktime; but in this case the alpha always comes through as Pre-multiplied Black. This is no good in Media Composer (MC only understands Straight alphas, and so whatever you import this way has a black halo around it). I may be wrong, but the only reason I can see for this is that QuickTime's default parsing of Motion projects is to assume alpha should be premult-black...and my question is whether there's a way to change this, so that these files will render in to the Avid with straight alphas? I'm hoping against hope, that there's a tweak, like "defaults write com.apple...." where I can change this parameter in QT or ProKit or whatever is responsible for this parsing Thanks! _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… This email sent to site_archiver(a)lists.apple.com

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Re: Setting keyframes in FCP
by Paul Schneider 06 Dec '09

06 Dec '09

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com Hi Garrick, This looks like a bug in FCP. Unfortunately, it's still there in version 7. I've filed radar #7447967 to track fixing it. Sorry about that... - Paul On Dec 5, 2009, at 11:41 PM, Garrick Meeker wrote: > I know that FxPlug doesn't have an interface for manipulating keyframes, and that the set parameter value methods won't set a keyframe until the user has keyframed that parameter. I can't even get these methods to have any effect for times other than the current one (atTime != currentTime). I'm calling this from the action on a custom parameter, and yes, I'm calling startAction first. > > I've only tried this in FCP6 as I don't have access to FCP7 yet. Has anyone else tried this? > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/pro-apps-dev/pschneider%40apple.com > > This email sent to pschneider(a)apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… This email sent to site_archiver(a)lists.apple.com

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Setting keyframes in FCP
by Garrick Meeker 06 Dec '09

06 Dec '09

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com I know that FxPlug doesn't have an interface for manipulating keyframes, and that the set parameter value methods won't set a keyframe until the user has keyframed that parameter. I can't even get these methods to have any effect for times other than the current one (atTime != currentTime). I'm calling this from the action on a custom parameter, and yes, I'm calling startAction first. I've only tried this in FCP6 as I don't have access to FCP7 yet. Has anyone else tried this? _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… This email sent to site_archiver(a)lists.apple.com

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Re: Is anyone using the "needsExportFlag" hack?
by Darrin Cardani 03 Dec '09

03 Dec '09

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… This email sent to site_archiver(a)lists.apple.com

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Re: Is anyone using the "needsExportFlag" hack?
by Christoph Vonrhein 03 Dec '09

03 Dec '09

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… This email sent to site_archiver(a)lists.apple.com

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Re: Is anyone using the "needsExportFlag" hack?
by Matt Rhodes 03 Dec '09

03 Dec '09

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… This email sent to site_archiver(a)lists.apple.com

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Re: Is anyone using the "needsExportFlag" hack?
by Christoph Vonrhein 03 Dec '09

03 Dec '09

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… This email sent to site_archiver(a)lists.apple.com

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Is anyone using the "needsExportFlag" hack?
by Darrin Cardani 02 Dec '09

02 Dec '09

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… This email sent to site_archiver(a)lists.apple.com

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