Jeremy, All I did was import a static png image, added some AFX text with effects on it, sent it to the render queue, and then under 'Output Module' I changed the format to PNG sequence. Under 'Video Output' of that same dialogue, I changed the Channels to be 'RGB + Alpha'
In my test, everything that was the background (white), was rendered as transparent. Of course, I haven't tried doing any keying.... but I am pretty sure masking would work.... Try doing a simple test with your file, like one frame with no keying...that may be causing a problem, but I would imagine that it SHOULD work.. ~Mathew ----- Original Message ----- From: "Jeremy" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, February 01, 2003 12:58 AM Subject: RE: <lingo-l> Movie transparency > Can you point me towards how to get the transparent background from AFX > 5.5. When I key out a color it shows the background color, and I don't > see an option for transparent background color, so when I render out the > png sequence it has a bg color. Thanks > > J > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]] On Behalf Of Mathew Ray > Sent: Friday, January 31, 2003 9:27 AM > To: [EMAIL PROTECTED] > Subject: Re: <lingo-l> Movie transparency > > > Actually, I just exported a png sequence with an embedded alpha channel > using AFX5.5, and it works fine... its true a VIDEO file doesn't have > transparency per-se unless you add a mask to it, but you can fake it > with image sequences, just watch out for performance issues as Charlie > mentioned. > > ~Mathew > > > Robin Said: > > After effects cannot render movies with a transparent background, the > > only way I would achieve what your trying to do is use still images. > > one for > the > > image and on for the alpha/mask of each frame of the sequence. > > > > you can output the sequence from after fx once with the main image and > once > > for the alpha then import those into director and place the images in > > this sequence,, > > > > [To remove yourself from this list, or to change to digest mode, go to > http://www.penworks.com/lingo-l.cgi To post messages to the list, email > [EMAIL PROTECTED] (Problems, email [EMAIL PROTECTED]). > Lingo-L is for learning and helping with programming Lingo. Thanks!] > > > [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/lingo-l.cgi To post messages to the list, email [EMAIL PROTECTED] (Problems, email [EMAIL PROTECTED]). Lingo-L is for learning and helping with programming Lingo. Thanks!] > [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/lingo-l.cgi To post messages to the list, email [EMAIL PROTECTED] (Problems, email [EMAIL PROTECTED]). Lingo-L is for learning and helping with programming Lingo. Thanks!]
