Rendering and preserving Transparency

[snapware]

Which file formats allow you to render a movie and preserve transparency so I can then take that movie and import it later on onto other video clips

i need to preserve the transparency though so i can overlay it

[BJ_M]

QT targa and png are two easy ones to use -- there are several others ... what are you using to render a movie?

[snapware]

Yeah I want to render a movie clip and keep the transparency

[BJ_M]

render with what ? render could mean a lot of things ..

in other words - are you sure it has transparency to begin with ?

are you doing composting? cgi ? , film transfers with a scanner ?

[snapware]

yes it has transprancy to begin with, i think the alpha channel is transparent if i remember correctly

[BJ_M]

well then render it in the same format as it is most likely lossless compression ...