I know how to render with an alpha. It's just sometimes the list of deliverables gets really long and inevitably i forget to render with an alpha, or perhaps I have a white or black solid at the bottom of my comp that i forgot about. It's easy to review files for deliver visually, but not for alpha channels. Even if the file info says there's an alpha, that doesn't mean it has rendered correctly. Perhaps I should get into the habit of using a bright blue BG comp color so that it will show up,

On Mon, Jun 10, 2013 at 8:28 PM, Glen Tubbesing <gtubbesing@gmail.com> wrote:

Actually, I think I should have asked what codec you are using. I know when I've tried to export something with an alpha channel, I have to be careful which codec I use. I don't have access to a Mac, so I don't know if Prores lets you put in an alpha channel. Just make sure that your color depth is millions+ and you should have the alpha. But, to tell you the truth, Scott, I've never seen a video player that gives the checkerboard pattern for alpha. Usually, it's just a black screen.

On Jun 10, 2013 8:08 PM, "scott.aelist" <scott.aelist@gmail.com> wrote:

QT animation and Prores... I was hoping there'd be some player that would give you maybe an alpha toggle button or something like photoshop's checkerboard view to indicate alpha... 

On Mon, Jun 10, 2013 at 7:57 PM, Glen Tubbesing <gtubbesing@gmail.com> wrote:

What file format are you using? Some don't have alpha channels available.