—Quote (Originally by jemillo)—
I received a trial copy of Motor with Digital Arts recently and thought I would give it a go. I followed the online tutorials and tracked and roto’d some quicktime footage, but when it comes to rendering I am so confused. I only want to be able to see the bit of footage I have roto’d but instead I either get a white matt version on a black background, or the full original film footage unchanged by the process. Obviously I am doing something wrong (or being stupid) and I would love to know what, as both tutorials end at the render stage ! All I want to be able to do is take the bit of footage I have rotoscoped and take it into final cut to overlay over some other footage.
I apologise if this is a really obvious question, but I have never done this before and really want to get it to work!
No need for appologies.
I will detail two options for rendering RGB with Embedded alpha channels.
1. RGB + Alpha Quicktime file:
- File / Render
- Select RGB (Channel)
- Select Matte (Channel)
- Make sure all the layers desired for roto output are selected under the Matte menu.
- Set the appropriate Ranget to Export (the default is the project In/Out)
- Export to - Quicktime Movie and click Next
- Name the export
- The Compression Settings should appear (Codec)
- Choose the desired Codec. Note only Codecs that allow alpha channels will work.
- Set the Depth to Millions of Colors + (If this is not set the alpha / roto will not render)
A good Codec to use is Animation. Though I realise with FCP you wan to stick to the codec you normally use if possible.
NOTE: On Mac you have to deslect Key every frame option.
- Qaulity up to the user preference.
- Import the render into FCP, just make sure the alpha is active.