Rendered file is not as previewed

Paul G · Post by **Paul G** » Thu Jan 31, 2008 6:56 am

I modified the file of the spinning globe & then went to render it out as a video file a file was created. When the video is played I find that the the entire background, the star field is missing & has been replaced with a solid black background. As the title comes around the earth I find that the title has a wide blue band surrounding it which changes shape as the video plays. It appears that the blue I'm seeing is very wide band which surrounds the globes title. If I go back to the time line view & click about half way through the file I can see from the preview that nothing seems amiss. Have I some how turned of the background & perhaps rendered it out as an overlays that is if it's possible to have an AVI with a transparent background.

rwernyei · Post by **rwernyei** » Thu Jan 31, 2008 5:08 pm

Sounds like you rendered the file as 32 bit RGB avi. This saves file with alpha channel and makes the background transparent, great for overlays in non-linear editing. To keep the background render as 24 bit avi.

Hope this helps.

Paul G · Post by **Paul G** » Fri Feb 01, 2008 1:29 am

Thanks for that info. I can't recall changing any settings in this area. I was unaware that there were different sorts of avi's, some of which had alpha channels.