Importing Video With Transparency

Compositing
1

I want to import 3D animated effects into a video editor and place it above a live action video footage. How can you import these 3D animated effects into a video editor without losing the transparency so that it will appear to be above the live action video footage?

My specific problem is that I am able to remove the background of a 3D animation by using chroma key but when the 3D object is only half transparent, chroma key fails. I'm using maya 3D software.

2

You get transparency if the file has transparency. Thing is fusion just shows you premulted color by default.

3

If u have transperency in ur 3d element u'll get it. no need to add chroma key ......