Total duration of the nativity is 12 minutes approximately. Then using Delta Keyer with clean plate, colour correction (in Fusion tab), light wrap node, some transform nodes, polygon masks (3-4) drop shadow effect, and on some pre-rendered particles' clips, created on Particle Illusion, or ready videos. All of my fusion comps include FG (greenscreen) and one or two moving backgrounds (various resolutions) which I would resize to have the same resolution as the project. I am working on an 1080P, 30fps timeline with 27 fusion clips totally.

However the whole export took about 6 hours! Is this something normal for my system? Finally after some errors, of clips going offline, and 2-3 crashes I managed to export the video, so to work on the sound now. I did use the proxy mode which helped a lot I must say. Everything was ok, however once I started the compositing process, creating more and more fusion clips, Davinci became slower and slower. I start editing the nativity in sequences, and the created a master sequence were I copy/pasted all the clips (I chose to avoid importing sequences in sequence). The film was shot on a simple 4K handycam, at UHD resolution and 30fps, H264 format.

I am currently in the process of finishing a primary school Christmas nativity using DaVinci Resolve free edition, which was shot exclusively on green screen.

Davinci resolve 18 export