Sun Feb 10, 2019 5:57 pm
I think your problem is that you created your fusion node while at HD.
I'm making a guess, as I use standalone fusion...i don't use the integrated fusion at all...but in my typical workflow, which involves Resolve exporting new media into fusion:
Assuming your source footage is 4k and your resolve timeline is HD, when you create your fusion clip, it creates it at the resolve resolution. Inside fusion you can certainly change the size of your comps, just be sure you are using the original 4k sources for this.
Simply rendering your timeline to 4k at the delivery page is not the way to go, unless you have set your timeline to 4k, and your sources are 4k, otherwise you are simply blowing up the image, and yes some pixilization will occur.
The proper way (in standalone fusion) is to set your resolve timeline to 4k, create your fusion media...then you have 4k sources through out the path. Render your fusion clips, then in Resolve, jump back to HD to complete your work. You are now working with 4k media from fusion, in an hd timeline. (which is less taxing on the system than a 4k timeline). When it is time to render, switch your timeline back to 4k, check your image resize settings are correct, and then you can render out a 4k image with no quality loss. Again, assuming your sources are at 4k in the first place.
Not sure how the integrated fusion tab works, but i'm guessing it is a similar workflow...perhaps using proxys from Resolve? so if your Resolve timeline is set to HD when you send the clip to Fusion, i would guess you are using an HD clip inside Fusion.