Using custom resolutions in Fusion Studio

I am trying to animate over a screenshot that has an uncommon resolution and aspect ratio. 2501*3226. I import it with the loader in Fusion Studio and can complete my animation with no troubles. Rendering within Fustion Studio during animating looks good. When I export the animation, the image is always squeezed to 1920*1080, regardless of me changing settings in preferences, or saver. The result is not a cropped image, but a squashed one.

What is the typical workflow for dealing with oddball resolutions, and exporting in the same resolution as the original source media?

Thanks!

What codec are you exporting to? Some codecs only support fixed aspect ratios.
If you change the saver to a jpg seqeuence do you still get a squeezed result?

Alternatively, be aware of :

- yes a bit stupid, but you have overall preferences, and 'your project' ones, set your dimensions on this latter

- try to put a Letterbox node in your comp and st your dimensions there as well

Sam, even though it's good advice in itself. If the OP doesn't actively do anything to change the aspect ratio of the image then none of your suggestions should be necessary. A saver outputs what it gets fed.
If it doesn't then it's probably a codec issue.

He doesn't "actively" do anything, but "passively" he may have set the right format in the overall Fusion preferences after the ongoing project had been made from HD preferences set before he changed it, see ?

If for some reasons his comp features a BG (then bound to pref format) or a transform node which allows him to see a perfect image, something must go wrong somewhere anyway ...
Then the letterbox node just before the saver is a quick and basic way to check if it's a codec issue or not : if ot's ok in the end with it, then the comp contains an issue inside the node flow
That was my POV anyway

I have tried exporting to h.264 (ideal codec) but it gives an error. asusming this was because of an incompatibility I tried a few others (prores, DNxHR, uncompressed) all of them show a squeezed output.

Also, the image looks as it should within fusion in the render window preview, but if I select the third dot to send the preview output to another monitor, it appears squeezed (before export).

I tried changing botht he general program settings, the project settings, as well as exporting in preview mode from saver with a custom resolution, and all outputs are squeezed.

If it is a codec issue, what codec should I use? this isn't a high budget production so a lossy codec wouldn't bug me at all if I can get it to work.

[Peter Chamberlain]

2501*3226

What if you try 2500 x 3224?

You should be aiming to have your raster dimensions divisable by a power of two, not just for efficent compression but also some codecs may not accept certain dimensions. I've never tried but feeding some codecs with oddball dimensions may cause them to behave in a strange way.