I’m currently working on an animation project, where I am privileged to have it projected on a relatively large building.
Usually when I make animations I keep my resolution and PPI settings relatively low, because they end up on youtube, or a television at most.
My pc is a six core 2.6 ghz 11th generation i5, with 32 gb RAM.
My question is how far I can blow up my animations to have them have a decent resolution for projection, while keeping the animation process manageable.
If you don’t mind installing an external, not fully GPL-compliant version of FFmpeg, either ffmpeg-release-essentials.7z or ffmpeg-release-full.7z from Gyan.dev would work, then you can also encode in ultra-high resolutions. I believe up to 5000 by 8000 pixels, but you can check that. Such sizes will probably require you to split your animation into shorter shots, which you can then merge in a video editor once they are finished, but that’s not rocket science. However, I think the normal 4k cinema resolution should be sufficient, and Krita can probably handle that natively without external FFmpeg.
But to give you a benchmark for estimating whether you need gigantic resolutions, here is a look at large formats and the resolutions used:
The DCI (Digital Cinema Initiatives) 4K resolution in the context of cinema projections is 4096 x 2160 pixels. This is the maximum resolution for the largest cinema screens. It is currently the standard format for digital cinema projections and differs from UHD resolution (3840 x 2160), which is often referred to as 4K in the consumer sector. This is supposedly sufficient for screens measuring approx. 22m x 10m.
If you ask your preferred search engine, you will be able to find similar reports so you can compare and see if that is enough for your needs.
Michelist
You probably don’t need a higher resolution, you can perhaps even get away with much less than normal. The reason is the relative size from the viewers perspective.
With a screen when you watch a video on YouTube you have the display right in front of you, when you have a building you are probably standing a loooot farther away from it to see the full picture and even with the much larger “display size” it is probably not larger than a screen relative to the viewer. Find out what the projection size is and the distance the viewer has to stand away from it to see it in full view and you can calculate the relative size, compare it to a normal video and you will know the resolution you have to aim for (chances are it’s even lower than you normally do).
There is a reason that movies in cinemas don’t have a much higher resolution than you find on Netflix’s 4K library (they have another aspect ration tough) despite being projected on a wall 10 times larger and that is because in the cinema you sit 20 meters away while in your home it is just about 2. The relative size is just about the same and therefore it is not really worth it to have a higher resolution.
These are both really helpful answers, thanks a lot!
Indeed, I usually do this anyway and this project will be no different.
The animation consists of scenes featuring different birds, the full animation will be projected on the building, and later the separate scenes will be projected on a smaller, different part of it.
That’s great advice, and actually quite easy to establish.
There will however be people viewing it from a distance, as well as nearer (walking by it in relative close proximity).
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