I want to be sure how to handle this, as I now came across a whole lot of stuff regarding texel density considerate UV packing, which kinda confused me, especially since it's recent information.(2018) https://www.youtube.com/watch?v=5e6zvJqVqlA
As far I understand, UE handles it's textures via texture streaming, which only streams in the resolutions required to display the needed LOD. This makes manual texel density considerations to a degree obsolete, right?
With UE, I just need to make sure, that the biggest prop has a, for
my needs acceptable, texel density (or higher), and the rest can get
adjusted in engine to match this density.
To give an example: I have a hand painted soda can prop on a 4k texture,
and a cupboard on a 4k texture. Naturally, the can will have a much
higher texel density than the cupboard. But if the cupboard looks fine
with the 4k resolution, I can just downsample the can to match the
native cupboard texel density, or if 4k is too much for my needs entirely,
downsample both to a floor-level which still is acceptable and takes
resources into account.
A video I saw, suggested authoring the can texture
a lot smaller than the big-prop texture, having to manually make sure
the UV islands have the same texel density in regard to their textures
as all other islands of other props sharing the same environment.But I guess I can forget about that using UE.
Did I get this all right?
Because I'm a little worried that I later have to redo a bunch of stuff. At the moment I have things using 4k tiling textures that end up having texel densities of 5k+/m, while I have props that have much lower texel density and use packed and painted textures.
Would it make sense to use 8k for those props so that I later have fewer restrictions regarding the lowest common denominator? I'd like to aim for 4k/m on a production level, so that with newer gpu generations, I can utilize increasing VRAM without having to re-author stuff.
I'd be happy if somebody could verify if I got it right, or point me to mistakes I'm making in my considerations.
Thanks in advance!