I am wondering if there are any reasons to prefer a square texture size like 1024x1024 over a rectangular one like 1024x2048? Depending on the situation of course.
I’m about to do this to an important (character) model. Are there any performance concerns whatsoever?
Thanks!
You can use a texture like that without as much concern as using a non-power of two texture.
Size of the texture is still a consideration that you should be aware of.
For instance, a non-power of two texture like 300 x 500 would be bad because this will not be streamed or use any mips. This will keep the full resolution rendered at all times rather than using LODs that step down the quality as you get further away.
If you use a power of two texture like 1024 x 1024, or 1024 x 2048 you’ll still be OK as this is a power of two. It will be streamed and can have LODs for quality reduction at distances.
You can see textures like this included with any SpeedTree assets as these are often used for Tree Trunks and bark.
I hope this helps.
Tim
Sounds good, thanks!