Unity Game Optimization - Third Edition

Managing resolution downscaling externally

Unity puts a lot of effort into making things as easy to use as possible and provides us with the ability to place the project files from external tools to our project workspace, such as .PSD and .TIFF files, which are often large and split into multiple layered images. Unity automatically generates a texture file from the file's contents for the rest of the engine to make use of, which can be very convenient, as we only need to maintain a single copy of the file through source control, and the Unity copy is automatically updated when an artist makes changes.

The problem is that the aliasing introduced by Unity's autotexture generation and compression techniques from these files may not be as good ...