Resizing high res textures?

[hardcore_gamer]

If I want higher quality textures that have high resolution how can I prevent them from being too big inside Doombuilder/the game? Let's say I took a 512x512 texture and wanted to use it the same as I would one that was only 128x128. How can I make sure they are the correct dimension size even though the resolution is higher? I am using gzdoom by the way.

[boris]

https://zdoom.org/wiki/Texture#Texture_scaling