Hi,
I've never had visual issues while scaling down textures, however for text I'm losing some quality. I'm using bmGlyph to create my bitmap fonts, and it seems to do the job - textures for retina and non-retina devices.
For example, I use the size 500 (yup, I do have some large text sometimes), and I when I set the SPTextField fontSize property to, say, 50, I do get pixelated results.
Am I missing something? I would like to avoid having more than 1 texture for text due to memory consumption.
Cheers!