TEST2 does yellow tinting represent when using “color misaligned images” on iPhone/iOS

Friday, June 10, 2011 - Posted by Adam at 4:41 PM

Qestion

so--i switched on "color misaligned images" to improve drawing performance in our app (Spot). The documentation states:
Puts a magenta overlay over images
whose source pixels aren't aligned to
destination pixels
I don't know what the yellow means however. (There is a "Color Offscreen-Rendered" option that uses yellow... does "Color Misaligned Images" also turn on this option?)
Anybody know?
TIA

Answer

Magenta overlays are caused by subpixel misalignment, while yellow overlays are caused by stretching. Prior to iOS 4, Instruments used magenta for both.