I've been developing a game using cocos2D for the last few months to great success. The game is ready for release but when I was going to use the simulator to create a gameplay video for promotional use I ran into a strange transparency problem where my PNG images appear way to dark.
I've read through a lot of posts on this forums regarding openGL blending functions, pre-multiplied alpha and pixel formats while trying to fix this alpha transparency problem but nothing seems to work!
Can someone explain to me the difference between the rendering on the simulator and the device and which openGL blending function I should use? Should I compress the PNGs or does the simulator ignore that setting?