Image Optimisation

cereal

Would just like to know if it is worth compressing my pngs using save for web in photoshop. Ive been using indexed color which saves a lot on file sizes although ive heared that gamesalad recompresses all your images when you build the game anyway so using indexed color might be a waste of time?

Socks

Indexed colour is less than ideal (it's only 8bit).

I'd save all your files as normal (RGB / 24bit) PSD files and if you want to reduce them use something like ImageAlpha http://pngmini.com .

cereal

Im probably mistaken but It seems like Image Alpha does the exact same thing as using photoshops save for web with indexed color (from the site): ImageAlpha converts 24-bit PNG to paletted 8-bit with full alpha channel. I already can get this from PS, my issue is that ive got about 1 mb of images and my game size is about 7mb so my guess was that the images were being recompressed within gamesalad with a worse compression?

glynius

for reducing the size without loosing quality, i use tinypng.
http://tinypng.org/

gyroscope

@cereal A bit off-topic but might be useful for you or anyone else at some time: here's a new jpeg compression prog. for websites, etc., looks promising:

http://www.jpegmini.com

ericzingeler

FYI: After import, you can replace processed images in your project images folder. Use tinypng like @glynius suggested, then import into GS, then replace the files. Also, if an image doesn't require transparency, use 8-bit png or jpeg as this will reduce RAM load when your app is running.

debch

Try this tool as well
http://compresspng.com