question about image size?

guilleface

hi so i if my actor is 18 width, so i need double the size for iphone4, so thats 36 width and when i divided that number by 4 is =9, when i divide a number , my answer number needs to be a even number only or can it be a odd too?

lycettebros

Why divide by 4? Images only need to be double res for Retina. So halving the size is the only thing to do - by 4 is not necessary.

Even numbers are best to work with too.

SlickZero

By 4 is not always necessary, but it's the best practice, especially with retina. The memory usage for GameSalad with images is 8x8, 16x16, 32x32, 64x64, 128x128, 256x256, 512x512, 1024x1024, etc...and any length and height combination you can come up with within those boundaries. If you go over 1 pixel with any of those, then it uses the next size up as far as memory is concerned. Staying within those numbers while importing an image will assure a crisp image, instead of a blurry one as well.

guilleface

yeah i now about the memory usage so if i have a actor size 65 is better to make it 64, so i can have any actor size of 17,19,21,23 and so on?, so far i was making all my images to be even size after dividing by 4, so in this case my actor beeing 36/4=9 so i would had to make my actor either 32/4=8 or 40/4-10 but is ok to use 36/4=9 then?