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Question by ziv03 · Dec 05, 2013 at 12:04 PM · size png large

empy png takes the same size

If i import a png with a size of 1000x1000, and I imoprt another png with size of 1000x1000 only thing png is completely empty (nothing but transparent), their weight is 5MB both. why is that? it's also much larger then on my assets folder (I'm assuming thats the reason).

thanks!

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sdgd · Dec 05, 2013 at 12:07 PM 0

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OFC it is same size

think it like this: each pixel contains 32 bits of collors

now multiply 32 bits with 1000X1000 that's 4$$anonymous$$B

this is not jpg file but PNG witch is the least efficient file format

every pixel contains data what color is that pixel

and 2D array is 1000X1000 so 1k in each direction that's allot of pixels even for no color but it still takes 32 bits in to the array.

I'm probably a bit wrong about 32 bits as it's 5$$anonymous$$B as you say but general idea is that.

now jpg file has it differently

blank it'll contain: array size is 1000X1000 each one is collored 0.

so that's 2 integers for 1k and what color all of them contain.

so I'd guess it would become around 3B