.j2k format
The power of j2k has a downside which is extremely slow encode and decode times due to the highly complex nature Lowering the compression on the 1-2% of images that are highly complex and suffer artifacts. What I normally do is compress everything at 10:1 and then do a run through of all artwork at the end of the project
This system is far superior to jpgĪnd can easily compress our source artwork at a 10 to 1 ratio, from 75MB to 7.5MB with little to no perceived loss of quality So you might get up to 6 to 1, but probably with some image quality issues.Īn evolution of the jpg format that isn't widely used is j2k, which means jpeg2000. The only benefit is you can set the compression level per image by hand, so some might be forced smaller without suffering Is vaguely similar to winzip anyway, then you haven't saved much as winzip wont be able to make a jpg much smaller if at all.
#.j2k format full
Now instead of saving the images at full quality (using the tga format) we can use a lossy format like jpg.īy saving the image out as a jpg you are pre-compressing it and the harder you do it the worse the image looks. No loss of quality, a 5 to 1 compression. Using something like winzip we can get that down to about 15MB with MrRobot has about 300 textures currently, which is roughly 75MB. So our example texture will take up 262,144 bytes on disk. We don't always need the alpha part, it is usedīy the hardware to control transparent portions of the image. Each pixel has an 8 bit red, green, blue and alpha component.
It's a rule of thumb, but most textures are often around 256×256 pixels, so they look nice and crisp at fairly high resolutions When you look at the size of your game installer you usually find a very high proportion of that space is taken up by artwork. Even with broadband, file size can still put off people who are browsing and aren't necessarily hunting for your game. So there are a lot of modem users still out there. I think the USA is on track for 65% broadband coverage in the next year or two.
#.j2k format download
Even in these days of broadband, download size is very important.