Spring RTS Engine

APNG is an extension of the PNG format, adding support for animated images. It is intended to be a replacement for simple animated images that have traditionally used the GIF format, while adding support for 24-bit images and 8-bit transparency. APNG is a simpler alternative to MNG, providing a spec suitable for the most common usage of animated images on the Internet. APNG is backwards-compatible with PNG; any PNG decoder should be able to ignore the APNG-specific chunks and display a single image.

rattle wrote:I never knew that renaming extensions changed the file header and structure to the new format.

http://www.gamani.com/gmgdown.htm
I guess it works both ways...

APNG is an extension of the PNG format......any PNG decoder should be able to ignore the APNG-specific chunks and display a single image.

Felix the Cat wrote:I'm gonna change all of my PNGs to MP3s so I can listen to my pictures!



Hoi: Changing the extension to .gif will NOT convert it to .gif. Your quoted bit says that a .png reader should be able to read .apng (or whatever the extension is). While that's neat and all, it doesn't answer AF's question because it's not a way to convert it to .gif.

ooh i should read!

AF wrote:Nah its a normal png with the extra animation frames appended to the end.

AF wrote:They're a cultural convention and there's nothing enforcing them.

Hoi wrote:

AF wrote:Nah its a normal png with the extra animation frames appended to the end.

hmm felix confused me he was suddenly talking about gifs

AF wrote:file extensions are just a part of the file name and have nothing to do with the contents. They're a cultural convention and there's nothing enforcing them.

Thus renaming the file extension does not change the files contents.

rattle wrote:wat
Rename a .png file to a .png file? Think before hitting submit (or reply)