JPEG and PNG are not the only formats
Is there a better way?
30 January 2013
Tags
- Fairy Tale Twist
- Performance
- JPEG is small, but doesn’t have alpha.
- PNG has alpha, but isn’t small.
- What if there was a format that combined the best of both?
Enter JPEG. Or rather, JPEG XR: http://en.wikipedia.org/wiki/JPEG_XR
Seems to good to be true? Well… you need to be on Adobe Flash Player 11.0 or newer. To convert our PNG to JXR I used XnView, loaded our largest assets and saves in PXR format with Overlapped Block Filtering enabled.
Results are:
- Atlas.png 2.7MB Atlas.jxr 769KB A reduction of 73%
- UI.png 2MB UI.jxr 499KB A reduction of 76%
- Menu.png 1.9MB Menu.jxr 475KB A reduction of 76%
For these three maps the total file size reduction in 75%.