How to extend acceptable image sizes to all sizes

[dan-huang]

Acceptable image sizes seems unreasonable, because every kind of image size can do pan, pinch.

[markst]

http://gamedev.stackexchange.com/questions/26187/why-are-textures-always-square-powers-of-two-what-if-they-arent

[mayakraft]

This thread should be the place for all discussion about non-power of 2 image sizes

1. Equirectangular images by definition are 2:1 ratio, we still enforce this correct?

2. should this library adopt a resize function for non POT images? And what are best practices?

• scale up image dimensions to nearest POT to prevent lossy
• bilinear filtering?
• how to handle non 2:1 ratio? crop? stretch? fail?
• if images are 1 pixel off, should resort to cropping? 1025x512 crop to 1024x512