I noticed the vignette effect on Android looks really good. In the code, it boils down to this surprising formula:
float lumen = shade / (1.0 + exp((dist * inv_max_dist - range) * slope)) + (1.0 - shade); Anyone know where this formula comes from? I was definitely surprised to see a cameo from the irrational number e. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
