Smoothstep isn’t that great for AA… X axis is distance to edge; Y axis is area of pixel covered. Blue = true area, green = smoothstep.pic.twitter.com/z5rZVIbwyH
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Tentative conclusion: Not worth calculating exact trapezoidal area coverage. Better to just use a polynomial approximation based on distance
Interesting. My simple geometrical analysis shows a huge difference between linear and diagonal.pic.twitter.com/yjJaIszjDO
I’m confused. Your pixel square doesn’t have length 1 in both drawings (in the second it’s sqrt(2)/2).
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.