Comments on: Logic != Math: Transparency Example http://www.blackcj.com/blog/2009/06/17/logic-math-transparency-example/ Cutting edge development with Adobe Flex, ActionScript and AIR Wed, 01 Sep 2010 12:24:22 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: Vadim http://www.blackcj.com/blog/2009/06/17/logic-math-transparency-example/comment-page-1/#comment-139 Vadim Wed, 17 Jun 2009 20:24:53 +0000 http://www.blackcj.com/blog/?p=413#comment-139 Actually math implementation of alpha is something like resultColor = (1-alpha)* backgroundColor+ alpha*foregroundColor alpha is number between 0 and 1 and transparency of foreground where function is applied for all R,G,B values of color. so math answer is not 10 it's infinity. Actually math implementation of alpha is something like
resultColor = (1-alpha)* backgroundColor+ alpha*foregroundColor
alpha is number between 0 and 1 and transparency of foreground
where function is applied for all R,G,B values of color. so math answer is not 10 it’s infinity.

]]> By: Chris Black http://www.blackcj.com/blog/2009/06/17/logic-math-transparency-example/comment-page-1/#comment-138 Chris Black Wed, 17 Jun 2009 20:03:14 +0000 http://www.blackcj.com/blog/?p=413#comment-138 Thank you Kulp for your quick response! I had a number of co-workers that believed the full alpha should be reached much sooner (in the 10 to 100 range). The example above has just over 10,000 blue circles overlapped on top of each other. Thank you Kulp for your quick response! I had a number of co-workers that believed the full alpha should be reached much sooner (in the 10 to 100 range). The example above has just over 10,000 blue circles overlapped on top of each other.

]]> By: Darren Kulp http://www.blackcj.com/blog/2009/06/17/logic-math-transparency-example/comment-page-1/#comment-137 Darren Kulp Wed, 17 Jun 2009 19:30:17 +0000 http://www.blackcj.com/blog/?p=413#comment-137 Actually, the 97% limit is just due to your computer's rounding. Mathematically, it is possible to reach 100% ... with an infinite quantity of circles. http://en.wikipedia.org/wiki/Limit_(mathematics) Actually, the 97% limit is just due to your computer’s rounding. Mathematically, it is possible to reach 100% … with an infinite quantity of circles.

http://en.wikipedia.org/wiki/Limit_(mathematics)

]]>