Name
alpha()
Description
Extracts the alpha value from a color.
Examples
size(400,400); noStroke(); color c = color(0, 126, 255, 102); fill(c); rect(60, 60, 140, 280); float value = alpha(c); // Sets 'value' to 102 fill(value); rect(200, 60, 140, 280);![Image output for example 1]()
Syntax
alpha(rgb)
Parameters
rgb(int)any value of the color datatype
Return
float
Related
- Ben Fry and Casey Reas. It is developed by a team of contributors around the world.