Project 1: Programmatic Variations in Color
Last updated
Last updated
Using HSB ColorMode allows us to configure and modify colors in our programs based changing values for the Hue, Saturation, or Brightness.
If we use a gradient (programatic change) for the brightness of an abstract pattern, we can enhance the illusion of depth for 2D designs.
Since we're using float len
as an input parameter to determine the size of the shape, we can also use this value of len to help determine a good value to control varying the brightness each time we drawn a shape. One way to do this is to set the max value for Brightness using the max value for Len:
In the example below, we are creating a relationship between the current value of len, the maximum len value: lenMax, and the max value for brightness to determine the brightness value for a current value of len. This is exactly what the Map function does, it creates a linear mapping between 2 ranges of values. So, as long as we have access to the range of each set of values, we can use the processing map function to programmatically determine color for our vertexPatterns. To control the hue, we're using the map function to create a relationship between the mouseX position and we're constraining the hue to a narrow range between blue and pink (Hue between 200,300);
Processing provides a function LerpColor( ) to create gradients of color between 2 color endpoints. Lerp means Linear interpolation: which means each intermediate color