The lerpColor() function is used to interpolate two colors to find a third color between them. The amount of interpolation between the two colors can be set using the amt parameters. The color interpolation depends on the current color mode.
Syntax:
lerpColor(c1, c2, amt)
Parameters: This function accepts three parameters as mentioned above and described below:
- c1: It is a p5.Color which represents the first color from which the final color will be interpolated.
- c2: It is a p5.Color which represents the second color to which the final color will be interpolated.
- amt: It is a number between 0 and 1 which determines which color will be used more for the interpolation. A value near 0.1 would prefer the first color more and a value near 0.9 would prefer the second color for interpolation.
Return Value: It returns a p5.Color element with the interpolated color.
The example below illustrate the lerpColor() function in p5.js:
Example:
function setup() {   createCanvas(500, 350);   textSize(18);       text("From Color", 20, 20);   fromColor = color("red");     text("Lerped Color", 150, 20);     text("To Color", 300, 20);   toColor = color("blue");       text("Adjust this slider to change the"+              " amount of lerping", 20, 200)   alphaSlider = createSlider(0, 100, 50);   alphaSlider.position(20, 220);   alphaSlider.style('width', '250px'); }   function draw() {   lerpedColor = lerpColor(fromColor, toColor, alphaSlider.value() / 100);     fill(fromColor);   rect(30, 30, 50, 100);     fill(lerpedColor);   rect(170, 30, 50, 100);     fill(toColor);   rect(310, 30, 50, 100); } |
Output:
Online editor: https://editor.p5js.org/
Environment Setup: https://www.geeksforgeeks.org/p5-js-soundfile-object-installation-and-methods/
Reference: https://p5js.org/reference/#/p5/lerpColor
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